./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-data/calendar.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-data/calendar.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl --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 fe08ef78ee5c945bc38e9e915e26405aefe9ffb2d4911c91347e07e6a879dcd5 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:08:52,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:08:52,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:08:52,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:08:52,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:08:52,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:08:52,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:08:52,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:08:52,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:08:52,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:08:52,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:08:52,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:08:52,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:08:52,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:08:52,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:08:52,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:08:52,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:08:52,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:08:52,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:08:52,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:08:52,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:08:52,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:08:52,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:08:52,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:08:52,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:08:52,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:08:52,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:08:52,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:08:52,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:08:52,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:08:52,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:08:52,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:08:52,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:08:52,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:08:52,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:08:52,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:08:52,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:08:52,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:08:52,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:08:52,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:08:52,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:08:52,745 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:08:52,788 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:08:52,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:08:52,789 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:08:52,789 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:08:52,796 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:08:52,797 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:08:52,797 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:08:52,797 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:08:52,797 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:08:52,797 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:08:52,798 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:08:52,799 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:08:52,799 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:08:52,799 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:08:52,799 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:08:52,799 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:08:52,800 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:08:52,800 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:08:52,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:08:52,801 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:08:52,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:08:52,801 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:08:52,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:08:52,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:08:52,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:08:52,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:08:52,804 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:08:52,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:08:52,804 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:08:52,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:08:52,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:08:52,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:08:52,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:08:52,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:08:52,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:08:52,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:08:52,806 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:08:52,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:08:52,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:08:52,806 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:08:52,807 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:08:52,807 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe08ef78ee5c945bc38e9e915e26405aefe9ffb2d4911c91347e07e6a879dcd5 [2021-11-23 17:08:53,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:08:53,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:08:53,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:08:53,162 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:08:53,162 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:08:53,164 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/heap-data/calendar.i [2021-11-23 17:08:53,224 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/data/800a42249/fd0562b103a34d3fa6d074b547df4dbb/FLAG9dac4094c [2021-11-23 17:08:53,729 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:08:53,729 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/sv-benchmarks/c/heap-data/calendar.i [2021-11-23 17:08:53,745 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/data/800a42249/fd0562b103a34d3fa6d074b547df4dbb/FLAG9dac4094c [2021-11-23 17:08:54,033 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/data/800a42249/fd0562b103a34d3fa6d074b547df4dbb [2021-11-23 17:08:54,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:08:54,036 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:08:54,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:08:54,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:08:54,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:08:54,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:08:54" (1/1) ... [2021-11-23 17:08:54,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73bbe3e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:54, skipping insertion in model container [2021-11-23 17:08:54,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:08:54" (1/1) ... [2021-11-23 17:08:54,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:08:54,113 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:08:54,407 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/sv-benchmarks/c/heap-data/calendar.i[23742,23755] [2021-11-23 17:08:54,411 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:08:54,418 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:08:54,490 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/sv-benchmarks/c/heap-data/calendar.i[23742,23755] [2021-11-23 17:08:54,491 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:08:54,533 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:08:54,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:54 WrapperNode [2021-11-23 17:08:54,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:08:54,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:08:54,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:08:54,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:08:54,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:54" (1/1) ... [2021-11-23 17:08:54,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:54" (1/1) ... [2021-11-23 17:08:54,598 INFO L137 Inliner]: procedures = 121, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 71 [2021-11-23 17:08:54,598 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:08:54,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:08:54,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:08:54,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:08:54,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:54" (1/1) ... [2021-11-23 17:08:54,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:54" (1/1) ... [2021-11-23 17:08:54,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:54" (1/1) ... [2021-11-23 17:08:54,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:54" (1/1) ... [2021-11-23 17:08:54,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:54" (1/1) ... [2021-11-23 17:08:54,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:54" (1/1) ... [2021-11-23 17:08:54,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:54" (1/1) ... [2021-11-23 17:08:54,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:08:54,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:08:54,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:08:54,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:08:54,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:54" (1/1) ... [2021-11-23 17:08:54,653 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:08:54,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:08:54,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:08:54,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:08:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 17:08:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:08:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:08:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:08:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 17:08:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 17:08:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:08:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:08:54,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:08:54,815 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:08:54,817 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:08:55,027 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:08:55,040 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:08:55,044 INFO L158 Benchmark]: Toolchain (without parser) took 1006.79ms. Allocated memory is still 96.5MB. Free memory was 56.7MB in the beginning and 48.1MB in the end (delta: 8.7MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2021-11-23 17:08:55,045 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 96.5MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:08:55,046 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.91ms. Allocated memory is still 96.5MB. Free memory was 56.5MB in the beginning and 63.2MB in the end (delta: -6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:08:55,047 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.95ms. Allocated memory is still 96.5MB. Free memory was 63.2MB in the beginning and 61.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:08:55,047 INFO L158 Benchmark]: Boogie Preprocessor took 37.97ms. Allocated memory is still 96.5MB. Free memory was 61.3MB in the beginning and 60.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:08:55,048 INFO L158 Benchmark]: RCFGBuilder took 404.62ms. Allocated memory is still 96.5MB. Free memory was 60.0MB in the beginning and 48.1MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:08:55,052 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 96.5MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 492.91ms. Allocated memory is still 96.5MB. Free memory was 56.5MB in the beginning and 63.2MB in the end (delta: -6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.95ms. Allocated memory is still 96.5MB. Free memory was 63.2MB in the beginning and 61.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.97ms. Allocated memory is still 96.5MB. Free memory was 61.3MB in the beginning and 60.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 404.62ms. Allocated memory is still 96.5MB. Free memory was 60.0MB in the beginning and 48.1MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:08:55,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-data/calendar.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl --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 fe08ef78ee5c945bc38e9e915e26405aefe9ffb2d4911c91347e07e6a879dcd5 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:08:57,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:08:57,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:08:57,812 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:08:57,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:08:57,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:08:57,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:08:57,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:08:57,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:08:57,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:08:57,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:08:57,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:08:57,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:08:57,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:08:57,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:08:57,849 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:08:57,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:08:57,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:08:57,856 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:08:57,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:08:57,868 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:08:57,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:08:57,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:08:57,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:08:57,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:08:57,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:08:57,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:08:57,887 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:08:57,888 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:08:57,889 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:08:57,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:08:57,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:08:57,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:08:57,894 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:08:57,895 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:08:57,896 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:08:57,897 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:08:57,897 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:08:57,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:08:57,899 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:08:57,900 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:08:57,901 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:08:57,945 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:08:57,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:08:57,946 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:08:57,946 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:08:57,947 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:08:57,947 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:08:57,948 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:08:57,948 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:08:57,948 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:08:57,948 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:08:57,949 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:08:57,950 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:08:57,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:08:57,952 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:08:57,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:08:57,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:08:57,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:08:57,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:08:57,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:08:57,953 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:08:57,953 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:08:57,953 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:08:57,954 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:08:57,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:08:57,954 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:08:57,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:08:57,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:08:57,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:08:57,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:08:57,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:08:57,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:08:57,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:08:57,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:08:57,957 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:08:57,957 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:08:57,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:08:57,957 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:08:57,958 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:08:57,958 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe08ef78ee5c945bc38e9e915e26405aefe9ffb2d4911c91347e07e6a879dcd5 [2021-11-23 17:08:58,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:08:58,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:08:58,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:08:58,370 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:08:58,371 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:08:58,372 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/heap-data/calendar.i [2021-11-23 17:08:58,431 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/data/437c324ab/e420029eff6c44609ccfd9820c901d30/FLAG22a62049b [2021-11-23 17:08:58,977 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:08:58,977 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/sv-benchmarks/c/heap-data/calendar.i [2021-11-23 17:08:58,994 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/data/437c324ab/e420029eff6c44609ccfd9820c901d30/FLAG22a62049b [2021-11-23 17:08:59,296 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/data/437c324ab/e420029eff6c44609ccfd9820c901d30 [2021-11-23 17:08:59,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:08:59,299 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:08:59,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:08:59,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:08:59,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:08:59,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:08:59" (1/1) ... [2021-11-23 17:08:59,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32a16515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:59, skipping insertion in model container [2021-11-23 17:08:59,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:08:59" (1/1) ... [2021-11-23 17:08:59,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:08:59,358 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:08:59,743 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/sv-benchmarks/c/heap-data/calendar.i[23742,23755] [2021-11-23 17:08:59,748 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:08:59,765 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:08:59,827 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/sv-benchmarks/c/heap-data/calendar.i[23742,23755] [2021-11-23 17:08:59,829 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:08:59,863 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:08:59,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:59 WrapperNode [2021-11-23 17:08:59,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:08:59,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:08:59,866 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:08:59,866 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:08:59,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:59" (1/1) ... [2021-11-23 17:08:59,892 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:59" (1/1) ... [2021-11-23 17:08:59,913 INFO L137 Inliner]: procedures = 124, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 69 [2021-11-23 17:08:59,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:08:59,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:08:59,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:08:59,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:08:59,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:59" (1/1) ... [2021-11-23 17:08:59,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:59" (1/1) ... [2021-11-23 17:08:59,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:59" (1/1) ... [2021-11-23 17:08:59,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:59" (1/1) ... [2021-11-23 17:08:59,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:59" (1/1) ... [2021-11-23 17:08:59,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:59" (1/1) ... [2021-11-23 17:08:59,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:59" (1/1) ... [2021-11-23 17:08:59,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:08:59,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:08:59,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:08:59,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:08:59,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:59" (1/1) ... [2021-11-23 17:08:59,959 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:08:59,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:08:59,983 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:09:00,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:09:00,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 17:09:00,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:09:00,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:09:00,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 17:09:00,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 17:09:00,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:09:00,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:09:00,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:09:00,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:09:00,165 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:09:00,167 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:09:00,517 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:09:00,523 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:09:00,523 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 17:09:00,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:09:00 BoogieIcfgContainer [2021-11-23 17:09:00,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:09:00,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:09:00,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:09:00,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:09:00,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:08:59" (1/3) ... [2021-11-23 17:09:00,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@149ca5ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:09:00, skipping insertion in model container [2021-11-23 17:09:00,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:59" (2/3) ... [2021-11-23 17:09:00,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@149ca5ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:09:00, skipping insertion in model container [2021-11-23 17:09:00,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:09:00" (3/3) ... [2021-11-23 17:09:00,534 INFO L111 eAbstractionObserver]: Analyzing ICFG calendar.i [2021-11-23 17:09:00,539 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:09:00,539 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:09:00,609 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:09:00,624 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 17:09:00,628 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:09:00,645 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 19 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:00,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 17:09:00,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:09:00,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:09:00,654 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:09:00,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:09:00,661 INFO L85 PathProgramCache]: Analyzing trace with hash 2034621548, now seen corresponding path program 1 times [2021-11-23 17:09:00,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:09:00,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566054101] [2021-11-23 17:09:00,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:09:00,679 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:09:00,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:09:00,685 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:09:00,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:09:00,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:09:00,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 17:09:00,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:09:00,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:09:00,861 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:09:00,862 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:09:00,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566054101] [2021-11-23 17:09:00,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566054101] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:09:00,864 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:09:00,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 17:09:00,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736291470] [2021-11-23 17:09:00,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:09:00,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 17:09:00,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:09:00,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 17:09:00,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 17:09:00,917 INFO L87 Difference]: Start difference. First operand has 20 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 19 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:00,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:09:00,934 INFO L93 Difference]: Finished difference Result 34 states and 48 transitions. [2021-11-23 17:09:00,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 17:09:00,936 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-23 17:09:00,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:09:00,943 INFO L225 Difference]: With dead ends: 34 [2021-11-23 17:09:00,944 INFO L226 Difference]: Without dead ends: 17 [2021-11-23 17:09:00,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 17:09:00,951 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:09:00,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 17:09:00,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-23 17:09:00,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-11-23 17:09:00,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:00,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2021-11-23 17:09:00,991 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 23 transitions. Word has length 10 [2021-11-23 17:09:00,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:09:00,992 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 23 transitions. [2021-11-23 17:09:00,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:00,993 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2021-11-23 17:09:00,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 17:09:00,993 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:09:00,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:09:01,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:09:01,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:09:01,208 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:09:01,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:09:01,209 INFO L85 PathProgramCache]: Analyzing trace with hash 2003237146, now seen corresponding path program 1 times [2021-11-23 17:09:01,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:09:01,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861342293] [2021-11-23 17:09:01,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:09:01,210 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:09:01,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:09:01,211 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:09:01,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 17:09:01,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:09:01,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 17:09:01,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:09:01,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:09:01,464 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:09:01,464 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:09:01,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861342293] [2021-11-23 17:09:01,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1861342293] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:09:01,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:09:01,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 17:09:01,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576482980] [2021-11-23 17:09:01,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:09:01,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 17:09:01,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:09:01,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 17:09:01,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 17:09:01,469 INFO L87 Difference]: Start difference. First operand 17 states and 23 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:01,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:09:01,635 INFO L93 Difference]: Finished difference Result 33 states and 45 transitions. [2021-11-23 17:09:01,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 17:09:01,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-23 17:09:01,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:09:01,637 INFO L225 Difference]: With dead ends: 33 [2021-11-23 17:09:01,637 INFO L226 Difference]: Without dead ends: 21 [2021-11-23 17:09:01,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 17:09:01,639 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 5 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 17:09:01,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 56 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 17:09:01,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-23 17:09:01,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-23 17:09:01,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:01,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2021-11-23 17:09:01,646 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 29 transitions. Word has length 11 [2021-11-23 17:09:01,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:09:01,647 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 29 transitions. [2021-11-23 17:09:01,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:01,647 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2021-11-23 17:09:01,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 17:09:01,648 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:09:01,648 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:09:01,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-23 17:09:01,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:09:01,861 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:09:01,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:09:01,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1886754896, now seen corresponding path program 1 times [2021-11-23 17:09:01,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:09:01,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2121210078] [2021-11-23 17:09:01,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:09:01,863 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:09:01,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:09:01,865 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:09:01,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 17:09:01,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:09:01,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 17:09:01,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:09:02,171 INFO L354 Elim1Store]: treesize reduction 74, result has 20.4 percent of original size [2021-11-23 17:09:02,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 26 [2021-11-23 17:09:02,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:09:02,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:09:02,602 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:09:02,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2121210078] [2021-11-23 17:09:02,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2121210078] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:09:02,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:09:02,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 17:09:02,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819691573] [2021-11-23 17:09:02,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:09:02,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 17:09:02,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:09:02,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 17:09:02,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-23 17:09:02,606 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:04,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:09:04,613 INFO L93 Difference]: Finished difference Result 84 states and 117 transitions. [2021-11-23 17:09:04,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-23 17:09:04,614 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-23 17:09:04,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:09:04,615 INFO L225 Difference]: With dead ends: 84 [2021-11-23 17:09:04,615 INFO L226 Difference]: Without dead ends: 74 [2021-11-23 17:09:04,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=203, Invalid=499, Unknown=0, NotChecked=0, Total=702 [2021-11-23 17:09:04,619 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 141 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 17:09:04,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 103 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 17:09:04,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-23 17:09:04,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 25. [2021-11-23 17:09:04,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 24 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:04,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2021-11-23 17:09:04,635 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 15 [2021-11-23 17:09:04,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:09:04,636 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2021-11-23 17:09:04,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:04,636 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2021-11-23 17:09:04,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 17:09:04,637 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:09:04,637 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:09:04,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 17:09:04,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:09:04,838 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:09:04,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:09:04,839 INFO L85 PathProgramCache]: Analyzing trace with hash 696861878, now seen corresponding path program 1 times [2021-11-23 17:09:04,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:09:04,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1911536051] [2021-11-23 17:09:04,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:09:04,840 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:09:04,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:09:04,841 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:09:04,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 17:09:04,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:09:04,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 17:09:04,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:09:05,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 17:09:05,036 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:09:05,037 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:09:05,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1911536051] [2021-11-23 17:09:05,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1911536051] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:09:05,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:09:05,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 17:09:05,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30175858] [2021-11-23 17:09:05,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:09:05,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 17:09:05,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:09:05,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 17:09:05,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 17:09:05,040 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:05,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:09:05,256 INFO L93 Difference]: Finished difference Result 48 states and 63 transitions. [2021-11-23 17:09:05,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 17:09:05,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-23 17:09:05,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:09:05,259 INFO L225 Difference]: With dead ends: 48 [2021-11-23 17:09:05,259 INFO L226 Difference]: Without dead ends: 36 [2021-11-23 17:09:05,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-23 17:09:05,261 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 18 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 17:09:05,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 56 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 17:09:05,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-11-23 17:09:05,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2021-11-23 17:09:05,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 27 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:05,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2021-11-23 17:09:05,270 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 37 transitions. Word has length 17 [2021-11-23 17:09:05,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:09:05,272 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 37 transitions. [2021-11-23 17:09:05,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:05,273 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2021-11-23 17:09:05,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 17:09:05,274 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:09:05,274 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:09:05,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 17:09:05,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:09:05,475 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:09:05,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:09:05,476 INFO L85 PathProgramCache]: Analyzing trace with hash 696921460, now seen corresponding path program 1 times [2021-11-23 17:09:05,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:09:05,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [939755395] [2021-11-23 17:09:05,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:09:05,476 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:09:05,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:09:05,478 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:09:05,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 17:09:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:09:05,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 17:09:05,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:09:05,685 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 17:09:05,685 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:09:05,688 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:09:05,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [939755395] [2021-11-23 17:09:05,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [939755395] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:09:05,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:09:05,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 17:09:05,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28512838] [2021-11-23 17:09:05,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:09:05,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 17:09:05,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:09:05,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 17:09:05,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 17:09:05,691 INFO L87 Difference]: Start difference. First operand 28 states and 37 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:05,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:09:05,943 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2021-11-23 17:09:05,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 17:09:05,944 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-23 17:09:05,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:09:05,944 INFO L225 Difference]: With dead ends: 38 [2021-11-23 17:09:05,945 INFO L226 Difference]: Without dead ends: 36 [2021-11-23 17:09:05,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-23 17:09:05,946 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 15 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 17:09:05,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 66 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 17:09:05,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-11-23 17:09:05,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2021-11-23 17:09:05,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 29 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:05,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2021-11-23 17:09:05,953 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 17 [2021-11-23 17:09:05,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:09:05,954 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-11-23 17:09:05,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:05,954 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2021-11-23 17:09:05,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 17:09:05,955 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:09:05,955 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:09:05,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-23 17:09:06,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:09:06,168 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:09:06,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:09:06,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1823098056, now seen corresponding path program 1 times [2021-11-23 17:09:06,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:09:06,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092592277] [2021-11-23 17:09:06,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:09:06,169 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:09:06,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:09:06,170 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:09:06,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-23 17:09:06,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:09:06,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 17:09:06,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:09:06,343 INFO L354 Elim1Store]: treesize reduction 74, result has 20.4 percent of original size [2021-11-23 17:09:06,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 26 [2021-11-23 17:09:06,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:09:06,713 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:09:06,713 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:09:06,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092592277] [2021-11-23 17:09:06,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092592277] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:09:06,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:09:06,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 17:09:06,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447227847] [2021-11-23 17:09:06,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:09:06,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 17:09:06,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:09:06,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 17:09:06,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-23 17:09:06,716 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:07,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:09:07,934 INFO L93 Difference]: Finished difference Result 72 states and 89 transitions. [2021-11-23 17:09:07,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-23 17:09:07,935 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-23 17:09:07,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:09:07,936 INFO L225 Difference]: With dead ends: 72 [2021-11-23 17:09:07,936 INFO L226 Difference]: Without dead ends: 70 [2021-11-23 17:09:07,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2021-11-23 17:09:07,938 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 83 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 17:09:07,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 77 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 17:09:07,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-23 17:09:07,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 33. [2021-11-23 17:09:07,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:07,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2021-11-23 17:09:07,946 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 17 [2021-11-23 17:09:07,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:09:07,946 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2021-11-23 17:09:07,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:07,946 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2021-11-23 17:09:07,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 17:09:07,947 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:09:07,947 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:09:07,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-23 17:09:08,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:09:08,166 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:09:08,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:09:08,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1360225156, now seen corresponding path program 1 times [2021-11-23 17:09:08,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:09:08,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [383239412] [2021-11-23 17:09:08,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:09:08,167 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:09:08,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:09:08,168 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:09:08,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-23 17:09:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:09:08,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 17:09:08,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:09:08,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:08,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:08,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-23 17:09:08,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-23 17:09:08,447 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:09:08,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:09:08,574 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:09:08,574 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:09:08,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [383239412] [2021-11-23 17:09:08,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [383239412] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:09:08,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1342364206] [2021-11-23 17:09:08,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:09:08,575 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:09:08,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:09:08,577 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:09:08,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-23 17:09:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:09:08,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-23 17:09:08,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:09:08,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:08,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:08,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-23 17:09:08,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-23 17:09:08,982 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:09:08,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:09:09,098 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:09:09,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1342364206] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:09:09,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984343568] [2021-11-23 17:09:09,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:09:09,099 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:09:09,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:09:09,100 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:09:09,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-23 17:09:09,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:09:09,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 17:09:09,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:09:09,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:09,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:09,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-23 17:09:09,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-23 17:09:09,319 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:09:09,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:09:09,463 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:09:09,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984343568] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:09:09,464 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 17:09:09,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 8 [2021-11-23 17:09:09,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96502578] [2021-11-23 17:09:09,464 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 17:09:09,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 17:09:09,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:09:09,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 17:09:09,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-23 17:09:09,466 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:09,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:09:09,982 INFO L93 Difference]: Finished difference Result 65 states and 83 transitions. [2021-11-23 17:09:09,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 17:09:09,989 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-23 17:09:09,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:09:09,990 INFO L225 Difference]: With dead ends: 65 [2021-11-23 17:09:09,991 INFO L226 Difference]: Without dead ends: 37 [2021-11-23 17:09:09,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-23 17:09:09,992 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 18 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 17:09:09,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 134 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 17:09:09,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-11-23 17:09:09,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-11-23 17:09:09,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 36 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:09,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 49 transitions. [2021-11-23 17:09:09,999 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 49 transitions. Word has length 23 [2021-11-23 17:09:09,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:09:10,000 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 49 transitions. [2021-11-23 17:09:10,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:10,000 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2021-11-23 17:09:10,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 17:09:10,001 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:09:10,001 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:09:10,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-23 17:09:10,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-23 17:09:10,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-11-23 17:09:10,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt [2021-11-23 17:09:10,606 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:09:10,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:09:10,606 INFO L85 PathProgramCache]: Analyzing trace with hash 866654898, now seen corresponding path program 2 times [2021-11-23 17:09:10,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:09:10,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1818820462] [2021-11-23 17:09:10,607 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 17:09:10,607 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:09:10,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:09:10,608 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:09:10,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-23 17:09:10,769 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 17:09:10,770 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:09:10,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-23 17:09:10,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:09:10,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:09:10,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:09:11,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:09:11,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 48 [2021-11-23 17:09:11,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:11,086 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-23 17:09:11,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 20 [2021-11-23 17:09:11,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:11,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 57 [2021-11-23 17:09:11,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 15 treesize of output 7 [2021-11-23 17:09:11,856 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:09:11,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:09:12,247 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_16| (_ BitVec 32)) (v_ArrVal_190 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_16| v_ArrVal_190) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_16|))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32)))))) is different from false [2021-11-23 17:09:12,439 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-23 17:09:12,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 1 [2021-11-23 17:09:12,448 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-11-23 17:09:12,449 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:09:12,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1818820462] [2021-11-23 17:09:12,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1818820462] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:09:12,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1183842552] [2021-11-23 17:09:12,449 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 17:09:12,449 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:09:12,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:09:12,465 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:09:12,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-23 17:09:12,691 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 17:09:12,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:09:12,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-23 17:09:12,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:09:12,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:09:12,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:09:12,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:09:12,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2021-11-23 17:09:12,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:12,941 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-23 17:09:12,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 18 [2021-11-23 17:09:12,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:13,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2021-11-23 17:09:13,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 15 treesize of output 7 [2021-11-23 17:09:13,595 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:09:13,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:09:13,780 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_234 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_19| (_ BitVec 32))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_19| v_ArrVal_234) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_19|)))))))))) is different from false [2021-11-23 17:09:13,911 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-11-23 17:09:13,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1183842552] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:09:13,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249048839] [2021-11-23 17:09:13,911 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 17:09:13,912 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:09:13,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:09:13,917 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:09:13,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-23 17:09:14,025 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 17:09:14,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:09:14,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 17:09:14,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:09:14,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:09:14,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:09:14,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:14,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:14,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:09:14,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2021-11-23 17:09:14,187 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-23 17:09:14,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2021-11-23 17:09:14,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2021-11-23 17:09:14,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 15 treesize of output 7 [2021-11-23 17:09:14,576 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:09:14,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:09:14,765 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_22| (_ BitVec 32)) (v_ArrVal_280 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_22| v_ArrVal_280) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv1 32) (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv3 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_22|))))))) is different from false [2021-11-23 17:09:14,888 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-11-23 17:09:14,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249048839] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:09:14,889 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 17:09:14,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9, 9, 9, 9] total 24 [2021-11-23 17:09:14,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179277353] [2021-11-23 17:09:14,890 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 17:09:14,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-23 17:09:14,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:09:14,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-23 17:09:14,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=359, Unknown=3, NotChecked=120, Total=552 [2021-11-23 17:09:14,892 INFO L87 Difference]: Start difference. First operand 37 states and 49 transitions. Second operand has 24 states, 24 states have (on average 3.6666666666666665) internal successors, (88), 24 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:21,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:09:21,581 INFO L93 Difference]: Finished difference Result 130 states and 159 transitions. [2021-11-23 17:09:21,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-23 17:09:21,581 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.6666666666666665) internal successors, (88), 24 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-23 17:09:21,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:09:21,583 INFO L225 Difference]: With dead ends: 130 [2021-11-23 17:09:21,583 INFO L226 Difference]: Without dead ends: 115 [2021-11-23 17:09:21,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 139 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 671 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=804, Invalid=2067, Unknown=3, NotChecked=318, Total=3192 [2021-11-23 17:09:21,586 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 559 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 162 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-23 17:09:21,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [559 Valid, 205 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 156 Invalid, 0 Unknown, 162 Unchecked, 1.4s Time] [2021-11-23 17:09:21,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-11-23 17:09:21,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 45. [2021-11-23 17:09:21,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.3181818181818181) internal successors, (58), 44 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:21,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 58 transitions. [2021-11-23 17:09:21,596 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 58 transitions. Word has length 27 [2021-11-23 17:09:21,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:09:21,596 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 58 transitions. [2021-11-23 17:09:21,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.6666666666666665) internal successors, (88), 24 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:21,597 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 58 transitions. [2021-11-23 17:09:21,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 17:09:21,598 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:09:21,598 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:09:21,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-23 17:09:21,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-11-23 17:09:22,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-23 17:09:22,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:09:22,206 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:09:22,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:09:22,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1408314650, now seen corresponding path program 1 times [2021-11-23 17:09:22,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:09:22,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109971123] [2021-11-23 17:09:22,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:09:22,207 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:09:22,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:09:22,207 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:09:22,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-23 17:09:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:09:22,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-23 17:09:22,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:09:22,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:09:22,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:22,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:22,609 INFO L354 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2021-11-23 17:09:22,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 48 [2021-11-23 17:09:23,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 55 [2021-11-23 17:09:23,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-23 17:09:23,735 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:09:23,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:09:24,280 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_25| (_ BitVec 32)) (v_ArrVal_325 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_25| v_ArrVal_325) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 32) (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (select v_ArrVal_325 (_ bv4 32)) (_ bv1 32))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|))))))) is different from false [2021-11-23 17:09:24,394 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-23 17:09:24,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 1 [2021-11-23 17:09:24,402 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-11-23 17:09:24,402 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:09:24,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2109971123] [2021-11-23 17:09:24,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2109971123] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:09:24,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1581430091] [2021-11-23 17:09:24,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:09:24,403 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:09:24,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:09:24,407 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:09:24,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-11-23 17:09:24,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:09:24,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-23 17:09:24,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:09:24,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:09:24,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:09:24,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:09:24,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2021-11-23 17:09:24,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:24,799 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-23 17:09:24,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2021-11-23 17:09:24,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:25,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-23 17:09:25,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2021-11-23 17:09:25,357 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:09:25,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:09:25,612 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_372 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_28| (_ BitVec 32))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_28| v_ArrVal_372) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_28|))))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv2 32)))))) is different from false [2021-11-23 17:09:25,713 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-11-23 17:09:25,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1581430091] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:09:25,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791451354] [2021-11-23 17:09:25,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:09:25,714 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:09:25,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:09:25,720 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:09:25,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-23 17:09:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:09:25,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 17:09:25,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:09:25,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:09:25,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:09:25,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:25,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:25,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:09:25,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2021-11-23 17:09:26,019 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-23 17:09:26,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2021-11-23 17:09:26,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-23 17:09:26,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2021-11-23 17:09:26,441 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:09:26,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:09:26,638 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_421 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_31| (_ BitVec 32))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_31| v_ArrVal_421) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_31|)))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|))))))) is different from false [2021-11-23 17:09:26,761 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-11-23 17:09:26,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791451354] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:09:26,762 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 17:09:26,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 9, 9, 9, 9] total 29 [2021-11-23 17:09:26,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315463490] [2021-11-23 17:09:26,762 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 17:09:26,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-23 17:09:26,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:09:26,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-23 17:09:26,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=565, Unknown=3, NotChecked=150, Total=812 [2021-11-23 17:09:26,765 INFO L87 Difference]: Start difference. First operand 45 states and 58 transitions. Second operand has 29 states, 29 states have (on average 3.413793103448276) internal successors, (99), 29 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:27,273 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~l~0#1.base|))) (let ((.cse1 (select .cse2 (_ bv4 32)))) (and (forall ((v_ArrVal_372 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_28| (_ BitVec 32))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_28| v_ArrVal_372) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_28|))))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv2 32)))))) (not (bvsgt .cse1 (_ bv3 32))) (or (not (= .cse1 (_ bv0 32))) (not (= (_ bv2 32) (select .cse2 (_ bv8 32))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~l~0#1.base|)))) (_ bv1 1))) (= |c_ULTIMATE.start_main_~l~0#1.offset| (_ bv0 32)) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_25| (_ BitVec 32)) (v_ArrVal_325 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_25| v_ArrVal_325) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 32) (select .cse3 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (select v_ArrVal_325 (_ bv4 32)) (_ bv1 32))) (not (= (_ bv2 32) (select .cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|))))))) (not (bvslt .cse1 (_ bv0 32))) (not (bvslt |c_ULTIMATE.start_main_~ev1~0#1| (_ bv0 32))) (not (bvsgt |c_ULTIMATE.start_main_~ev1~0#1| (_ bv3 32))) (forall ((v_ArrVal_421 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_31| (_ BitVec 32))) (let ((.cse4 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_31| v_ArrVal_421) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse4 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_31|)))) (not (= (_ bv2 32) (select .cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))))))))) is different from false [2021-11-23 17:09:27,284 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~l~0#1.base|))) (let ((.cse1 (select .cse2 (_ bv4 32)))) (and (forall ((v_ArrVal_372 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_28| (_ BitVec 32))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_28| v_ArrVal_372) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_28|))))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv2 32)))))) (not (bvsgt .cse1 (_ bv3 32))) (or (not (= .cse1 (_ bv0 32))) (not (= (_ bv2 32) (select .cse2 (_ bv8 32))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~l~0#1.base|)))) (_ bv1 1))) (= |c_ULTIMATE.start_main_~l~0#1.offset| (_ bv0 32)) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_25| (_ BitVec 32)) (v_ArrVal_325 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_25| v_ArrVal_325) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 32) (select .cse3 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (select v_ArrVal_325 (_ bv4 32)) (_ bv1 32))) (not (= (_ bv2 32) (select .cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|))))))) (not (bvslt .cse1 (_ bv0 32))) (forall ((v_ArrVal_421 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_31| (_ BitVec 32))) (let ((.cse4 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_31| v_ArrVal_421) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse4 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_31|)))) (not (= (_ bv2 32) (select .cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))))))))) is different from false [2021-11-23 17:09:27,299 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse12 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32)))) (let ((.cse11 (select |c_#memory_int| .cse12))) (let ((.cse9 (select .cse11 (_ bv4 32))) (.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~l~0#1.base|))) (let ((.cse1 (select .cse2 (_ bv4 32))) (.cse4 (= .cse12 |c_ULTIMATE.start_main_~l~0#1.base|)) (.cse5 (not (= .cse9 (_ bv0 32)))) (.cse6 (not (= (_ bv2 32) (select .cse11 (_ bv8 32)))))) (and (forall ((v_ArrVal_372 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_28| (_ BitVec 32))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_28| v_ArrVal_372) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_28|))))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv2 32)))))) (not (bvsgt .cse1 (_ bv3 32))) (or (not (= .cse1 (_ bv0 32))) (not (= (_ bv2 32) (select .cse2 (_ bv8 32))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~l~0#1.base|)))) (_ bv1 1))) (= |c_ULTIMATE.start_main_~l~0#1.offset| (_ bv0 32)) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_25| (_ BitVec 32)) (v_ArrVal_325 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_25| v_ArrVal_325) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 32) (select .cse3 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (select v_ArrVal_325 (_ bv4 32)) (_ bv1 32))) (not (= (_ bv2 32) (select .cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|))))))) (not .cse4) (not (bvslt .cse1 (_ bv0 32))) (or .cse5 .cse6) (let ((.cse7 (not (bvslt .cse9 (_ bv0 32)))) (.cse8 (not (bvsgt .cse9 (_ bv3 32))))) (or .cse4 (and .cse7 .cse5 .cse8) (and .cse7 .cse8 .cse6))) (forall ((v_ArrVal_421 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_31| (_ BitVec 32))) (let ((.cse10 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_31| v_ArrVal_421) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse10 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_31|)))) (not (= (_ bv2 32) (select .cse10 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|))))))) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32)) (_ bv0 32))))))) is different from false [2021-11-23 17:09:33,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 17:09:34,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:09:34,785 INFO L93 Difference]: Finished difference Result 125 states and 157 transitions. [2021-11-23 17:09:34,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-23 17:09:34,786 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.413793103448276) internal successors, (99), 29 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-23 17:09:34,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:09:34,788 INFO L225 Difference]: With dead ends: 125 [2021-11-23 17:09:34,788 INFO L226 Difference]: Without dead ends: 123 [2021-11-23 17:09:34,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 144 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=633, Invalid=2355, Unknown=6, NotChecked=666, Total=3660 [2021-11-23 17:09:34,791 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 165 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 66 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 276 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:09:34,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 242 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 323 Invalid, 1 Unknown, 276 Unchecked, 3.0s Time] [2021-11-23 17:09:34,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-11-23 17:09:34,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 70. [2021-11-23 17:09:34,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.3478260869565217) internal successors, (93), 69 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:34,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 93 transitions. [2021-11-23 17:09:34,808 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 93 transitions. Word has length 29 [2021-11-23 17:09:34,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:09:34,809 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 93 transitions. [2021-11-23 17:09:34,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.413793103448276) internal successors, (99), 29 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:34,809 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 93 transitions. [2021-11-23 17:09:34,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 17:09:34,811 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:09:34,811 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:09:34,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-23 17:09:35,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-23 17:09:35,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2021-11-23 17:09:35,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt [2021-11-23 17:09:35,433 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:09:35,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:09:35,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1544788995, now seen corresponding path program 1 times [2021-11-23 17:09:35,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:09:35,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [401237873] [2021-11-23 17:09:35,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:09:35,434 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:09:35,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:09:35,435 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:09:35,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-23 17:09:35,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:09:35,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-23 17:09:35,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:09:35,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:09:35,688 INFO L354 Elim1Store]: treesize reduction 74, result has 20.4 percent of original size [2021-11-23 17:09:35,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 26 [2021-11-23 17:09:35,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:35,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:09:35,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 60 [2021-11-23 17:09:35,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:35,830 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-23 17:09:35,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2021-11-23 17:09:36,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 65 [2021-11-23 17:09:36,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 65 treesize of output 45 [2021-11-23 17:09:36,466 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 17:09:36,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:09:36,780 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_34| (_ BitVec 32)) (v_ArrVal_467 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_34| v_ArrVal_467) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_34|))))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|))))))) is different from false [2021-11-23 17:09:36,894 INFO L354 Elim1Store]: treesize reduction 106, result has 0.9 percent of original size [2021-11-23 17:09:36,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 1 [2021-11-23 17:09:36,903 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 4 not checked. [2021-11-23 17:09:36,903 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:09:36,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [401237873] [2021-11-23 17:09:36,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [401237873] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:09:36,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [33636895] [2021-11-23 17:09:36,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:09:36,904 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:09:36,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:09:36,910 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:09:36,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-11-23 17:09:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:09:37,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-23 17:09:37,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:09:37,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:09:37,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:09:37,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:09:37,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2021-11-23 17:09:37,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:37,265 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-23 17:09:37,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 20 [2021-11-23 17:09:37,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:37,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-23 17:09:37,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2021-11-23 17:09:37,793 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 17:09:37,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:09:37,973 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_37| (_ BitVec 32)) (v_ArrVal_510 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_37| v_ArrVal_510) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_37|))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|))))))) is different from false [2021-11-23 17:09:38,066 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 4 not checked. [2021-11-23 17:09:38,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [33636895] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:09:38,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988307847] [2021-11-23 17:09:38,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:09:38,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:09:38,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:09:38,068 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:09:38,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-23 17:09:38,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:09:38,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 17:09:38,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:09:38,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:09:38,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:09:38,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:38,327 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-23 17:09:38,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 18 [2021-11-23 17:09:38,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2021-11-23 17:09:38,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:38,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2021-11-23 17:09:38,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 15 treesize of output 7 [2021-11-23 17:09:38,812 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 17:09:38,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:09:38,984 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_555 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_40| (_ BitVec 32))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_40| v_ArrVal_555) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv2 32))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_40|))))))) is different from false [2021-11-23 17:09:39,071 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 4 not checked. [2021-11-23 17:09:39,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988307847] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:09:39,071 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 17:09:39,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9, 9, 9, 9] total 24 [2021-11-23 17:09:39,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903410331] [2021-11-23 17:09:39,071 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 17:09:39,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-23 17:09:39,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:09:39,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-23 17:09:39,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=367, Unknown=3, NotChecked=120, Total=552 [2021-11-23 17:09:39,073 INFO L87 Difference]: Start difference. First operand 70 states and 93 transitions. Second operand has 24 states, 24 states have (on average 4.25) internal successors, (102), 24 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:45,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:09:45,580 INFO L93 Difference]: Finished difference Result 132 states and 165 transitions. [2021-11-23 17:09:45,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-23 17:09:45,581 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.25) internal successors, (102), 24 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-23 17:09:45,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:09:45,582 INFO L225 Difference]: With dead ends: 132 [2021-11-23 17:09:45,582 INFO L226 Difference]: Without dead ends: 130 [2021-11-23 17:09:45,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 159 SyntacticMatches, 5 SemanticMatches, 46 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=559, Invalid=1430, Unknown=3, NotChecked=264, Total=2256 [2021-11-23 17:09:45,583 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 296 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 118 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-23 17:09:45,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 188 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 152 Invalid, 0 Unknown, 118 Unchecked, 1.5s Time] [2021-11-23 17:09:45,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-11-23 17:09:45,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 48. [2021-11-23 17:09:45,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 47 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:45,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 62 transitions. [2021-11-23 17:09:45,595 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 62 transitions. Word has length 31 [2021-11-23 17:09:45,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:09:45,595 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 62 transitions. [2021-11-23 17:09:45,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.25) internal successors, (102), 24 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:45,596 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 62 transitions. [2021-11-23 17:09:45,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 17:09:45,597 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:09:45,597 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:09:45,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2021-11-23 17:09:45,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-23 17:09:46,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-23 17:09:46,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:09:46,201 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:09:46,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:09:46,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1565549346, now seen corresponding path program 3 times [2021-11-23 17:09:46,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:09:46,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115740338] [2021-11-23 17:09:46,201 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 17:09:46,202 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:09:46,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:09:46,202 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:09:46,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-23 17:09:46,357 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-23 17:09:46,357 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:09:46,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-23 17:09:46,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:09:46,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:46,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:46,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:09:46,466 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-23 17:09:46,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 24 [2021-11-23 17:09:46,486 INFO L354 Elim1Store]: treesize reduction 22, result has 43.6 percent of original size [2021-11-23 17:09:46,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 31 [2021-11-23 17:09:46,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-11-23 17:09:47,378 INFO L354 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2021-11-23 17:09:47,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 79 treesize of output 57 [2021-11-23 17:09:47,394 INFO L354 Elim1Store]: treesize reduction 26, result has 10.3 percent of original size [2021-11-23 17:09:47,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 26 [2021-11-23 17:09:47,534 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:09:47,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:09:47,840 INFO L354 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2021-11-23 17:09:47,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 23 [2021-11-23 17:09:48,178 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:09:48,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 55 [2021-11-23 17:09:48,189 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:09:48,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 49 [2021-11-23 17:09:48,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:48,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:48,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:48,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:48,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:49,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:49,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:49,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:49,279 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_44| (_ BitVec 32)) (v_arrayElimArr_5 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_6 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_44| v_arrayElimArr_5) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_44| v_arrayElimArr_6) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_6 (_ bv0 32)))) (and (= .cse0 (_ bv0 32)) (= .cse1 (_ bv0 32))) (and (= |c_ULTIMATE.start_main_~l~0#1.base| .cse0) (= .cse1 |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select v_arrayElimArr_5 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|))))) is different from false [2021-11-23 17:09:49,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:49,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:49,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:49,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:49,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:50,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:50,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:50,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:50,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:50,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:50,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:50,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:50,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:50,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:51,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:51,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:51,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:51,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:51,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:51,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:51,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:51,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:52,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:52,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:52,235 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:09:52,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 111 treesize of output 97 [2021-11-23 17:09:52,244 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:09:52,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 73 [2021-11-23 17:09:52,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 89 [2021-11-23 17:09:52,273 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 17:09:52,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 81 [2021-11-23 17:09:52,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 65 [2021-11-23 17:09:52,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 54 treesize of output 40 [2021-11-23 17:09:52,335 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 6 not checked. [2021-11-23 17:09:52,335 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:09:52,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [115740338] [2021-11-23 17:09:52,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [115740338] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:09:52,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [245421379] [2021-11-23 17:09:52,335 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 17:09:52,336 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:09:52,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:09:52,337 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:09:52,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-11-23 17:09:52,646 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-23 17:09:52,646 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:09:52,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-23 17:09:52,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:09:52,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:09:52,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:52,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:52,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:09:52,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:09:52,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:09:52,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-11-23 17:09:52,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:09:52,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-23 17:09:52,859 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-23 17:09:52,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2021-11-23 17:09:53,365 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 17:09:53,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 36 [2021-11-23 17:09:53,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 10 [2021-11-23 17:09:53,434 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:09:53,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:09:53,729 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:09:53,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2021-11-23 17:09:53,736 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:09:53,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 28 [2021-11-23 17:09:53,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:53,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:53,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:53,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:53,876 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_49| (_ BitVec 32)) (v_arrayElimArr_11 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_12 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (select v_arrayElimArr_11 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (and (= (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_49| v_arrayElimArr_12) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|) (_ bv0 32)) (= (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_49| v_arrayElimArr_11) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|) (_ bv0 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_49|))) (not (= (select v_arrayElimArr_12 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)))) is different from false [2021-11-23 17:09:53,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:53,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:53,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:53,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:54,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:54,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:54,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:54,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:54,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:54,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:54,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:54,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:54,454 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:09:54,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 56 [2021-11-23 17:09:54,464 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:09:54,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 42 [2021-11-23 17:09:54,468 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:09:54,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 23 [2021-11-23 17:09:54,473 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:09:54,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2021-11-23 17:09:54,496 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 6 not checked. [2021-11-23 17:09:54,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [245421379] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:09:54,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709915953] [2021-11-23 17:09:54,496 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 17:09:54,496 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:09:54,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:09:54,505 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:09:54,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-23 17:09:54,638 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-23 17:09:54,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:09:54,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-23 17:09:54,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:09:54,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:09:54,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:54,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:09:54,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:09:54,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:09:54,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:09:54,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-11-23 17:09:54,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:09:54,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-23 17:09:54,848 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-23 17:09:54,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2021-11-23 17:09:55,398 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 17:09:55,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 36 [2021-11-23 17:09:55,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 10 [2021-11-23 17:09:55,417 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:09:55,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:09:55,598 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:09:55,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2021-11-23 17:09:55,608 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:09:55,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 28 [2021-11-23 17:09:55,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:55,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:55,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:55,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:55,836 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.offset_54| (_ BitVec 32)) (v_arrayElimArr_18 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_54| (_ BitVec 32)) (v_arrayElimArr_17 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (select v_arrayElimArr_17 |v_ULTIMATE.start_main_~l~0#1.offset_54|) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_54|)))) (and (= (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_54| v_arrayElimArr_18) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|) (_ bv0 32)) (= (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_54| v_arrayElimArr_17) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|) (_ bv0 32))) (not (= (select v_arrayElimArr_18 |v_ULTIMATE.start_main_~l~0#1.offset_54|) |c_ULTIMATE.start_main_~l~0#1.offset|)))) is different from false [2021-11-23 17:09:55,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:55,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:55,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:56,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:56,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:56,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:56,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:56,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:56,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:56,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:56,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:56,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:09:56,487 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:09:56,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 56 [2021-11-23 17:09:56,498 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:09:56,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 42 [2021-11-23 17:09:56,503 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:09:56,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 23 [2021-11-23 17:09:56,510 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:09:56,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2021-11-23 17:09:56,537 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 6 not checked. [2021-11-23 17:09:56,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709915953] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:09:56,537 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 17:09:56,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 8, 8, 8, 8] total 36 [2021-11-23 17:09:56,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245092462] [2021-11-23 17:09:56,538 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 17:09:56,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-11-23 17:09:56,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:09:56,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-11-23 17:09:56,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=944, Unknown=3, NotChecked=192, Total=1260 [2021-11-23 17:09:56,540 INFO L87 Difference]: Start difference. First operand 48 states and 62 transitions. Second operand has 36 states, 36 states have (on average 3.8333333333333335) internal successors, (138), 36 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:57,063 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|)) (.cse3 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~l~0#1.base|))) (and (forall ((|v_ULTIMATE.start_main_~l~0#1.base_49| (_ BitVec 32)) (v_arrayElimArr_11 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_12 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (select v_arrayElimArr_11 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (and (= (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_49| v_arrayElimArr_12) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|) (_ bv0 32)) (= (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_49| v_arrayElimArr_11) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|) (_ bv0 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_49|))) (not (= (select v_arrayElimArr_12 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)))) (= (select .cse0 (_ bv0 32)) (_ bv0 32)) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_44| (_ BitVec 32)) (v_arrayElimArr_5 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_6 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_44| v_arrayElimArr_5) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse2 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_44| v_arrayElimArr_6) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_6 (_ bv0 32)))) (and (= .cse1 (_ bv0 32)) (= .cse2 (_ bv0 32))) (and (= |c_ULTIMATE.start_main_~l~0#1.base| .cse1) (= .cse2 |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select v_arrayElimArr_5 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~l~0#1.base|)))) (_ bv1 1))) (= |c_ULTIMATE.start_main_~l~0#1.offset| (_ bv0 32)) (forall ((|v_ULTIMATE.start_main_~l~0#1.offset_54| (_ BitVec 32)) (v_arrayElimArr_18 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_54| (_ BitVec 32)) (v_arrayElimArr_17 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (select v_arrayElimArr_17 |v_ULTIMATE.start_main_~l~0#1.offset_54|) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_54|)))) (and (= (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_54| v_arrayElimArr_18) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|) (_ bv0 32)) (= (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_54| v_arrayElimArr_17) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|) (_ bv0 32))) (not (= (select v_arrayElimArr_18 |v_ULTIMATE.start_main_~l~0#1.offset_54|) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (= (select .cse3 |c_ULTIMATE.start_main_~l~0#1.offset|) (_ bv0 32)) (= (select .cse0 |c_ULTIMATE.start_main_~l~0#1.offset|) (_ bv0 32)) (= (select .cse3 (_ bv0 32)) (_ bv0 32)))) is different from false [2021-11-23 17:09:59,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:09:59,674 INFO L93 Difference]: Finished difference Result 105 states and 132 transitions. [2021-11-23 17:09:59,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-23 17:09:59,675 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 3.8333333333333335) internal successors, (138), 36 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-23 17:09:59,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:09:59,676 INFO L225 Difference]: With dead ends: 105 [2021-11-23 17:09:59,676 INFO L226 Difference]: Without dead ends: 60 [2021-11-23 17:09:59,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 171 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=378, Invalid=1986, Unknown=4, NotChecked=388, Total=2756 [2021-11-23 17:09:59,678 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 159 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 255 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-23 17:09:59,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 428 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 207 Invalid, 0 Unknown, 255 Unchecked, 1.5s Time] [2021-11-23 17:09:59,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-11-23 17:09:59,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 52. [2021-11-23 17:09:59,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 51 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:59,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 68 transitions. [2021-11-23 17:09:59,691 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 68 transitions. Word has length 35 [2021-11-23 17:09:59,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:09:59,691 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 68 transitions. [2021-11-23 17:09:59,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.8333333333333335) internal successors, (138), 36 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:59,692 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 68 transitions. [2021-11-23 17:09:59,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 17:09:59,693 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:09:59,693 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:09:59,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-23 17:09:59,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-23 17:10:00,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2021-11-23 17:10:00,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt [2021-11-23 17:10:00,302 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:10:00,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:10:00,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1234417279, now seen corresponding path program 1 times [2021-11-23 17:10:00,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:10:00,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566331157] [2021-11-23 17:10:00,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:10:00,303 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:10:00,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:10:00,304 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:10:00,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-23 17:10:00,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:10:00,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-23 17:10:00,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:10:00,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:10:00,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:10:00,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:10:00,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:10:00,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:10:00,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:10:00,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-11-23 17:10:00,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:10:00,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-23 17:10:00,646 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-23 17:10:00,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2021-11-23 17:10:00,980 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 17:10:00,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 36 [2021-11-23 17:10:00,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 10 [2021-11-23 17:10:01,016 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 17:10:01,017 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:10:01,235 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:10:01,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2021-11-23 17:10:01,249 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:10:01,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 28 [2021-11-23 17:10:01,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:01,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:01,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:01,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:01,417 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_59| (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.offset_59| (_ BitVec 32)) (v_arrayElimArr_23 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_24 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_23 |v_ULTIMATE.start_main_~l~0#1.offset_59|))) (not (= (select v_arrayElimArr_24 |v_ULTIMATE.start_main_~l~0#1.offset_59|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_59|))))) (and (= (_ bv0 32) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_59| v_arrayElimArr_23) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (= (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_59| v_arrayElimArr_24) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|) (_ bv0 32))))) is different from false [2021-11-23 17:10:01,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:01,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:01,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:01,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:01,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:01,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:01,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:01,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:01,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:01,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:01,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:01,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:02,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:02,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:02,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:02,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:02,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:02,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:02,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:02,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:02,512 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:10:02,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 56 [2021-11-23 17:10:02,522 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:10:02,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 42 [2021-11-23 17:10:02,526 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:10:02,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 23 [2021-11-23 17:10:02,532 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:10:02,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2021-11-23 17:10:02,554 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 9 not checked. [2021-11-23 17:10:02,554 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:10:02,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566331157] [2021-11-23 17:10:02,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566331157] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:10:02,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1366451798] [2021-11-23 17:10:02,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:10:02,555 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:10:02,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:10:02,555 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:10:02,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2021-11-23 17:10:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:10:02,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-23 17:10:02,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:10:02,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:10:02,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:10:02,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:10:02,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:10:02,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:10:02,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2021-11-23 17:10:02,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:10:02,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-11-23 17:10:02,975 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-23 17:10:02,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 20 [2021-11-23 17:10:02,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-11-23 17:10:03,542 INFO L354 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2021-11-23 17:10:03,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 35 [2021-11-23 17:10:03,555 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-23 17:10:03,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2021-11-23 17:10:03,570 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 17:10:03,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:10:03,730 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:10:03,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2021-11-23 17:10:03,740 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:10:03,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 28 [2021-11-23 17:10:03,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:03,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:03,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:03,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:03,897 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_64| (_ BitVec 32)) (v_arrayElimArr_29 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_28 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (select v_arrayElimArr_28 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (and (= (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_64| v_arrayElimArr_29) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|) (_ bv0 32)) (= (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_64| v_arrayElimArr_28) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|) (_ bv0 32))) (not (= (select v_arrayElimArr_29 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_64|)))))) is different from false [2021-11-23 17:10:03,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:03,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:03,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:04,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:04,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:04,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:04,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:04,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:04,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:04,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:04,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:04,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:04,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:04,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:04,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:04,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:04,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:04,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:04,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:04,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:04,745 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:10:04,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 56 [2021-11-23 17:10:04,753 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:10:04,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 42 [2021-11-23 17:10:04,757 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:10:04,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 23 [2021-11-23 17:10:04,762 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:10:04,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2021-11-23 17:10:04,786 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 9 not checked. [2021-11-23 17:10:04,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1366451798] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:10:04,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576975696] [2021-11-23 17:10:04,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:10:04,787 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:10:04,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:10:04,787 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:10:04,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-23 17:10:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:10:04,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-23 17:10:04,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:10:04,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:10:04,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:10:04,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:10:04,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:10:04,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:10:04,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:10:04,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-11-23 17:10:05,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:10:05,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-23 17:10:05,014 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-23 17:10:05,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 19 [2021-11-23 17:10:05,306 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 17:10:05,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 36 [2021-11-23 17:10:05,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 10 [2021-11-23 17:10:05,321 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 17:10:05,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:10:05,465 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:10:05,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2021-11-23 17:10:05,474 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:10:05,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 28 [2021-11-23 17:10:05,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:05,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:05,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:05,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:05,661 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_69| (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.offset_69| (_ BitVec 32)) (v_arrayElimArr_34 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_35 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (select v_arrayElimArr_35 |v_ULTIMATE.start_main_~l~0#1.offset_69|) |c_ULTIMATE.start_main_~l~0#1.base|)) (and (= (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_69| v_arrayElimArr_34) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|) (_ bv0 32)) (= (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_69| v_arrayElimArr_35) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|) (_ bv0 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_69|))) (not (= (select v_arrayElimArr_34 |v_ULTIMATE.start_main_~l~0#1.offset_69|) |c_ULTIMATE.start_main_~l~0#1.offset|)))) is different from false [2021-11-23 17:10:05,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:05,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:05,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:05,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:05,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:05,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:05,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:05,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:06,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:06,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:06,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:06,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:06,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:06,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:06,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:06,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:06,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:06,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:06,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:06,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-23 17:10:06,583 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:10:06,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 56 [2021-11-23 17:10:06,591 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:10:06,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 42 [2021-11-23 17:10:06,595 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:10:06,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 23 [2021-11-23 17:10:06,600 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:10:06,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2021-11-23 17:10:06,621 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 9 not checked. [2021-11-23 17:10:06,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576975696] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:10:06,621 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 17:10:06,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 18 [2021-11-23 17:10:06,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356648984] [2021-11-23 17:10:06,622 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 17:10:06,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-23 17:10:06,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:10:06,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-23 17:10:06,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=176, Unknown=3, NotChecked=84, Total=306 [2021-11-23 17:10:06,623 INFO L87 Difference]: Start difference. First operand 52 states and 68 transitions. Second operand has 18 states, 18 states have (on average 5.444444444444445) internal successors, (98), 18 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:10:07,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:10:07,689 INFO L93 Difference]: Finished difference Result 98 states and 126 transitions. [2021-11-23 17:10:07,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 17:10:07,691 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.444444444444445) internal successors, (98), 18 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-23 17:10:07,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:10:07,692 INFO L225 Difference]: With dead ends: 98 [2021-11-23 17:10:07,692 INFO L226 Difference]: Without dead ends: 59 [2021-11-23 17:10:07,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 199 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=222, Unknown=3, NotChecked=96, Total=380 [2021-11-23 17:10:07,693 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 61 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 148 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-23 17:10:07,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 252 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 148 Unchecked, 0.9s Time] [2021-11-23 17:10:07,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-11-23 17:10:07,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 52. [2021-11-23 17:10:07,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 51 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:10:07,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 68 transitions. [2021-11-23 17:10:07,705 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 68 transitions. Word has length 37 [2021-11-23 17:10:07,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:10:07,706 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 68 transitions. [2021-11-23 17:10:07,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.444444444444445) internal successors, (98), 18 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:10:07,706 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 68 transitions. [2021-11-23 17:10:07,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 17:10:07,707 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:10:07,708 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:10:07,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-11-23 17:10:07,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2021-11-23 17:10:08,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-23 17:10:08,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:10:08,310 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:10:08,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:10:08,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1279165932, now seen corresponding path program 4 times [2021-11-23 17:10:08,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:10:08,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1474168621] [2021-11-23 17:10:08,311 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 17:10:08,311 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:10:08,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:10:08,312 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:10:08,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-23 17:10:08,539 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 17:10:08,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:10:08,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-23 17:10:08,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:10:08,618 INFO L354 Elim1Store]: treesize reduction 74, result has 20.4 percent of original size [2021-11-23 17:10:08,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 26 [2021-11-23 17:10:08,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:10:08,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:10:08,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:10:08,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 48 [2021-11-23 17:10:08,803 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:10:08,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 26 treesize of output 37 [2021-11-23 17:10:08,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:10:09,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:10:09,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:10:09,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 115 [2021-11-23 17:10:09,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:10:09,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 74 [2021-11-23 17:10:09,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:10:09,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 92 [2021-11-23 17:10:09,180 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-23 17:10:09,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 36 [2021-11-23 17:10:09,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-23 17:10:10,976 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 17:10:10,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 212 treesize of output 103 [2021-11-23 17:10:10,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 48 [2021-11-23 17:10:11,199 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 10 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:10:11,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:10:13,684 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:10:13,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:10:13,692 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:10:13,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:10:13,813 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_40 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_74| (_ BitVec 32)) (v_ArrVal_923 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_39 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.offset_74| (_ BitVec 32))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_74| v_ArrVal_923) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_74| v_arrayElimArr_39) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_74| v_arrayElimArr_40) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_74|)))) (not (= (select v_arrayElimArr_39 |v_ULTIMATE.start_main_~l~0#1.offset_74|) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_40 |v_ULTIMATE.start_main_~l~0#1.offset_74|))) (not (= (select .cse0 (bvadd (_ bv8 32) .cse1)) (_ bv3 32))) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv1 32)))))) is different from false [2021-11-23 17:10:14,214 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:10:14,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 121 [2021-11-23 17:10:14,220 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:10:14,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 91 [2021-11-23 17:10:14,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 108 treesize of output 88 [2021-11-23 17:10:14,243 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:10:14,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 61 [2021-11-23 17:10:14,248 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:10:14,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-11-23 17:10:14,392 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_267 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_74| (_ BitVec 32)) (v_ArrVal_923 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_912 (_ BitVec 1)) (v_ArrVal_915 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_267 v_ArrVal_915) |v_ULTIMATE.start_main_~l~0#1.base_74| v_ArrVal_923) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (select (store |c_#valid| v_arrayElimCell_267 v_ArrVal_912) |v_ULTIMATE.start_main_~l~0#1.base_74|)))) (not (= (_ bv0 1) (bvadd (bvneg (bvneg v_ArrVal_912)) (_ bv1 1)))) (not (= (_ bv1 32) (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv3 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_arrayElimCell_267))))))) is different from false [2021-11-23 17:10:14,897 INFO L354 Elim1Store]: treesize reduction 106, result has 0.9 percent of original size [2021-11-23 17:10:14,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 1 [2021-11-23 17:10:14,906 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2021-11-23 17:10:14,906 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:10:14,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1474168621] [2021-11-23 17:10:14,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1474168621] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:10:14,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [367126780] [2021-11-23 17:10:14,907 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 17:10:14,907 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:10:14,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:10:14,909 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:10:14,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2021-11-23 17:10:15,381 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 17:10:15,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:10:15,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-23 17:10:15,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:10:15,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:10:15,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:10:15,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:10:15,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2021-11-23 17:10:15,549 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-23 17:10:15,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 22 treesize of output 29 [2021-11-23 17:10:15,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:10:15,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:10:15,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:10:15,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:10:15,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 52 [2021-11-23 17:10:15,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:10:15,807 INFO L354 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2021-11-23 17:10:15,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 30 [2021-11-23 17:10:15,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:10:15,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2021-11-23 17:10:15,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2021-11-23 17:10:15,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-11-23 17:10:17,467 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-23 17:10:17,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 57 [2021-11-23 17:10:17,487 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-23 17:10:17,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2021-11-23 17:10:17,697 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 10 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:10:17,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:10:17,894 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:10:17,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:10:17,901 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:10:17,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:10:18,006 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_79| (_ BitVec 32)) (v_ArrVal_993 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_45 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_46 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_79| v_ArrVal_993) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_79| v_arrayElimArr_45) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_79| v_arrayElimArr_46) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_79|)))) (_ bv0 1))) (not (= (select v_arrayElimArr_45 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv3 32) (select .cse0 (bvadd (_ bv8 32) .cse1)))) (not (= (select v_arrayElimArr_46 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv1 32)))))) is different from false [2021-11-23 17:10:18,119 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_79| (_ BitVec 32)) (v_ArrVal_993 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_45 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_46 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_79| v_ArrVal_993) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_79| v_arrayElimArr_45) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_79| v_arrayElimArr_46) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_79|)))))))) (not (= (select v_arrayElimArr_45 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv3 32) (select .cse0 (bvadd (_ bv8 32) .cse1)))) (not (= (select v_arrayElimArr_46 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv1 32)))))) is different from false [2021-11-23 17:10:18,350 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:10:18,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 107 [2021-11-23 17:10:18,354 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:10:18,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 83 [2021-11-23 17:10:18,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 103 treesize of output 83 [2021-11-23 17:10:18,370 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:10:18,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 55 [2021-11-23 17:10:18,373 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:10:18,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2021-11-23 17:10:18,491 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_79| (_ BitVec 32)) (v_ArrVal_993 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_991 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_989 (_ BitVec 1)) (v_arrayElimCell_285 (_ BitVec 32))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_285 v_ArrVal_991) |v_ULTIMATE.start_main_~l~0#1.base_79| v_ArrVal_993) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_285 v_ArrVal_989) |v_ULTIMATE.start_main_~l~0#1.base_79|))))))))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_arrayElimCell_285)))) (not (= (_ bv3 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv0 1) (bvadd (bvneg (bvneg v_ArrVal_989)) (_ bv1 1))))))) is different from false [2021-11-23 17:10:18,852 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 10 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2021-11-23 17:10:18,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [367126780] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:10:18,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852681534] [2021-11-23 17:10:18,853 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 17:10:18,853 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:10:18,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:10:18,854 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:10:18,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-11-23 17:10:18,998 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 17:10:18,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:10:19,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-23 17:10:19,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:10:19,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:10:19,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:10:19,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:10:19,172 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:10:19,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 25 treesize of output 36 [2021-11-23 17:10:19,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2021-11-23 17:10:19,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:10:19,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:10:19,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:10:19,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 59 [2021-11-23 17:10:19,433 INFO L354 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2021-11-23 17:10:19,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 17:10:19,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-23 17:10:19,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 34 [2021-11-23 17:10:19,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-23 17:10:20,799 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 17:10:20,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 58 [2021-11-23 17:10:20,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 10 [2021-11-23 17:10:20,848 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:10:20,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:10:21,061 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:10:21,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:10:21,069 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:10:21,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:10:21,182 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_50 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_51 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1072 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_84| (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.offset_84| (_ BitVec 32))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_84| v_ArrVal_1072) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_84| v_arrayElimArr_50) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_84| v_arrayElimArr_51) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv3 32) (select .cse0 (bvadd (_ bv8 32) .cse1)))) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv1 32))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_84|)))) (not (= (select v_arrayElimArr_50 |v_ULTIMATE.start_main_~l~0#1.offset_84|) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_51 |v_ULTIMATE.start_main_~l~0#1.offset_84|) |c_ULTIMATE.start_main_~l~0#1.offset|))))) is different from false [2021-11-23 17:10:21,551 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:10:21,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 121 [2021-11-23 17:10:21,555 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:10:21,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 91 [2021-11-23 17:10:21,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 107 treesize of output 87 [2021-11-23 17:10:21,582 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:10:21,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 61 [2021-11-23 17:10:21,587 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:10:21,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-11-23 17:10:21,735 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1064 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1063 (_ BitVec 1)) (v_ArrVal_1072 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_301 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_84| (_ BitVec 32))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_301 v_ArrVal_1064) |v_ULTIMATE.start_main_~l~0#1.base_84| v_ArrVal_1072) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_1063) (_ bv1 1)))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv3 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_301 v_ArrVal_1063) |v_ULTIMATE.start_main_~l~0#1.base_84|))))) (not (= (bvneg (select |c_#valid| v_arrayElimCell_301)) (_ bv0 1)))))) is different from false [2021-11-23 17:10:21,889 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1064 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1063 (_ BitVec 1)) (v_ArrVal_1072 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_301 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_84| (_ BitVec 32))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_301 v_ArrVal_1064) |v_ULTIMATE.start_main_~l~0#1.base_84| v_ArrVal_1072) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_1063) (_ bv1 1)))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv3 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_301)))))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_301 v_ArrVal_1063) |v_ULTIMATE.start_main_~l~0#1.base_84|)))))))) is different from false [2021-11-23 17:10:22,223 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2021-11-23 17:10:22,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852681534] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:10:22,223 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 17:10:22,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11, 12, 11, 12] total 36 [2021-11-23 17:10:22,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487957035] [2021-11-23 17:10:22,224 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 17:10:22,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-11-23 17:10:22,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:10:22,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-11-23 17:10:22,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=689, Unknown=9, NotChecked=472, Total=1260 [2021-11-23 17:10:22,226 INFO L87 Difference]: Start difference. First operand 52 states and 68 transitions. Second operand has 36 states, 36 states have (on average 4.0) internal successors, (144), 36 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:10:52,009 WARN L227 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 59 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 17:10:58,321 WARN L227 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 61 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 17:11:04,448 WARN L227 SmtUtils]: Spent 6.04s on a formula simplification that was a NOOP. DAG size: 63 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 17:11:10,571 WARN L227 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 61 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 17:11:11,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:11:11,413 INFO L93 Difference]: Finished difference Result 181 states and 226 transitions. [2021-11-23 17:11:11,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-11-23 17:11:11,414 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 4.0) internal successors, (144), 36 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-23 17:11:11,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:11:11,415 INFO L225 Difference]: With dead ends: 181 [2021-11-23 17:11:11,415 INFO L226 Difference]: Without dead ends: 166 [2021-11-23 17:11:11,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 200 SyntacticMatches, 9 SemanticMatches, 73 ConstructedPredicates, 8 IntricatePredicates, 3 DeprecatedPredicates, 1208 ImplicationChecksByTransitivity, 51.7s TimeCoverageRelationStatistics Valid=510, Invalid=3934, Unknown=10, NotChecked=1096, Total=5550 [2021-11-23 17:11:11,418 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 163 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 910 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-23 17:11:11,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 712 Invalid, 1202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 279 Invalid, 0 Unknown, 910 Unchecked, 1.1s Time] [2021-11-23 17:11:11,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-23 17:11:11,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 79. [2021-11-23 17:11:11,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 1.3076923076923077) internal successors, (102), 78 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:11:11,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 102 transitions. [2021-11-23 17:11:11,437 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 102 transitions. Word has length 39 [2021-11-23 17:11:11,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:11:11,437 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 102 transitions. [2021-11-23 17:11:11,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.0) internal successors, (144), 36 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:11:11,438 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 102 transitions. [2021-11-23 17:11:11,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 17:11:11,439 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:11:11,439 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:11:11,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-11-23 17:11:11,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-23 17:11:11,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (27)] Forceful destruction successful, exit code 0 [2021-11-23 17:11:12,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt [2021-11-23 17:11:12,046 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:11:12,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:11:12,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1472944936, now seen corresponding path program 1 times [2021-11-23 17:11:12,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:11:12,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087556699] [2021-11-23 17:11:12,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:11:12,047 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:11:12,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:11:12,048 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:11:12,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-23 17:11:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:11:12,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-23 17:11:12,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:11:12,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:11:12,398 INFO L354 Elim1Store]: treesize reduction 74, result has 20.4 percent of original size [2021-11-23 17:11:12,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 26 [2021-11-23 17:11:12,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:11:12,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:11:12,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:11:12,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 64 [2021-11-23 17:11:12,578 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:11:12,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 26 treesize of output 37 [2021-11-23 17:11:12,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:11:12,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:11:12,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 119 [2021-11-23 17:11:12,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:11:12,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 74 [2021-11-23 17:11:12,873 INFO L354 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2021-11-23 17:11:12,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 40 [2021-11-23 17:11:12,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 92 [2021-11-23 17:11:12,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-23 17:11:14,876 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 17:11:14,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 212 treesize of output 103 [2021-11-23 17:11:14,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 48 [2021-11-23 17:11:15,107 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 10 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:11:15,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:11:17,737 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:11:17,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:11:17,749 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:11:17,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:11:17,886 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_89| (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.offset_89| (_ BitVec 32)) (v_ArrVal_1148 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_55 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_56 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_89| v_ArrVal_1148) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_89| v_arrayElimArr_55) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_89| v_arrayElimArr_56) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv3 32) (select .cse0 (bvadd .cse1 (_ bv8 32))))) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv1 32))) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_55 |v_ULTIMATE.start_main_~l~0#1.offset_89|))) (not (= (select v_arrayElimArr_56 |v_ULTIMATE.start_main_~l~0#1.offset_89|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_89|))))))) is different from false [2021-11-23 17:11:18,299 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:11:18,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 121 [2021-11-23 17:11:18,303 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:11:18,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 91 [2021-11-23 17:11:18,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 107 treesize of output 87 [2021-11-23 17:11:18,320 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:11:18,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 61 [2021-11-23 17:11:18,323 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:11:18,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-11-23 17:11:18,437 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_89| (_ BitVec 32)) (v_arrayElimCell_317 (_ BitVec 32)) (v_ArrVal_1137 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1148 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1138 (_ BitVec 1))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_317 v_ArrVal_1137) |v_ULTIMATE.start_main_~l~0#1.base_89| v_ArrVal_1148) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (bvneg (select |c_#valid| v_arrayElimCell_317)) (_ bv0 1))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv0 1) (bvneg (select (store |c_#valid| v_arrayElimCell_317 v_ArrVal_1138) |v_ULTIMATE.start_main_~l~0#1.base_89|)))) (not (= (_ bv0 1) (bvadd (bvneg (bvneg v_ArrVal_1138)) (_ bv1 1)))) (not (= (_ bv3 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|))))))) is different from false [2021-11-23 17:11:18,564 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_89| (_ BitVec 32)) (v_arrayElimCell_317 (_ BitVec 32)) (v_ArrVal_1137 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1148 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1138 (_ BitVec 1))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_317 v_ArrVal_1137) |v_ULTIMATE.start_main_~l~0#1.base_89| v_ArrVal_1148) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv0 1) (bvneg (select (store |c_#valid| v_arrayElimCell_317 v_ArrVal_1138) |v_ULTIMATE.start_main_~l~0#1.base_89|)))) (not (= (_ bv0 1) (bvadd (bvneg (bvneg v_ArrVal_1138)) (_ bv1 1)))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_arrayElimCell_317))))) (not (= (_ bv3 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|))))))) is different from false [2021-11-23 17:11:18,834 INFO L354 Elim1Store]: treesize reduction 106, result has 0.9 percent of original size [2021-11-23 17:11:18,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 1 [2021-11-23 17:11:18,840 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2021-11-23 17:11:18,840 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:11:18,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2087556699] [2021-11-23 17:11:18,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2087556699] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:11:18,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1657361972] [2021-11-23 17:11:18,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:11:18,841 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:11:18,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:11:18,863 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:11:18,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2021-11-23 17:11:19,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:11:19,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-23 17:11:19,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:11:19,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:11:19,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:11:19,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:11:19,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2021-11-23 17:11:19,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:11:19,449 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:11:19,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 28 treesize of output 39 [2021-11-23 17:11:19,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:11:19,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:11:19,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:11:19,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 54 [2021-11-23 17:11:19,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:11:19,762 INFO L354 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2021-11-23 17:11:19,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 31 [2021-11-23 17:11:19,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:11:19,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2021-11-23 17:11:19,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2021-11-23 17:11:19,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-11-23 17:11:21,488 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-23 17:11:21,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 57 [2021-11-23 17:11:21,506 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-23 17:11:21,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2021-11-23 17:11:21,700 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 10 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:11:21,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:11:21,945 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:11:21,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:11:21,955 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:11:21,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:11:22,082 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_61 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_62 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_94| (_ BitVec 32)) (v_ArrVal_1216 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_94| v_ArrVal_1216) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_94| v_arrayElimArr_61) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_94| v_arrayElimArr_62) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv1 32) (select .cse0 (bvadd (_ bv4 32) .cse1)))) (not (= (select v_arrayElimArr_62 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv3 32) (select .cse0 (bvadd (_ bv8 32) .cse1)))) (not (= (select v_arrayElimArr_61 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_94|))))))))) is different from false [2021-11-23 17:11:22,491 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:11:22,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 129 treesize of output 115 [2021-11-23 17:11:22,495 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:11:22,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 87 [2021-11-23 17:11:22,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 105 treesize of output 85 [2021-11-23 17:11:22,511 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:11:22,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 59 [2021-11-23 17:11:22,515 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:11:22,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2021-11-23 17:11:22,633 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_335 (_ BitVec 32)) (v_ArrVal_1209 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1211 (_ BitVec 1)) (|v_ULTIMATE.start_main_~l~0#1.base_94| (_ BitVec 32)) (v_ArrVal_1216 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_335 v_ArrVal_1209) |v_ULTIMATE.start_main_~l~0#1.base_94| v_ArrVal_1216) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (_ bv0 1) (bvadd (bvneg (bvneg v_ArrVal_1211)) (_ bv1 1)))) (not (= (_ bv0 1) (select |c_#valid| v_arrayElimCell_335))) (not (= (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_335 v_ArrVal_1211) |v_ULTIMATE.start_main_~l~0#1.base_94|))))) (_ bv0 1))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32)))))) is different from false [2021-11-23 17:11:22,757 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_335 (_ BitVec 32)) (v_ArrVal_1209 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1211 (_ BitVec 1)) (|v_ULTIMATE.start_main_~l~0#1.base_94| (_ BitVec 32)) (v_ArrVal_1216 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_335 v_ArrVal_1209) |v_ULTIMATE.start_main_~l~0#1.base_94| v_ArrVal_1216) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_335 v_ArrVal_1211) |v_ULTIMATE.start_main_~l~0#1.base_94|)))))))) (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (_ bv0 1) (bvadd (bvneg (bvneg v_ArrVal_1211)) (_ bv1 1)))) (not (= (_ bv0 1) (select |c_#valid| v_arrayElimCell_335))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32)))))) is different from false [2021-11-23 17:11:23,043 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 10 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2021-11-23 17:11:23,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1657361972] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:11:23,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839747573] [2021-11-23 17:11:23,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:11:23,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:11:23,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:11:23,044 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:11:23,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-11-23 17:11:23,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:11:23,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-23 17:11:23,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:11:23,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:11:23,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:11:23,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:11:23,371 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:11:23,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 25 treesize of output 36 [2021-11-23 17:11:23,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2021-11-23 17:11:23,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:11:23,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:11:23,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:11:23,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 63 [2021-11-23 17:11:23,668 INFO L354 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2021-11-23 17:11:23,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 37 [2021-11-23 17:11:23,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-11-23 17:11:23,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2021-11-23 17:11:23,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-23 17:11:25,218 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 17:11:25,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 58 [2021-11-23 17:11:25,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 10 [2021-11-23 17:11:25,274 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:11:25,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:11:25,479 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:11:25,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:11:25,487 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:11:25,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:11:25,614 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.offset_99| (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_99| (_ BitVec 32)) (v_ArrVal_1290 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_66 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_67 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_99| v_ArrVal_1290) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_99| v_arrayElimArr_66) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_99| v_arrayElimArr_67) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv3 32) (select .cse0 (bvadd (_ bv8 32) .cse1)))) (not (= (select v_arrayElimArr_67 |v_ULTIMATE.start_main_~l~0#1.offset_99|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select v_arrayElimArr_66 |v_ULTIMATE.start_main_~l~0#1.offset_99|) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv1 32))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_99|))))))))) is different from false [2021-11-23 17:11:26,026 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:11:26,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 121 [2021-11-23 17:11:26,029 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:11:26,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 91 [2021-11-23 17:11:26,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 110 treesize of output 90 [2021-11-23 17:11:26,044 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:11:26,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 61 [2021-11-23 17:11:26,055 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:11:26,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-11-23 17:11:26,168 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1283 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1282 (_ BitVec 1)) (|v_ULTIMATE.start_main_~l~0#1.base_99| (_ BitVec 32)) (v_arrayElimCell_351 (_ BitVec 32)) (v_ArrVal_1290 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_351 v_ArrVal_1283) |v_ULTIMATE.start_main_~l~0#1.base_99| v_ArrVal_1290) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (bvadd (bvneg (bvneg (bvneg (bvneg v_ArrVal_1282)))) (_ bv1 1)) (_ bv0 1))) (not (= (_ bv3 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_arrayElimCell_351))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_351 v_ArrVal_1282) |v_ULTIMATE.start_main_~l~0#1.base_99|))))))))) is different from false [2021-11-23 17:11:26,297 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1283 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1282 (_ BitVec 1)) (|v_ULTIMATE.start_main_~l~0#1.base_99| (_ BitVec 32)) (v_arrayElimCell_351 (_ BitVec 32)) (v_ArrVal_1290 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_351 v_ArrVal_1283) |v_ULTIMATE.start_main_~l~0#1.base_99| v_ArrVal_1290) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv3 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_arrayElimCell_351))))) (not (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg v_ArrVal_1282))))))) (_ bv1 1)))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_351 v_ArrVal_1282) |v_ULTIMATE.start_main_~l~0#1.base_99|))))))))) is different from false [2021-11-23 17:11:26,555 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2021-11-23 17:11:26,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839747573] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:11:26,555 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 17:11:26,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 11, 12, 11, 12] total 37 [2021-11-23 17:11:26,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794599680] [2021-11-23 17:11:26,556 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 17:11:26,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-11-23 17:11:26,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:11:26,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-11-23 17:11:26,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=690, Unknown=10, NotChecked=540, Total=1332 [2021-11-23 17:11:26,558 INFO L87 Difference]: Start difference. First operand 79 states and 102 transitions. Second operand has 37 states, 37 states have (on average 3.891891891891892) internal successors, (144), 37 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:11:52,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:11:52,019 INFO L93 Difference]: Finished difference Result 138 states and 172 transitions. [2021-11-23 17:11:52,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-23 17:11:52,019 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 3.891891891891892) internal successors, (144), 37 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-23 17:11:52,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:11:52,021 INFO L225 Difference]: With dead ends: 138 [2021-11-23 17:11:52,021 INFO L226 Difference]: Without dead ends: 123 [2021-11-23 17:11:52,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 195 SyntacticMatches, 9 SemanticMatches, 57 ConstructedPredicates, 9 IntricatePredicates, 3 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 28.1s TimeCoverageRelationStatistics Valid=316, Invalid=2159, Unknown=11, NotChecked=936, Total=3422 [2021-11-23 17:11:52,023 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 104 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 683 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-23 17:11:52,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 674 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 281 Invalid, 0 Unknown, 683 Unchecked, 1.3s Time] [2021-11-23 17:11:52,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-11-23 17:11:52,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 76. [2021-11-23 17:11:52,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.3066666666666666) internal successors, (98), 75 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:11:52,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 98 transitions. [2021-11-23 17:11:52,038 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 98 transitions. Word has length 39 [2021-11-23 17:11:52,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:11:52,039 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 98 transitions. [2021-11-23 17:11:52,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 3.891891891891892) internal successors, (144), 37 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:11:52,039 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 98 transitions. [2021-11-23 17:11:52,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-23 17:11:52,040 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:11:52,040 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:11:52,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (30)] Forceful destruction successful, exit code 0 [2021-11-23 17:11:52,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-11-23 17:11:52,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2021-11-23 17:11:52,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:11:52,644 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:11:52,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:11:52,644 INFO L85 PathProgramCache]: Analyzing trace with hash 858799100, now seen corresponding path program 2 times [2021-11-23 17:11:52,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:11:52,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169733567] [2021-11-23 17:11:52,645 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 17:11:52,645 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:11:52,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:11:52,647 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:11:52,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-11-23 17:11:53,005 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 17:11:53,005 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:11:53,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 57 conjunts are in the unsatisfiable core [2021-11-23 17:11:53,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:11:53,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:11:53,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:11:53,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:11:53,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:11:53,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:11:53,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 52 [2021-11-23 17:11:53,266 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:11:53,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 28 treesize of output 39 [2021-11-23 17:11:53,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:11:53,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:11:53,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:11:53,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 112 [2021-11-23 17:11:53,588 INFO L354 Elim1Store]: treesize reduction 8, result has 74.2 percent of original size [2021-11-23 17:11:53,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 42 [2021-11-23 17:11:53,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 58 [2021-11-23 17:11:53,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-23 17:11:55,947 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 17:11:55,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 211 treesize of output 90 [2021-11-23 17:11:55,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 10 [2021-11-23 17:11:56,344 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:11:56,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:11:57,100 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:11:57,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:11:57,110 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:11:57,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:11:57,229 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_72 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_73 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1365 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_104| (_ BitVec 32))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_104| v_ArrVal_1365) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_104| v_arrayElimArr_72) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_104| v_arrayElimArr_73) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select v_arrayElimArr_73 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_104|))))) (not (= (_ bv2 32) (select .cse0 (bvadd .cse1 (_ bv8 32))))) (not (= (_ bv1 32) (select v_ArrVal_1365 (_ bv4 32)))) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_72 (_ bv0 32)))) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv0 32)))))) is different from false [2021-11-23 17:11:57,624 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:11:57,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 121 [2021-11-23 17:11:57,629 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:11:57,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 91 [2021-11-23 17:11:57,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 111 treesize of output 91 [2021-11-23 17:11:57,644 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:11:57,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 61 [2021-11-23 17:11:57,648 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:11:57,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-11-23 17:11:57,799 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1360 (_ BitVec 1)) (v_arrayElimCell_367 (_ BitVec 32)) (v_ArrVal_1365 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1358 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_104| (_ BitVec 32))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_367 v_ArrVal_1358) |v_ULTIMATE.start_main_~l~0#1.base_104| v_ArrVal_1365) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_367)))))) (not (= (bvneg (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_367 v_ArrVal_1360) |v_ULTIMATE.start_main_~l~0#1.base_104|)))) (_ bv0 1))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 32) (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv1 32) (select v_ArrVal_1365 (_ bv4 32)))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_1360) (_ bv1 1))))))) is different from false [2021-11-23 17:11:57,951 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1360 (_ BitVec 1)) (v_arrayElimCell_367 (_ BitVec 32)) (v_ArrVal_1365 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1358 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_104| (_ BitVec 32))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_367 v_ArrVal_1358) |v_ULTIMATE.start_main_~l~0#1.base_104| v_ArrVal_1365) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_367)))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_367 v_ArrVal_1360) |v_ULTIMATE.start_main_~l~0#1.base_104|)))))))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 32) (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv1 32) (select v_ArrVal_1365 (_ bv4 32)))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_1360) (_ bv1 1))))))) is different from false [2021-11-23 17:11:58,286 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-23 17:11:58,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 1 [2021-11-23 17:11:58,291 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 10 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2021-11-23 17:11:58,292 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:11:58,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169733567] [2021-11-23 17:11:58,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [169733567] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:11:58,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1420840347] [2021-11-23 17:11:58,292 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 17:11:58,292 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:11:58,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:11:58,293 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:11:58,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2021-11-23 17:11:58,595 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 17:11:58,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:11:58,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-23 17:11:58,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:11:58,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:11:58,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:11:58,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:11:58,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2021-11-23 17:11:58,778 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-23 17:11:58,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 23 treesize of output 30 [2021-11-23 17:11:58,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:11:58,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:11:59,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:11:59,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:11:59,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 52 [2021-11-23 17:11:59,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:11:59,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2021-11-23 17:11:59,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:11:59,072 INFO L354 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2021-11-23 17:11:59,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 32 [2021-11-23 17:11:59,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2021-11-23 17:11:59,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-11-23 17:12:00,828 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-23 17:12:00,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 57 [2021-11-23 17:12:00,842 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-23 17:12:00,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2021-11-23 17:12:01,062 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 10 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:12:01,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:12:01,407 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:12:01,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:12:01,417 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:12:01,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:12:01,548 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_109| (_ BitVec 32)) (v_ArrVal_1438 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_78 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_79 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_109| v_ArrVal_1438) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_109| v_arrayElimArr_78) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_109| v_arrayElimArr_79) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select v_arrayElimArr_78 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) .cse1)))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_109|))) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv0 32))) (not (= (select v_arrayElimArr_79 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|))))) is different from false [2021-11-23 17:12:01,953 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:12:01,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 129 treesize of output 115 [2021-11-23 17:12:01,957 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:12:01,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 87 [2021-11-23 17:12:01,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 105 treesize of output 85 [2021-11-23 17:12:01,975 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:12:01,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 59 [2021-11-23 17:12:01,979 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:12:01,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2021-11-23 17:12:02,089 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_109| (_ BitVec 32)) (v_ArrVal_1434 (_ BitVec 1)) (v_ArrVal_1432 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1438 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_385 (_ BitVec 32))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_385 v_ArrVal_1432) |v_ULTIMATE.start_main_~l~0#1.base_109| v_ArrVal_1438) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (bvadd (bvneg (bvneg (bvneg (bvneg v_ArrVal_1434)))) (_ bv1 1)) (_ bv0 1))) (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv2 32))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_arrayElimCell_385)))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_385 v_ArrVal_1434) |v_ULTIMATE.start_main_~l~0#1.base_109|)))))))) is different from false [2021-11-23 17:12:02,209 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_109| (_ BitVec 32)) (v_ArrVal_1434 (_ BitVec 1)) (v_ArrVal_1432 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1438 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_385 (_ BitVec 32))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_385 v_ArrVal_1432) |v_ULTIMATE.start_main_~l~0#1.base_109| v_ArrVal_1438) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv2 32))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_arrayElimCell_385)))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_385 v_ArrVal_1434) |v_ULTIMATE.start_main_~l~0#1.base_109|))))) (not (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg v_ArrVal_1434))))) (_ bv1 1))))))) is different from false [2021-11-23 17:12:02,476 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 10 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2021-11-23 17:12:02,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1420840347] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:12:02,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208070953] [2021-11-23 17:12:02,477 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 17:12:02,477 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:12:02,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:12:02,478 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:12:02,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-11-23 17:12:02,633 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 17:12:02,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:12:02,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-23 17:12:02,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:12:02,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:12:02,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:12:02,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:12:02,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:12:02,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2021-11-23 17:12:02,808 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:12:02,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 25 treesize of output 36 [2021-11-23 17:12:02,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:12:03,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:12:03,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:12:03,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:12:03,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 62 [2021-11-23 17:12:03,123 INFO L354 Elim1Store]: treesize reduction 8, result has 74.2 percent of original size [2021-11-23 17:12:03,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 41 [2021-11-23 17:12:03,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 34 [2021-11-23 17:12:03,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-23 17:12:04,608 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 17:12:04,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 58 [2021-11-23 17:12:04,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 10 [2021-11-23 17:12:04,711 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 10 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:12:04,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:12:04,943 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:12:04,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:12:04,963 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:12:04,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:12:05,116 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_84 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_85 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.offset_114| (_ BitVec 32)) (v_ArrVal_1515 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_114| (_ BitVec 32))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_114| v_ArrVal_1515) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_114| v_arrayElimArr_84) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_114| v_arrayElimArr_85) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_114|)))) (not (= (select v_arrayElimArr_85 |v_ULTIMATE.start_main_~l~0#1.offset_114|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv0 32))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) .cse1)))) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_84 |v_ULTIMATE.start_main_~l~0#1.offset_114|)))))) is different from false [2021-11-23 17:12:05,532 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:12:05,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 121 [2021-11-23 17:12:05,536 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:12:05,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 91 [2021-11-23 17:12:05,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 109 treesize of output 89 [2021-11-23 17:12:05,555 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:12:05,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 61 [2021-11-23 17:12:05,559 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:12:05,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-11-23 17:12:05,675 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1508 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_401 (_ BitVec 32)) (v_ArrVal_1507 (_ BitVec 1)) (v_ArrVal_1515 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_114| (_ BitVec 32))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_401 v_ArrVal_1508) |v_ULTIMATE.start_main_~l~0#1.base_114| v_ArrVal_1515) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_401 v_ArrVal_1507) |v_ULTIMATE.start_main_~l~0#1.base_114|))))) (not (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg v_ArrVal_1507)))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_arrayElimCell_401))))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv2 32)))))) is different from false [2021-11-23 17:12:06,068 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 10 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2021-11-23 17:12:06,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208070953] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:12:06,069 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 17:12:06,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 11, 12, 11, 11] total 41 [2021-11-23 17:12:06,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971033280] [2021-11-23 17:12:06,069 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 17:12:06,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-11-23 17:12:06,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:12:06,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-11-23 17:12:06,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=947, Unknown=8, NotChecked=552, Total=1640 [2021-11-23 17:12:06,071 INFO L87 Difference]: Start difference. First operand 76 states and 98 transitions. Second operand has 41 states, 41 states have (on average 3.7804878048780486) internal successors, (155), 41 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:12:33,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:12:33,403 INFO L93 Difference]: Finished difference Result 216 states and 269 transitions. [2021-11-23 17:12:33,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-23 17:12:33,404 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 3.7804878048780486) internal successors, (155), 41 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-23 17:12:33,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:12:33,405 INFO L225 Difference]: With dead ends: 216 [2021-11-23 17:12:33,405 INFO L226 Difference]: Without dead ends: 214 [2021-11-23 17:12:33,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 205 SyntacticMatches, 11 SemanticMatches, 76 ConstructedPredicates, 8 IntricatePredicates, 2 DeprecatedPredicates, 1347 ImplicationChecksByTransitivity, 27.9s TimeCoverageRelationStatistics Valid=563, Invalid=4291, Unknown=8, NotChecked=1144, Total=6006 [2021-11-23 17:12:33,408 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 100 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 669 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-23 17:12:33,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 522 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 350 Invalid, 0 Unknown, 669 Unchecked, 1.7s Time] [2021-11-23 17:12:33,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-11-23 17:12:33,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 136. [2021-11-23 17:12:33,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 1.3037037037037038) internal successors, (176), 135 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:12:33,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 176 transitions. [2021-11-23 17:12:33,430 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 176 transitions. Word has length 41 [2021-11-23 17:12:33,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:12:33,430 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 176 transitions. [2021-11-23 17:12:33,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 3.7804878048780486) internal successors, (155), 41 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:12:33,431 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 176 transitions. [2021-11-23 17:12:33,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-23 17:12:33,432 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:12:33,432 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:12:33,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-11-23 17:12:33,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2021-11-23 17:12:33,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2021-11-23 17:12:34,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:12:34,047 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:12:34,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:12:34,048 INFO L85 PathProgramCache]: Analyzing trace with hash -679230016, now seen corresponding path program 3 times [2021-11-23 17:12:34,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:12:34,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520862767] [2021-11-23 17:12:34,048 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 17:12:34,048 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:12:34,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:12:34,049 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:12:34,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-11-23 17:12:34,400 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-23 17:12:34,400 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:12:34,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 59 conjunts are in the unsatisfiable core [2021-11-23 17:12:34,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:12:34,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:12:34,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:12:34,600 INFO L354 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2021-11-23 17:12:34,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 60 [2021-11-23 17:12:34,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:12:34,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:12:34,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:12:34,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:12:34,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 123 [2021-11-23 17:12:34,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:12:34,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2021-11-23 17:12:34,999 INFO L354 Elim1Store]: treesize reduction 27, result has 48.1 percent of original size [2021-11-23 17:12:34,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 185 treesize of output 109 [2021-11-23 17:12:35,015 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-23 17:12:35,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 20 [2021-11-23 17:12:35,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-11-23 17:12:38,499 INFO L354 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2021-11-23 17:12:38,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 257 treesize of output 135 [2021-11-23 17:12:38,514 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-23 17:12:38,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 26 [2021-11-23 17:12:40,880 INFO L354 Elim1Store]: treesize reduction 4, result has 76.5 percent of original size [2021-11-23 17:12:40,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 92 treesize of output 64 [2021-11-23 17:12:40,996 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:12:40,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:12:42,309 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:12:42,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:12:42,326 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:12:42,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:12:42,545 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1590 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_90 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_119| (_ BitVec 32)) (v_arrayElimArr_89 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_119| v_ArrVal_1590))) (let ((.cse0 (select .cse2 (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_119| v_arrayElimArr_89) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_119| v_arrayElimArr_90) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select v_arrayElimArr_90 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_119|))) (not (= (_ bv1 32) (select v_ArrVal_1590 (_ bv4 32)))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) .cse1)))) (not (= (select v_arrayElimArr_89 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (= (_ bv2 32) (select (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|))) (not (= (_ bv0 32) (select .cse0 (bvadd (_ bv4 32) .cse1)))))))) is different from false [2021-11-23 17:12:43,218 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:12:43,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 107 [2021-11-23 17:12:43,225 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:12:43,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 83 [2021-11-23 17:12:43,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 107 treesize of output 85 [2021-11-23 17:12:43,254 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:12:43,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 55 [2021-11-23 17:12:43,260 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:12:43,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2021-11-23 17:12:43,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 20 treesize of output 18 [2021-11-23 17:12:43,551 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1580 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_420 (_ BitVec 32)) (v_ArrVal_1590 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_119| (_ BitVec 32))) (let ((.cse1 (store (store |c_#memory_int| v_arrayElimCell_420 v_ArrVal_1580) |v_ULTIMATE.start_main_~l~0#1.base_119| v_ArrVal_1590))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_main_~l~0#1.base|))) (or (= v_arrayElimCell_420 |v_ULTIMATE.start_main_~l~0#1.base_119|) (not (= (_ bv1 32) (select v_ArrVal_1590 (_ bv4 32)))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (= (select (select .cse1 v_arrayElimCell_420) (_ bv8 32)) (_ bv2 32)))))) is different from false [2021-11-23 17:12:43,957 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-23 17:12:43,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 1 [2021-11-23 17:12:43,965 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 10 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2021-11-23 17:12:43,966 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:12:43,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520862767] [2021-11-23 17:12:43,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520862767] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:12:43,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [984135388] [2021-11-23 17:12:43,967 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 17:12:43,967 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:12:43,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:12:43,968 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:12:43,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2021-11-23 17:12:44,488 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-23 17:12:44,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:12:44,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 56 conjunts are in the unsatisfiable core [2021-11-23 17:12:44,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:12:44,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:12:44,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:12:44,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:12:44,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:12:44,694 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:12:44,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 25 treesize of output 36 [2021-11-23 17:12:44,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2021-11-23 17:12:44,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:12:44,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 53 [2021-11-23 17:12:44,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:12:44,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:12:44,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2021-11-23 17:12:44,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:12:44,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 58 [2021-11-23 17:12:44,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:12:44,997 INFO L354 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2021-11-23 17:12:44,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 36 [2021-11-23 17:12:45,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-11-23 17:12:47,203 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-23 17:12:47,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 57 [2021-11-23 17:12:47,221 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-23 17:12:47,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2021-11-23 17:12:47,655 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 10 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:12:47,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:12:48,599 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:12:48,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 89 [2021-11-23 17:12:48,615 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:12:48,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 83 [2021-11-23 17:12:48,810 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_95 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32)) (v_arrayElimArr_96 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1658 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_124| (_ BitVec 32)) (v_ArrVal_1661 (_ BitVec 32))) (let ((.cse2 (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_124|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) v_ArrVal_1658) (_ bv0 32) v_ArrVal_1661))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_124| .cse2) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_124| v_arrayElimArr_95) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_124| v_arrayElimArr_96) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_124|)))) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv0 32))) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_95 (_ bv0 32)))) (not (= (select v_arrayElimArr_96 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv2 32) (select .cse0 (bvadd .cse1 (_ bv8 32))))) (not (= (select .cse2 (_ bv4 32)) (_ bv1 32))))))) is different from false [2021-11-23 17:12:49,438 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:12:49,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 169 treesize of output 153 [2021-11-23 17:12:49,442 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:12:49,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 123 [2021-11-23 17:12:49,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 163 treesize of output 137 [2021-11-23 17:12:49,468 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:12:49,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 99 treesize of output 89 [2021-11-23 17:12:49,472 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:12:49,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 65 [2021-11-23 17:12:49,763 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32)) (v_ArrVal_1651 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1658 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_124| (_ BitVec 32)) (v_arrayElimCell_440 (_ BitVec 32)) (v_ArrVal_1661 (_ BitVec 32)) (v_ArrVal_1656 (_ BitVec 1))) (let ((.cse2 (store |c_#memory_int| v_arrayElimCell_440 v_ArrVal_1651))) (let ((.cse0 (store (store (store (select .cse2 |v_ULTIMATE.start_main_~l~0#1.base_124|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) v_ArrVal_1658) (_ bv0 32) v_ArrVal_1661))) (let ((.cse1 (select (store .cse2 |v_ULTIMATE.start_main_~l~0#1.base_124| .cse0) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_440 v_ArrVal_1656) |v_ULTIMATE.start_main_~l~0#1.base_124|))))) (not (= (_ bv1 32) (select .cse0 (_ bv4 32)))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_1656) (_ bv1 1)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_arrayElimCell_440)))) (not (= (_ bv2 32) (select .cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (select .cse1 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32)))))))) is different from false [2021-11-23 17:12:50,662 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 10 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2021-11-23 17:12:50,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [984135388] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:12:50,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078731556] [2021-11-23 17:12:50,663 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 17:12:50,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:12:50,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:12:50,663 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:12:50,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-11-23 17:12:51,107 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-23 17:12:51,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:12:51,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-23 17:12:51,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:12:51,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:12:51,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:12:51,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:12:51,297 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:12:51,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 26 treesize of output 37 [2021-11-23 17:12:51,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2021-11-23 17:12:51,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:12:51,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:12:51,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:12:51,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 59 [2021-11-23 17:12:51,609 INFO L354 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2021-11-23 17:12:51,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2021-11-23 17:12:51,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-11-23 17:12:51,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2021-11-23 17:12:51,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-23 17:12:53,168 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 17:12:53,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 58 [2021-11-23 17:12:53,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 10 [2021-11-23 17:12:53,453 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 10 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:12:53,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:12:53,825 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:12:53,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:12:53,834 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:12:53,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:12:53,970 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_100 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_101 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_129| (_ BitVec 32)) (v_ArrVal_1735 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_129| v_ArrVal_1735) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_129| v_arrayElimArr_100) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_129| v_arrayElimArr_101) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select v_arrayElimArr_101 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv2 32) (select .cse0 (bvadd .cse1 (_ bv8 32))))) (not (= (select .cse0 (bvadd .cse1 (_ bv4 32))) (_ bv0 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_129|))) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_100 (_ bv0 32))))))) is different from false [2021-11-23 17:12:54,340 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:12:54,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 121 [2021-11-23 17:12:54,344 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:12:54,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 91 [2021-11-23 17:12:54,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 107 treesize of output 87 [2021-11-23 17:12:54,357 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:12:54,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 61 [2021-11-23 17:12:54,360 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:12:54,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-11-23 17:12:54,472 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_456 (_ BitVec 32)) (v_ArrVal_1732 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1731 (_ BitVec 1)) (|v_ULTIMATE.start_main_~l~0#1.base_129| (_ BitVec 32)) (v_ArrVal_1735 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_456 v_ArrVal_1732) |v_ULTIMATE.start_main_~l~0#1.base_129| v_ArrVal_1735) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_1731) (_ bv1 1)))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv2 32))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_456 v_ArrVal_1731) |v_ULTIMATE.start_main_~l~0#1.base_129|))))) (not (= (_ bv0 1) (select |c_#valid| v_arrayElimCell_456)))))) is different from false [2021-11-23 17:12:54,839 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 10 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2021-11-23 17:12:54,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078731556] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:12:54,840 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 17:12:54,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 13, 13, 11, 11] total 53 [2021-11-23 17:12:54,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247236722] [2021-11-23 17:12:54,840 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 17:12:54,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2021-11-23 17:12:54,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:12:54,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-11-23 17:12:54,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1967, Unknown=6, NotChecked=570, Total=2756 [2021-11-23 17:12:54,842 INFO L87 Difference]: Start difference. First operand 136 states and 176 transitions. Second operand has 53 states, 53 states have (on average 3.358490566037736) internal successors, (178), 53 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:12:55,548 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse8 (select |c_#memory_int| |c_ULTIMATE.start_main_~l~0#1.base|))) (let ((.cse3 (select .cse8 (_ bv4 32))) (.cse4 (select .cse8 (_ bv8 32)))) (and (forall ((v_arrayElimCell_456 (_ BitVec 32)) (v_ArrVal_1732 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1731 (_ BitVec 1)) (|v_ULTIMATE.start_main_~l~0#1.base_129| (_ BitVec 32)) (v_ArrVal_1735 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_456 v_ArrVal_1732) |v_ULTIMATE.start_main_~l~0#1.base_129| v_ArrVal_1735) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_1731) (_ bv1 1)))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv2 32))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_456 v_ArrVal_1731) |v_ULTIMATE.start_main_~l~0#1.base_129|))))) (not (= (_ bv0 1) (select |c_#valid| v_arrayElimCell_456)))))) (forall ((v_ArrVal_1580 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_420 (_ BitVec 32)) (v_ArrVal_1590 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_119| (_ BitVec 32))) (let ((.cse2 (store (store |c_#memory_int| v_arrayElimCell_420 v_ArrVal_1580) |v_ULTIMATE.start_main_~l~0#1.base_119| v_ArrVal_1590))) (let ((.cse1 (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|))) (or (= v_arrayElimCell_420 |v_ULTIMATE.start_main_~l~0#1.base_119|) (not (= (_ bv1 32) (select v_ArrVal_1590 (_ bv4 32)))) (not (= (_ bv2 32) (select .cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (select .cse1 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (= (select (select .cse2 v_arrayElimCell_420) (_ bv8 32)) (_ bv2 32)))))) (not (bvsgt |c_ULTIMATE.start_main_~ev2~0#1| (_ bv3 32))) (not (bvsgt .cse3 (_ bv3 32))) (or (not (= .cse3 (_ bv0 32))) (not (= (_ bv2 32) .cse4))) (forall ((|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32)) (v_ArrVal_1651 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1658 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_124| (_ BitVec 32)) (v_arrayElimCell_440 (_ BitVec 32)) (v_ArrVal_1661 (_ BitVec 32)) (v_ArrVal_1656 (_ BitVec 1))) (let ((.cse7 (store |c_#memory_int| v_arrayElimCell_440 v_ArrVal_1651))) (let ((.cse5 (store (store (store (select .cse7 |v_ULTIMATE.start_main_~l~0#1.base_124|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) v_ArrVal_1658) (_ bv0 32) v_ArrVal_1661))) (let ((.cse6 (select (store .cse7 |v_ULTIMATE.start_main_~l~0#1.base_124| .cse5) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_440 v_ArrVal_1656) |v_ULTIMATE.start_main_~l~0#1.base_124|))))) (not (= (_ bv1 32) (select .cse5 (_ bv4 32)))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_1656) (_ bv1 1)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_arrayElimCell_440)))) (not (= (_ bv2 32) (select .cse6 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (select .cse6 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32)))))))) (= |c_ULTIMATE.start_main_~l~0#1.offset| (_ bv0 32)) (not (bvslt |c_ULTIMATE.start_main_~ev2~0#1| (_ bv0 32))) (not (bvslt .cse3 (_ bv0 32))) (not (bvslt |c_ULTIMATE.start_main_~ev1~0#1| (_ bv0 32))) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~l~0#1.base|)) (_ bv1 1))) (not (bvsgt |c_ULTIMATE.start_main_~ev1~0#1| (_ bv3 32))) (not (bvslt .cse4 (_ bv0 32))) (not (bvsgt .cse4 (_ bv3 32)))))) is different from false [2021-11-23 17:12:55,567 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse8 (select |c_#memory_int| |c_ULTIMATE.start_main_~l~0#1.base|))) (let ((.cse3 (select .cse8 (_ bv4 32))) (.cse4 (select .cse8 (_ bv8 32)))) (and (forall ((v_arrayElimCell_456 (_ BitVec 32)) (v_ArrVal_1732 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1731 (_ BitVec 1)) (|v_ULTIMATE.start_main_~l~0#1.base_129| (_ BitVec 32)) (v_ArrVal_1735 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_456 v_ArrVal_1732) |v_ULTIMATE.start_main_~l~0#1.base_129| v_ArrVal_1735) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_1731) (_ bv1 1)))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv2 32))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_456 v_ArrVal_1731) |v_ULTIMATE.start_main_~l~0#1.base_129|))))) (not (= (_ bv0 1) (select |c_#valid| v_arrayElimCell_456)))))) (forall ((v_ArrVal_1580 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_420 (_ BitVec 32)) (v_ArrVal_1590 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_119| (_ BitVec 32))) (let ((.cse2 (store (store |c_#memory_int| v_arrayElimCell_420 v_ArrVal_1580) |v_ULTIMATE.start_main_~l~0#1.base_119| v_ArrVal_1590))) (let ((.cse1 (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|))) (or (= v_arrayElimCell_420 |v_ULTIMATE.start_main_~l~0#1.base_119|) (not (= (_ bv1 32) (select v_ArrVal_1590 (_ bv4 32)))) (not (= (_ bv2 32) (select .cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (select .cse1 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (= (select (select .cse2 v_arrayElimCell_420) (_ bv8 32)) (_ bv2 32)))))) (not (bvsgt .cse3 (_ bv3 32))) (or (not (= .cse3 (_ bv0 32))) (not (= (_ bv2 32) .cse4))) (forall ((|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32)) (v_ArrVal_1651 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1658 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_124| (_ BitVec 32)) (v_arrayElimCell_440 (_ BitVec 32)) (v_ArrVal_1661 (_ BitVec 32)) (v_ArrVal_1656 (_ BitVec 1))) (let ((.cse7 (store |c_#memory_int| v_arrayElimCell_440 v_ArrVal_1651))) (let ((.cse5 (store (store (store (select .cse7 |v_ULTIMATE.start_main_~l~0#1.base_124|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) v_ArrVal_1658) (_ bv0 32) v_ArrVal_1661))) (let ((.cse6 (select (store .cse7 |v_ULTIMATE.start_main_~l~0#1.base_124| .cse5) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_440 v_ArrVal_1656) |v_ULTIMATE.start_main_~l~0#1.base_124|))))) (not (= (_ bv1 32) (select .cse5 (_ bv4 32)))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_1656) (_ bv1 1)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_arrayElimCell_440)))) (not (= (_ bv2 32) (select .cse6 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (select .cse6 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32)))))))) (= |c_ULTIMATE.start_main_~l~0#1.offset| (_ bv0 32)) (not (bvslt .cse3 (_ bv0 32))) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~l~0#1.base|)) (_ bv1 1))) (not (bvslt .cse4 (_ bv0 32))) (not (bvsgt .cse4 (_ bv3 32)))))) is different from false [2021-11-23 17:12:55,725 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse27 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32)))) (let ((.cse28 (select |c_#memory_int| .cse27))) (let ((.cse23 (select .cse28 (_ bv8 32))) (.cse22 (select .cse28 (_ bv4 32))) (.cse26 (select |c_#memory_int| |c_ULTIMATE.start_main_~l~0#1.base|))) (let ((.cse15 (= .cse27 |c_ULTIMATE.start_main_~l~0#1.base|)) (.cse9 (select .cse26 (_ bv4 32))) (.cse19 (not (= .cse22 (_ bv0 32)))) (.cse21 (not (= (_ bv2 32) .cse23))) (.cse10 (select .cse26 (_ bv8 32)))) (and (forall ((v_arrayElimArr_95 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32)) (v_arrayElimArr_96 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1658 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_124| (_ BitVec 32)) (v_ArrVal_1661 (_ BitVec 32))) (let ((.cse2 (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_124|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) v_ArrVal_1658) (_ bv0 32) v_ArrVal_1661))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_124| .cse2) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_124| v_arrayElimArr_95) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_124| v_arrayElimArr_96) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_124|)))) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv0 32))) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_95 (_ bv0 32)))) (not (= (select v_arrayElimArr_96 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv2 32) (select .cse0 (bvadd .cse1 (_ bv8 32))))) (not (= (select .cse2 (_ bv4 32)) (_ bv1 32))))))) (forall ((v_arrayElimCell_456 (_ BitVec 32)) (v_ArrVal_1732 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1731 (_ BitVec 1)) (|v_ULTIMATE.start_main_~l~0#1.base_129| (_ BitVec 32)) (v_ArrVal_1735 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (store (store |c_#memory_int| v_arrayElimCell_456 v_ArrVal_1732) |v_ULTIMATE.start_main_~l~0#1.base_129| v_ArrVal_1735) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_1731) (_ bv1 1)))) (not (= (select .cse3 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (select .cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv2 32))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_456 v_ArrVal_1731) |v_ULTIMATE.start_main_~l~0#1.base_129|))))) (not (= (_ bv0 1) (select |c_#valid| v_arrayElimCell_456)))))) (forall ((v_ArrVal_1580 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_420 (_ BitVec 32)) (v_ArrVal_1590 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_119| (_ BitVec 32))) (let ((.cse5 (store (store |c_#memory_int| v_arrayElimCell_420 v_ArrVal_1580) |v_ULTIMATE.start_main_~l~0#1.base_119| v_ArrVal_1590))) (let ((.cse4 (select .cse5 |c_ULTIMATE.start_main_~l~0#1.base|))) (or (= v_arrayElimCell_420 |v_ULTIMATE.start_main_~l~0#1.base_119|) (not (= (_ bv1 32) (select v_ArrVal_1590 (_ bv4 32)))) (not (= (_ bv2 32) (select .cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (select .cse4 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (= (select (select .cse5 v_arrayElimCell_420) (_ bv8 32)) (_ bv2 32)))))) (forall ((v_ArrVal_1590 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_90 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_119| (_ BitVec 32)) (v_arrayElimArr_89 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse8 (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_119| v_ArrVal_1590))) (let ((.cse6 (select .cse8 (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_119| v_arrayElimArr_89) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse7 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_119| v_arrayElimArr_90) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select v_arrayElimArr_90 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_119|))) (not (= (_ bv1 32) (select v_ArrVal_1590 (_ bv4 32)))) (not (= (_ bv2 32) (select .cse6 (bvadd (_ bv8 32) .cse7)))) (not (= (select v_arrayElimArr_89 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (= (_ bv2 32) (select (select .cse8 |c_ULTIMATE.start_main_~l~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|))) (not (= (_ bv0 32) (select .cse6 (bvadd (_ bv4 32) .cse7)))))))) (not (bvsgt .cse9 (_ bv3 32))) (or (not (= .cse9 (_ bv0 32))) (not (= (_ bv2 32) .cse10))) (forall ((|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32)) (v_ArrVal_1651 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1658 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_124| (_ BitVec 32)) (v_arrayElimCell_440 (_ BitVec 32)) (v_ArrVal_1661 (_ BitVec 32)) (v_ArrVal_1656 (_ BitVec 1))) (let ((.cse13 (store |c_#memory_int| v_arrayElimCell_440 v_ArrVal_1651))) (let ((.cse11 (store (store (store (select .cse13 |v_ULTIMATE.start_main_~l~0#1.base_124|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) v_ArrVal_1658) (_ bv0 32) v_ArrVal_1661))) (let ((.cse12 (select (store .cse13 |v_ULTIMATE.start_main_~l~0#1.base_124| .cse11) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_440 v_ArrVal_1656) |v_ULTIMATE.start_main_~l~0#1.base_124|))))) (not (= (_ bv1 32) (select .cse11 (_ bv4 32)))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_1656) (_ bv1 1)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_arrayElimCell_440)))) (not (= (_ bv2 32) (select .cse12 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (select .cse12 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32)))))))) (= |c_ULTIMATE.start_main_~l~0#1.offset| (_ bv0 32)) (exists ((v_arrayElimCell_424 (_ BitVec 1))) (let ((.cse14 (bvneg (bvneg v_arrayElimCell_424)))) (and (= (_ bv0 1) (bvadd (bvneg .cse14) (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32))))))) (= (_ bv0 1) (bvadd .cse14 (_ bv1 1)))))) (not .cse15) (let ((.cse16 (not (bvsgt .cse23 (_ bv3 32)))) (.cse17 (not (bvslt .cse22 (_ bv0 32)))) (.cse18 (not (bvslt .cse23 (_ bv0 32)))) (.cse20 (not (bvsgt .cse22 (_ bv3 32))))) (or .cse15 (and .cse16 .cse17 .cse18 .cse19 .cse20) (and .cse16 .cse17 .cse18 .cse20 .cse21))) (not (bvslt .cse9 (_ bv0 32))) (or .cse19 .cse21) (forall ((v_arrayElimArr_100 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_101 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_129| (_ BitVec 32)) (v_ArrVal_1735 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse24 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_129| v_ArrVal_1735) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_129| v_arrayElimArr_100) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse25 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_129| v_arrayElimArr_101) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select v_arrayElimArr_101 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv2 32) (select .cse24 (bvadd .cse25 (_ bv8 32))))) (not (= (select .cse24 (bvadd .cse25 (_ bv4 32))) (_ bv0 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_129|))) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_100 (_ bv0 32))))))) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~l~0#1.base|)) (_ bv1 1))) (not (bvslt .cse10 (_ bv0 32))) (not (bvsgt .cse10 (_ bv3 32))) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32)) (_ bv0 32))))))) is different from false [2021-11-23 17:12:56,329 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse27 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32)))) (let ((.cse28 (select |c_#memory_int| .cse27))) (let ((.cse23 (select .cse28 (_ bv8 32))) (.cse22 (select .cse28 (_ bv4 32))) (.cse26 (select |c_#memory_int| |c_ULTIMATE.start_main_~l~0#1.base|))) (let ((.cse15 (= .cse27 |c_ULTIMATE.start_main_~l~0#1.base|)) (.cse9 (select .cse26 (_ bv4 32))) (.cse19 (not (= .cse22 (_ bv0 32)))) (.cse21 (not (= (_ bv2 32) .cse23))) (.cse10 (select .cse26 (_ bv8 32)))) (and (forall ((v_arrayElimArr_95 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32)) (v_arrayElimArr_96 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1658 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_124| (_ BitVec 32)) (v_ArrVal_1661 (_ BitVec 32))) (let ((.cse2 (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_124|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) v_ArrVal_1658) (_ bv0 32) v_ArrVal_1661))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_124| .cse2) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_124| v_arrayElimArr_95) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_124| v_arrayElimArr_96) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_124|)))) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv0 32))) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_95 (_ bv0 32)))) (not (= (select v_arrayElimArr_96 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv2 32) (select .cse0 (bvadd .cse1 (_ bv8 32))))) (not (= (select .cse2 (_ bv4 32)) (_ bv1 32))))))) (forall ((v_arrayElimCell_456 (_ BitVec 32)) (v_ArrVal_1732 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1731 (_ BitVec 1)) (|v_ULTIMATE.start_main_~l~0#1.base_129| (_ BitVec 32)) (v_ArrVal_1735 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (store (store |c_#memory_int| v_arrayElimCell_456 v_ArrVal_1732) |v_ULTIMATE.start_main_~l~0#1.base_129| v_ArrVal_1735) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_1731) (_ bv1 1)))) (not (= (select .cse3 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (select .cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv2 32))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_456 v_ArrVal_1731) |v_ULTIMATE.start_main_~l~0#1.base_129|))))) (not (= (_ bv0 1) (select |c_#valid| v_arrayElimCell_456)))))) (forall ((v_ArrVal_1580 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_420 (_ BitVec 32)) (v_ArrVal_1590 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_119| (_ BitVec 32))) (let ((.cse5 (store (store |c_#memory_int| v_arrayElimCell_420 v_ArrVal_1580) |v_ULTIMATE.start_main_~l~0#1.base_119| v_ArrVal_1590))) (let ((.cse4 (select .cse5 |c_ULTIMATE.start_main_~l~0#1.base|))) (or (= v_arrayElimCell_420 |v_ULTIMATE.start_main_~l~0#1.base_119|) (not (= (_ bv1 32) (select v_ArrVal_1590 (_ bv4 32)))) (not (= (_ bv2 32) (select .cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (select .cse4 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (= (select (select .cse5 v_arrayElimCell_420) (_ bv8 32)) (_ bv2 32)))))) (not (bvsgt |c_ULTIMATE.start_main_~ev2~0#1| (_ bv3 32))) (forall ((v_ArrVal_1590 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_90 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_119| (_ BitVec 32)) (v_arrayElimArr_89 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse8 (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_119| v_ArrVal_1590))) (let ((.cse6 (select .cse8 (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_119| v_arrayElimArr_89) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse7 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_119| v_arrayElimArr_90) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select v_arrayElimArr_90 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_119|))) (not (= (_ bv1 32) (select v_ArrVal_1590 (_ bv4 32)))) (not (= (_ bv2 32) (select .cse6 (bvadd (_ bv8 32) .cse7)))) (not (= (select v_arrayElimArr_89 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (= (_ bv2 32) (select (select .cse8 |c_ULTIMATE.start_main_~l~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|))) (not (= (_ bv0 32) (select .cse6 (bvadd (_ bv4 32) .cse7)))))))) (not (bvsgt .cse9 (_ bv3 32))) (or (not (= .cse9 (_ bv0 32))) (not (= (_ bv2 32) .cse10))) (forall ((|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32)) (v_ArrVal_1651 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1658 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_124| (_ BitVec 32)) (v_arrayElimCell_440 (_ BitVec 32)) (v_ArrVal_1661 (_ BitVec 32)) (v_ArrVal_1656 (_ BitVec 1))) (let ((.cse13 (store |c_#memory_int| v_arrayElimCell_440 v_ArrVal_1651))) (let ((.cse11 (store (store (store (select .cse13 |v_ULTIMATE.start_main_~l~0#1.base_124|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) v_ArrVal_1658) (_ bv0 32) v_ArrVal_1661))) (let ((.cse12 (select (store .cse13 |v_ULTIMATE.start_main_~l~0#1.base_124| .cse11) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_440 v_ArrVal_1656) |v_ULTIMATE.start_main_~l~0#1.base_124|))))) (not (= (_ bv1 32) (select .cse11 (_ bv4 32)))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_1656) (_ bv1 1)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_arrayElimCell_440)))) (not (= (_ bv2 32) (select .cse12 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (select .cse12 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32)))))))) (= |c_ULTIMATE.start_main_~l~0#1.offset| (_ bv0 32)) (exists ((v_arrayElimCell_424 (_ BitVec 1))) (let ((.cse14 (bvneg (bvneg v_arrayElimCell_424)))) (and (= (_ bv0 1) (bvadd (bvneg .cse14) (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32))))))) (= (_ bv0 1) (bvadd .cse14 (_ bv1 1)))))) (not (bvslt |c_ULTIMATE.start_main_~ev2~0#1| (_ bv0 32))) (not .cse15) (let ((.cse16 (not (bvsgt .cse23 (_ bv3 32)))) (.cse17 (not (bvslt .cse22 (_ bv0 32)))) (.cse18 (not (bvslt .cse23 (_ bv0 32)))) (.cse20 (not (bvsgt .cse22 (_ bv3 32))))) (or .cse15 (and .cse16 .cse17 .cse18 .cse19 .cse20) (and .cse16 .cse17 .cse18 .cse20 .cse21))) (not (bvslt .cse9 (_ bv0 32))) (or .cse19 .cse21) (forall ((v_arrayElimArr_100 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_101 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_129| (_ BitVec 32)) (v_ArrVal_1735 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse24 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_129| v_ArrVal_1735) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_129| v_arrayElimArr_100) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse25 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_129| v_arrayElimArr_101) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select v_arrayElimArr_101 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv2 32) (select .cse24 (bvadd .cse25 (_ bv8 32))))) (not (= (select .cse24 (bvadd .cse25 (_ bv4 32))) (_ bv0 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_129|))) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_100 (_ bv0 32))))))) (not (bvslt |c_ULTIMATE.start_main_~ev1~0#1| (_ bv0 32))) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~l~0#1.base|)) (_ bv1 1))) (not (bvsgt |c_ULTIMATE.start_main_~ev1~0#1| (_ bv3 32))) (not (bvslt .cse10 (_ bv0 32))) (not (bvsgt .cse10 (_ bv3 32))) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32)) (_ bv0 32))))))) is different from false [2021-11-23 17:12:57,544 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse19 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32)))) (let ((.cse38 (select (select |c_#memory_$Pointer$.base| .cse19) (_ bv0 32)))) (let ((.cse39 (select |c_#memory_int| .cse19)) (.cse40 (select |c_#memory_int| .cse38))) (let ((.cse36 (select .cse40 (_ bv8 32))) (.cse35 (select .cse40 (_ bv4 32))) (.cse28 (select .cse39 (_ bv8 32))) (.cse27 (select .cse39 (_ bv4 32))) (.cse37 (select |c_#memory_int| |c_ULTIMATE.start_main_~l~0#1.base|))) (let ((.cse20 (= .cse19 |c_ULTIMATE.start_main_~l~0#1.base|)) (.cse13 (select .cse37 (_ bv4 32))) (.cse24 (not (= .cse27 (_ bv0 32)))) (.cse26 (not (= (_ bv2 32) .cse28))) (.cse11 (not (= .cse35 (_ bv0 32)))) (.cse10 (not (= .cse36 (_ bv2 32)))) (.cse6 (= .cse38 |c_ULTIMATE.start_main_~l~0#1.base|)) (.cse12 (= .cse19 .cse38)) (.cse14 (select .cse37 (_ bv8 32)))) (and (forall ((v_arrayElimArr_95 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32)) (v_arrayElimArr_96 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1658 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_124| (_ BitVec 32)) (v_ArrVal_1661 (_ BitVec 32))) (let ((.cse2 (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_124|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) v_ArrVal_1658) (_ bv0 32) v_ArrVal_1661))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_124| .cse2) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_124| v_arrayElimArr_95) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_124| v_arrayElimArr_96) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_124|)))) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv0 32))) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_95 (_ bv0 32)))) (not (= (select v_arrayElimArr_96 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv2 32) (select .cse0 (bvadd .cse1 (_ bv8 32))))) (not (= (select .cse2 (_ bv4 32)) (_ bv1 32))))))) (forall ((v_arrayElimCell_456 (_ BitVec 32)) (v_ArrVal_1732 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1731 (_ BitVec 1)) (|v_ULTIMATE.start_main_~l~0#1.base_129| (_ BitVec 32)) (v_ArrVal_1735 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (store (store |c_#memory_int| v_arrayElimCell_456 v_ArrVal_1732) |v_ULTIMATE.start_main_~l~0#1.base_129| v_ArrVal_1735) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_1731) (_ bv1 1)))) (not (= (select .cse3 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (select .cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv2 32))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_456 v_ArrVal_1731) |v_ULTIMATE.start_main_~l~0#1.base_129|))))) (not (= (_ bv0 1) (select |c_#valid| v_arrayElimCell_456)))))) (forall ((v_ArrVal_1580 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_420 (_ BitVec 32)) (v_ArrVal_1590 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_119| (_ BitVec 32))) (let ((.cse5 (store (store |c_#memory_int| v_arrayElimCell_420 v_ArrVal_1580) |v_ULTIMATE.start_main_~l~0#1.base_119| v_ArrVal_1590))) (let ((.cse4 (select .cse5 |c_ULTIMATE.start_main_~l~0#1.base|))) (or (= v_arrayElimCell_420 |v_ULTIMATE.start_main_~l~0#1.base_119|) (not (= (_ bv1 32) (select v_ArrVal_1590 (_ bv4 32)))) (not (= (_ bv2 32) (select .cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (select .cse4 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (= (select (select .cse5 v_arrayElimCell_420) (_ bv8 32)) (_ bv2 32)))))) (not .cse6) (forall ((v_ArrVal_1590 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_90 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_119| (_ BitVec 32)) (v_arrayElimArr_89 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse9 (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_119| v_ArrVal_1590))) (let ((.cse7 (select .cse9 (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_119| v_arrayElimArr_89) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse8 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_119| v_arrayElimArr_90) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select v_arrayElimArr_90 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_119|))) (not (= (_ bv1 32) (select v_ArrVal_1590 (_ bv4 32)))) (not (= (_ bv2 32) (select .cse7 (bvadd (_ bv8 32) .cse8)))) (not (= (select v_arrayElimArr_89 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (= (_ bv2 32) (select (select .cse9 |c_ULTIMATE.start_main_~l~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|))) (not (= (_ bv0 32) (select .cse7 (bvadd (_ bv4 32) .cse8)))))))) (or .cse10 .cse11) (not .cse12) (not (bvsgt .cse13 (_ bv3 32))) (or (not (= .cse13 (_ bv0 32))) (not (= (_ bv2 32) .cse14))) (forall ((|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32)) (v_ArrVal_1651 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1658 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_124| (_ BitVec 32)) (v_arrayElimCell_440 (_ BitVec 32)) (v_ArrVal_1661 (_ BitVec 32)) (v_ArrVal_1656 (_ BitVec 1))) (let ((.cse17 (store |c_#memory_int| v_arrayElimCell_440 v_ArrVal_1651))) (let ((.cse15 (store (store (store (select .cse17 |v_ULTIMATE.start_main_~l~0#1.base_124|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) v_ArrVal_1658) (_ bv0 32) v_ArrVal_1661))) (let ((.cse16 (select (store .cse17 |v_ULTIMATE.start_main_~l~0#1.base_124| .cse15) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_440 v_ArrVal_1656) |v_ULTIMATE.start_main_~l~0#1.base_124|))))) (not (= (_ bv1 32) (select .cse15 (_ bv4 32)))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_1656) (_ bv1 1)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_arrayElimCell_440)))) (not (= (_ bv2 32) (select .cse16 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (select .cse16 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32)))))))) (= |c_ULTIMATE.start_main_~l~0#1.offset| (_ bv0 32)) (exists ((v_arrayElimCell_424 (_ BitVec 1))) (let ((.cse18 (bvneg (bvneg v_arrayElimCell_424)))) (and (= (_ bv0 1) (bvadd (bvneg .cse18) (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32))))))) (= (_ bv0 1) (bvadd .cse18 (_ bv1 1)))))) (= (select (select |c_#memory_$Pointer$.offset| .cse19) (_ bv0 32)) (_ bv0 32)) (not .cse20) (let ((.cse21 (not (bvsgt .cse28 (_ bv3 32)))) (.cse22 (not (bvslt .cse27 (_ bv0 32)))) (.cse23 (not (bvslt .cse28 (_ bv0 32)))) (.cse25 (not (bvsgt .cse27 (_ bv3 32))))) (or .cse20 (and .cse21 .cse22 .cse23 .cse24 .cse25) (and .cse21 .cse22 .cse23 .cse25 .cse26))) (not (bvslt .cse13 (_ bv0 32))) (or .cse24 .cse26) (forall ((v_arrayElimArr_100 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_101 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_129| (_ BitVec 32)) (v_ArrVal_1735 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse29 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_129| v_ArrVal_1735) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_129| v_arrayElimArr_100) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse30 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_129| v_arrayElimArr_101) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select v_arrayElimArr_101 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv2 32) (select .cse29 (bvadd .cse30 (_ bv8 32))))) (not (= (select .cse29 (bvadd .cse30 (_ bv4 32))) (_ bv0 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_129|))) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_100 (_ bv0 32))))))) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~l~0#1.base|)) (_ bv1 1))) (let ((.cse31 (not (bvslt .cse36 (_ bv0 32)))) (.cse32 (not (bvsgt .cse36 (_ bv3 32)))) (.cse33 (not (bvslt .cse35 (_ bv0 32)))) (.cse34 (not (bvsgt .cse35 (_ bv3 32))))) (or (and .cse31 .cse32 .cse11 .cse33 .cse34) (and .cse31 .cse32 .cse10 .cse33 .cse34) .cse6 .cse12)) (not (bvslt .cse14 (_ bv0 32))) (not (bvsgt .cse14 (_ bv3 32))) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32)) (_ bv0 32)))))))) is different from false [2021-11-23 17:13:11,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:13:11,806 INFO L93 Difference]: Finished difference Result 272 states and 347 transitions. [2021-11-23 17:13:11,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-11-23 17:13:11,807 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 3.358490566037736) internal successors, (178), 53 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-23 17:13:11,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:13:11,809 INFO L225 Difference]: With dead ends: 272 [2021-11-23 17:13:11,809 INFO L226 Difference]: Without dead ends: 270 [2021-11-23 17:13:11,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 195 SyntacticMatches, 1 SemanticMatches, 98 ConstructedPredicates, 11 IntricatePredicates, 0 DeprecatedPredicates, 2180 ImplicationChecksByTransitivity, 19.7s TimeCoverageRelationStatistics Valid=972, Invalid=6893, Unknown=11, NotChecked=2024, Total=9900 [2021-11-23 17:13:11,812 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 180 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 1827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1220 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-23 17:13:11,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 525 Invalid, 1827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 562 Invalid, 0 Unknown, 1220 Unchecked, 1.8s Time] [2021-11-23 17:13:11,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-11-23 17:13:11,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 175. [2021-11-23 17:13:11,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 174 states have (on average 1.3505747126436782) internal successors, (235), 174 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:13:11,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 235 transitions. [2021-11-23 17:13:11,849 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 235 transitions. Word has length 41 [2021-11-23 17:13:11,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:13:11,849 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 235 transitions. [2021-11-23 17:13:11,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 3.358490566037736) internal successors, (178), 53 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:13:11,850 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 235 transitions. [2021-11-23 17:13:11,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-23 17:13:11,850 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:13:11,851 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:13:11,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-11-23 17:13:12,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-11-23 17:13:12,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (36)] Forceful destruction successful, exit code 0 [2021-11-23 17:13:12,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt [2021-11-23 17:13:12,451 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:13:12,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:13:12,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1708683080, now seen corresponding path program 1 times [2021-11-23 17:13:12,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:13:12,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361537576] [2021-11-23 17:13:12,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:13:12,452 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:13:12,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:13:12,454 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:13:12,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-11-23 17:13:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:13:12,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-23 17:13:12,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:13:12,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:13:12,829 INFO L354 Elim1Store]: treesize reduction 74, result has 20.4 percent of original size [2021-11-23 17:13:12,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 26 [2021-11-23 17:13:12,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:13:12,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:13:12,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 48 [2021-11-23 17:13:12,993 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:13:12,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 26 treesize of output 37 [2021-11-23 17:13:13,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:13:13,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:13:13,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:13:13,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 117 [2021-11-23 17:13:13,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:13:13,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 74 [2021-11-23 17:13:13,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:13:13,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 92 [2021-11-23 17:13:13,352 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-23 17:13:13,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 38 [2021-11-23 17:13:13,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-23 17:13:15,349 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 17:13:15,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 212 treesize of output 103 [2021-11-23 17:13:15,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 48 [2021-11-23 17:13:15,591 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 10 proven. 35 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 17:13:15,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:13:18,148 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:13:18,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:13:18,156 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:13:18,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:13:18,279 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_106 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_134| (_ BitVec 32)) (v_arrayElimArr_105 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.offset_134| (_ BitVec 32)) (v_ArrVal_1810 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_134| v_ArrVal_1810) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_134| v_arrayElimArr_105) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_134| v_arrayElimArr_106) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_134|))) (not (= (_ bv1 32) (select .cse0 (bvadd (_ bv4 32) .cse1)))) (not (= (select v_arrayElimArr_105 |v_ULTIMATE.start_main_~l~0#1.offset_134|) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_106 |v_ULTIMATE.start_main_~l~0#1.offset_134|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse0 (bvadd (_ bv8 32) .cse1)) (_ bv3 32)))))) is different from false [2021-11-23 17:13:18,677 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:13:18,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 121 [2021-11-23 17:13:18,681 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:13:18,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 91 [2021-11-23 17:13:18,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 108 treesize of output 88 [2021-11-23 17:13:18,703 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:13:18,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 61 [2021-11-23 17:13:18,706 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:13:18,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-11-23 17:13:18,817 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_134| (_ BitVec 32)) (v_ArrVal_1803 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1804 (_ BitVec 1)) (v_arrayElimCell_472 (_ BitVec 32)) (v_ArrVal_1810 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_472 v_ArrVal_1803) |v_ULTIMATE.start_main_~l~0#1.base_134| v_ArrVal_1810) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg v_ArrVal_1804))) (_ bv1 1)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_arrayElimCell_472)))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_472 v_ArrVal_1804) |v_ULTIMATE.start_main_~l~0#1.base_134|))))) (not (= (_ bv1 32) (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32)))))) is different from false [2021-11-23 17:13:19,205 INFO L354 Elim1Store]: treesize reduction 106, result has 0.9 percent of original size [2021-11-23 17:13:19,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 1 [2021-11-23 17:13:19,222 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 13 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 14 not checked. [2021-11-23 17:13:19,222 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:13:19,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1361537576] [2021-11-23 17:13:19,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1361537576] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:13:19,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1407403835] [2021-11-23 17:13:19,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:13:19,223 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:13:19,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:13:19,223 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:13:19,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2021-11-23 17:13:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:13:19,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 58 conjunts are in the unsatisfiable core [2021-11-23 17:13:19,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:13:19,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:13:19,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:13:19,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:13:19,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2021-11-23 17:13:19,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:13:19,853 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:13:19,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 26 treesize of output 37 [2021-11-23 17:13:19,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:13:20,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:13:20,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 53 [2021-11-23 17:13:20,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:13:20,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:13:20,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2021-11-23 17:13:20,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:13:20,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 52 [2021-11-23 17:13:20,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:13:20,154 INFO L354 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2021-11-23 17:13:20,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 30 [2021-11-23 17:13:20,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-11-23 17:13:22,806 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-23 17:13:22,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 57 [2021-11-23 17:13:22,822 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-23 17:13:22,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2021-11-23 17:13:23,179 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 13 proven. 32 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 17:13:23,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:13:23,813 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:13:23,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 89 [2021-11-23 17:13:23,828 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:13:23,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 83 [2021-11-23 17:13:24,156 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~ev2~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32)) (v_arrayElimArr_111 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_112 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_139| (_ BitVec 32)) (v_ArrVal_1882 (_ BitVec 32))) (let ((.cse2 (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_139|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) |ULTIMATE.start_main_~ev2~0#1|) (_ bv0 32) v_ArrVal_1882))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_139| .cse2) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_139| v_arrayElimArr_111) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_139| v_arrayElimArr_112) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (= |ULTIMATE.start_main_~ev2~0#1| (_ bv3 32)) (not (= (_ bv3 32) (select .cse0 (bvadd (_ bv8 32) .cse1)))) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv1 32))) (not (= (select v_arrayElimArr_111 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_112 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_139|)))) (not (= (select .cse2 (_ bv4 32)) (_ bv1 32))))))) is different from false [2021-11-23 17:13:24,965 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:13:24,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 153 treesize of output 139 [2021-11-23 17:13:24,971 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:13:24,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 115 [2021-11-23 17:13:24,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 157 treesize of output 131 [2021-11-23 17:13:24,995 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:13:24,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 83 [2021-11-23 17:13:24,999 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:13:25,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2021-11-23 17:13:25,272 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~ev2~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32)) (v_ArrVal_1881 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1880 (_ BitVec 1)) (|v_ULTIMATE.start_main_~l~0#1.base_139| (_ BitVec 32)) (v_arrayElimCell_491 (_ BitVec 32)) (v_ArrVal_1882 (_ BitVec 32))) (let ((.cse2 (store |c_#memory_int| v_arrayElimCell_491 v_ArrVal_1881))) (let ((.cse1 (store (store (store (select .cse2 |v_ULTIMATE.start_main_~l~0#1.base_139|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) |ULTIMATE.start_main_~ev2~0#1|) (_ bv0 32) v_ArrVal_1882))) (let ((.cse0 (select (store .cse2 |v_ULTIMATE.start_main_~l~0#1.base_139| .cse1) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_491)))))) (= |ULTIMATE.start_main_~ev2~0#1| (_ bv3 32)) (not (= (_ bv0 1) (bvadd (bvneg (bvneg v_ArrVal_1880)) (_ bv1 1)))) (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (select .cse1 (_ bv4 32)) (_ bv1 32))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_491 v_ArrVal_1880) |v_ULTIMATE.start_main_~l~0#1.base_139|)))))))))) is different from false [2021-11-23 17:13:26,110 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 13 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 14 not checked. [2021-11-23 17:13:26,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1407403835] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:13:26,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566197612] [2021-11-23 17:13:26,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:13:26,111 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:13:26,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:13:26,111 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:13:26,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-11-23 17:13:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:13:26,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-23 17:13:26,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:13:26,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:13:26,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:13:26,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:13:26,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:13:26,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2021-11-23 17:13:26,554 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:13:26,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 30 treesize of output 41 [2021-11-23 17:13:26,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:13:26,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:13:26,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:13:26,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 63 [2021-11-23 17:13:26,900 INFO L354 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2021-11-23 17:13:26,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 35 [2021-11-23 17:13:26,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-23 17:13:26,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 34 [2021-11-23 17:13:26,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-23 17:13:28,442 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 17:13:28,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 58 [2021-11-23 17:13:28,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 10 [2021-11-23 17:13:28,662 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 15 proven. 30 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 17:13:28,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:13:28,915 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:13:28,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:13:28,923 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:13:28,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:13:29,041 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_144| (_ BitVec 32)) (v_arrayElimArr_117 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_116 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1963 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.offset_144| (_ BitVec 32))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_144| v_ArrVal_1963) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_144| v_arrayElimArr_116) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_144| v_arrayElimArr_117) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv1 32))) (not (= (select v_arrayElimArr_116 |v_ULTIMATE.start_main_~l~0#1.offset_144|) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_144|))) (not (= (select .cse0 (bvadd .cse1 (_ bv8 32))) (_ bv3 32))) (not (= (select v_arrayElimArr_117 |v_ULTIMATE.start_main_~l~0#1.offset_144|) |c_ULTIMATE.start_main_~l~0#1.offset|))))) is different from false [2021-11-23 17:13:29,435 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:13:29,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 121 [2021-11-23 17:13:29,439 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:13:29,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 91 [2021-11-23 17:13:29,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 109 treesize of output 89 [2021-11-23 17:13:29,460 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:13:29,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 61 [2021-11-23 17:13:29,464 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:13:29,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-11-23 17:13:29,576 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_144| (_ BitVec 32)) (v_ArrVal_1958 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1963 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_507 (_ BitVec 32)) (v_ArrVal_1953 (_ BitVec 1))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_507 v_ArrVal_1958) |v_ULTIMATE.start_main_~l~0#1.base_144| v_ArrVal_1963) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_507 v_ArrVal_1953) |v_ULTIMATE.start_main_~l~0#1.base_144|))))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_arrayElimCell_507)))) (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_1953) (_ bv1 1))))))) is different from false [2021-11-23 17:13:29,957 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 15 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 14 not checked. [2021-11-23 17:13:29,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566197612] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:13:29,957 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 17:13:29,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 13, 13, 11, 11] total 41 [2021-11-23 17:13:29,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607120703] [2021-11-23 17:13:29,958 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 17:13:29,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-11-23 17:13:29,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:13:29,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-11-23 17:13:29,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1067, Unknown=7, NotChecked=426, Total=1640 [2021-11-23 17:13:29,960 INFO L87 Difference]: Start difference. First operand 175 states and 235 transitions. Second operand has 41 states, 41 states have (on average 4.048780487804878) internal successors, (166), 41 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:13:44,461 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse25 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|))) (let ((.cse24 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~l~0#1.base|)) (.cse0 (select .cse25 |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse22 (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~l~0#1.base|))) (.cse8 (select |c_#memory_int| .cse0)) (.cse9 (select .cse24 |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~l~0#1.base|))) (let ((.cse3 (select .cse5 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse4 (select .cse8 (bvadd .cse9 (_ bv4 32)))) (.cse7 (select .cse25 (_ bv0 32))) (.cse10 (bvneg .cse22))) (and (not (= .cse0 |c_ULTIMATE.start_main_~l~0#1.base|)) (forall ((v_arrayElimArr_106 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_134| (_ BitVec 32)) (v_arrayElimArr_105 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.offset_134| (_ BitVec 32)) (v_ArrVal_1810 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_134| v_ArrVal_1810) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_134| v_arrayElimArr_105) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse2 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_134| v_arrayElimArr_106) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_134|))) (not (= (_ bv1 32) (select .cse1 (bvadd (_ bv4 32) .cse2)))) (not (= (select v_arrayElimArr_105 |v_ULTIMATE.start_main_~l~0#1.offset_134|) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_106 |v_ULTIMATE.start_main_~l~0#1.offset_134|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse1 (bvadd (_ bv8 32) .cse2)) (_ bv3 32)))))) (not (bvsgt .cse3 (_ bv3 32))) (not (bvsgt .cse4 (_ bv3 32))) (or (not (= .cse3 (_ bv1 32))) (not (= (select .cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32)))) (not (bvslt .cse3 (_ bv0 32))) (not (bvslt .cse4 (_ bv0 32))) (let ((.cse6 (select |c_#memory_int| .cse7))) (or (not (= (_ bv3 32) (select .cse6 (_ bv8 32)))) (not (= (_ bv1 32) (select .cse6 (_ bv4 32)))))) (or (not (= .cse4 (_ bv1 32))) (not (= (_ bv3 32) (select .cse8 (bvadd .cse9 (_ bv8 32)))))) (= (_ bv0 1) (bvadd (bvneg .cse10) (_ bv1 1))) (exists ((v_arrayElimCell_460 (_ BitVec 1))) (let ((.cse11 (bvneg (bvneg v_arrayElimCell_460)))) (and (= (_ bv0 1) (bvadd .cse11 (_ bv1 1))) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) .cse11))))) (= |c_ULTIMATE.start_main_~l~0#1.offset| (_ bv0 32)) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_144| (_ BitVec 32)) (v_ArrVal_1958 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1963 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_507 (_ BitVec 32)) (v_ArrVal_1953 (_ BitVec 1))) (let ((.cse12 (select (store (store |c_#memory_int| v_arrayElimCell_507 v_ArrVal_1958) |v_ULTIMATE.start_main_~l~0#1.base_144| v_ArrVal_1963) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_507 v_ArrVal_1953) |v_ULTIMATE.start_main_~l~0#1.base_144|))))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_arrayElimCell_507)))) (not (= (select .cse12 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (select .cse12 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_1953) (_ bv1 1))))))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_144| (_ BitVec 32)) (v_arrayElimArr_117 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_116 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1963 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.offset_144| (_ BitVec 32))) (let ((.cse13 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_144| v_ArrVal_1963) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_144| v_arrayElimArr_116) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse14 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_144| v_arrayElimArr_117) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select .cse13 (bvadd (_ bv4 32) .cse14)) (_ bv1 32))) (not (= (select v_arrayElimArr_116 |v_ULTIMATE.start_main_~l~0#1.offset_144|) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_144|))) (not (= (select .cse13 (bvadd .cse14 (_ bv8 32))) (_ bv3 32))) (not (= (select v_arrayElimArr_117 |v_ULTIMATE.start_main_~l~0#1.offset_144|) |c_ULTIMATE.start_main_~l~0#1.offset|))))) (not (= .cse7 |c_ULTIMATE.start_main_~l~0#1.base|)) (forall ((|ULTIMATE.start_main_~ev2~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32)) (v_arrayElimArr_111 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_112 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_139| (_ BitVec 32)) (v_ArrVal_1882 (_ BitVec 32))) (let ((.cse17 (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_139|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) |ULTIMATE.start_main_~ev2~0#1|) (_ bv0 32) v_ArrVal_1882))) (let ((.cse15 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_139| .cse17) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_139| v_arrayElimArr_111) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse16 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_139| v_arrayElimArr_112) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (= |ULTIMATE.start_main_~ev2~0#1| (_ bv3 32)) (not (= (_ bv3 32) (select .cse15 (bvadd (_ bv8 32) .cse16)))) (not (= (select .cse15 (bvadd (_ bv4 32) .cse16)) (_ bv1 32))) (not (= (select v_arrayElimArr_111 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_112 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_139|)))) (not (= (select .cse17 (_ bv4 32)) (_ bv1 32))))))) (forall ((|ULTIMATE.start_main_~ev2~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32)) (v_ArrVal_1881 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1880 (_ BitVec 1)) (|v_ULTIMATE.start_main_~l~0#1.base_139| (_ BitVec 32)) (v_arrayElimCell_491 (_ BitVec 32)) (v_ArrVal_1882 (_ BitVec 32))) (let ((.cse20 (store |c_#memory_int| v_arrayElimCell_491 v_ArrVal_1881))) (let ((.cse19 (store (store (store (select .cse20 |v_ULTIMATE.start_main_~l~0#1.base_139|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) |ULTIMATE.start_main_~ev2~0#1|) (_ bv0 32) v_ArrVal_1882))) (let ((.cse18 (select (store .cse20 |v_ULTIMATE.start_main_~l~0#1.base_139| .cse19) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_491)))))) (= |ULTIMATE.start_main_~ev2~0#1| (_ bv3 32)) (not (= (_ bv0 1) (bvadd (bvneg (bvneg v_ArrVal_1880)) (_ bv1 1)))) (not (= (select .cse18 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (select .cse19 (_ bv4 32)) (_ bv1 32))) (not (= (select .cse18 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_491 v_ArrVal_1880) |v_ULTIMATE.start_main_~l~0#1.base_139|)))))))))) (= (_ bv0 1) (bvadd (_ bv1 1) .cse10)) (exists ((v_arrayElimCell_476 (_ BitVec 1))) (let ((.cse21 (bvneg v_arrayElimCell_476))) (and (= (_ bv0 1) (bvadd (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32))) .cse21)) (= (_ bv0 1) (bvadd (bvneg (bvneg .cse21)) (_ bv1 1)))))) (= (_ bv0 1) (bvadd .cse22 (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_134| (_ BitVec 32)) (v_ArrVal_1803 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1804 (_ BitVec 1)) (v_arrayElimCell_472 (_ BitVec 32)) (v_ArrVal_1810 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse23 (select (store (store |c_#memory_int| v_arrayElimCell_472 v_ArrVal_1803) |v_ULTIMATE.start_main_~l~0#1.base_134| v_ArrVal_1810) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg v_ArrVal_1804))) (_ bv1 1)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_arrayElimCell_472)))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_472 v_ArrVal_1804) |v_ULTIMATE.start_main_~l~0#1.base_134|))))) (not (= (_ bv1 32) (select .cse23 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (select .cse23 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32)))))) (or (not (= (select .cse5 (_ bv4 32)) (_ bv1 32))) (not (= (_ bv3 32) (select .cse5 (_ bv8 32))))) (= (select .cse24 (_ bv0 32)) (_ bv0 32))))))) is different from false [2021-11-23 17:13:45,146 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse30 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~l~0#1.base|)) (.cse31 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|))) (let ((.cse0 (select .cse31 |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse13 (select .cse30 |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse11 (select (select |c_#memory_$Pointer$.base| .cse0) .cse13))) (let ((.cse28 (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~l~0#1.base|))) (.cse16 (select |c_#memory_int| .cse11)) (.cse17 (select (select |c_#memory_$Pointer$.offset| .cse0) .cse13)) (.cse12 (select |c_#memory_int| .cse0)) (.cse9 (select |c_#memory_int| |c_ULTIMATE.start_main_~l~0#1.base|)) (.cse8 (select .cse31 (_ bv0 32)))) (let ((.cse5 (select (select |c_#memory_$Pointer$.base| .cse8) (_ bv0 32))) (.cse6 (select .cse9 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse7 (select .cse12 (bvadd .cse13 (_ bv4 32)))) (.cse1 (select .cse16 (bvadd (_ bv4 32) .cse17))) (.cse14 (bvneg .cse28))) (and (not (= .cse0 |c_ULTIMATE.start_main_~l~0#1.base|)) (not (bvslt .cse1 (_ bv0 32))) (forall ((v_arrayElimArr_106 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_134| (_ BitVec 32)) (v_arrayElimArr_105 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.offset_134| (_ BitVec 32)) (v_ArrVal_1810 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_134| v_ArrVal_1810) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_134| v_arrayElimArr_105) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse3 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_134| v_arrayElimArr_106) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_134|))) (not (= (_ bv1 32) (select .cse2 (bvadd (_ bv4 32) .cse3)))) (not (= (select v_arrayElimArr_105 |v_ULTIMATE.start_main_~l~0#1.offset_134|) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_106 |v_ULTIMATE.start_main_~l~0#1.offset_134|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse2 (bvadd (_ bv8 32) .cse3)) (_ bv3 32)))))) (let ((.cse4 (select |c_#memory_int| .cse5))) (or (not (= (select .cse4 (_ bv8 32)) (_ bv3 32))) (not (= (select .cse4 (_ bv4 32)) (_ bv1 32))))) (not (= .cse5 |c_ULTIMATE.start_main_~l~0#1.base|)) (not (bvsgt .cse6 (_ bv3 32))) (not (bvsgt .cse7 (_ bv3 32))) (not (bvsgt .cse1 (_ bv3 32))) (not (= .cse8 .cse5)) (or (not (= .cse6 (_ bv1 32))) (not (= (select .cse9 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32)))) (not (bvslt .cse6 (_ bv0 32))) (not (bvslt .cse7 (_ bv0 32))) (let ((.cse10 (select |c_#memory_int| .cse8))) (or (not (= (_ bv3 32) (select .cse10 (_ bv8 32)))) (not (= (_ bv1 32) (select .cse10 (_ bv4 32)))))) (not (= .cse11 |c_ULTIMATE.start_main_~l~0#1.base|)) (or (not (= .cse7 (_ bv1 32))) (not (= (_ bv3 32) (select .cse12 (bvadd .cse13 (_ bv8 32)))))) (= (_ bv0 1) (bvadd (bvneg .cse14) (_ bv1 1))) (exists ((v_arrayElimCell_460 (_ BitVec 1))) (let ((.cse15 (bvneg (bvneg v_arrayElimCell_460)))) (and (= (_ bv0 1) (bvadd .cse15 (_ bv1 1))) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) .cse15))))) (or (not (= .cse1 (_ bv1 32))) (not (= (_ bv3 32) (select .cse16 (bvadd (_ bv8 32) .cse17))))) (= |c_ULTIMATE.start_main_~l~0#1.offset| (_ bv0 32)) (not (= .cse0 .cse11)) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_144| (_ BitVec 32)) (v_ArrVal_1958 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1963 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_507 (_ BitVec 32)) (v_ArrVal_1953 (_ BitVec 1))) (let ((.cse18 (select (store (store |c_#memory_int| v_arrayElimCell_507 v_ArrVal_1958) |v_ULTIMATE.start_main_~l~0#1.base_144| v_ArrVal_1963) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_507 v_ArrVal_1953) |v_ULTIMATE.start_main_~l~0#1.base_144|))))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_arrayElimCell_507)))) (not (= (select .cse18 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (select .cse18 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_1953) (_ bv1 1))))))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_144| (_ BitVec 32)) (v_arrayElimArr_117 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_116 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1963 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.offset_144| (_ BitVec 32))) (let ((.cse19 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_144| v_ArrVal_1963) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_144| v_arrayElimArr_116) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse20 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_144| v_arrayElimArr_117) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select .cse19 (bvadd (_ bv4 32) .cse20)) (_ bv1 32))) (not (= (select v_arrayElimArr_116 |v_ULTIMATE.start_main_~l~0#1.offset_144|) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_144|))) (not (= (select .cse19 (bvadd .cse20 (_ bv8 32))) (_ bv3 32))) (not (= (select v_arrayElimArr_117 |v_ULTIMATE.start_main_~l~0#1.offset_144|) |c_ULTIMATE.start_main_~l~0#1.offset|))))) (= (select (select |c_#memory_$Pointer$.offset| .cse8) (_ bv0 32)) (_ bv0 32)) (not (= .cse8 |c_ULTIMATE.start_main_~l~0#1.base|)) (forall ((|ULTIMATE.start_main_~ev2~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32)) (v_arrayElimArr_111 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_112 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_139| (_ BitVec 32)) (v_ArrVal_1882 (_ BitVec 32))) (let ((.cse23 (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_139|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) |ULTIMATE.start_main_~ev2~0#1|) (_ bv0 32) v_ArrVal_1882))) (let ((.cse21 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_139| .cse23) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_139| v_arrayElimArr_111) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse22 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_139| v_arrayElimArr_112) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (= |ULTIMATE.start_main_~ev2~0#1| (_ bv3 32)) (not (= (_ bv3 32) (select .cse21 (bvadd (_ bv8 32) .cse22)))) (not (= (select .cse21 (bvadd (_ bv4 32) .cse22)) (_ bv1 32))) (not (= (select v_arrayElimArr_111 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_112 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_139|)))) (not (= (select .cse23 (_ bv4 32)) (_ bv1 32))))))) (not (bvslt |c_ULTIMATE.start_main_~ev1~0#1| (_ bv0 32))) (forall ((|ULTIMATE.start_main_~ev2~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32)) (v_ArrVal_1881 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1880 (_ BitVec 1)) (|v_ULTIMATE.start_main_~l~0#1.base_139| (_ BitVec 32)) (v_arrayElimCell_491 (_ BitVec 32)) (v_ArrVal_1882 (_ BitVec 32))) (let ((.cse26 (store |c_#memory_int| v_arrayElimCell_491 v_ArrVal_1881))) (let ((.cse25 (store (store (store (select .cse26 |v_ULTIMATE.start_main_~l~0#1.base_139|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) |ULTIMATE.start_main_~ev2~0#1|) (_ bv0 32) v_ArrVal_1882))) (let ((.cse24 (select (store .cse26 |v_ULTIMATE.start_main_~l~0#1.base_139| .cse25) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_491)))))) (= |ULTIMATE.start_main_~ev2~0#1| (_ bv3 32)) (not (= (_ bv0 1) (bvadd (bvneg (bvneg v_ArrVal_1880)) (_ bv1 1)))) (not (= (select .cse24 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (select .cse25 (_ bv4 32)) (_ bv1 32))) (not (= (select .cse24 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_491 v_ArrVal_1880) |v_ULTIMATE.start_main_~l~0#1.base_139|)))))))))) (= (_ bv0 1) (bvadd (_ bv1 1) .cse14)) (exists ((v_arrayElimCell_476 (_ BitVec 1))) (let ((.cse27 (bvneg v_arrayElimCell_476))) (and (= (_ bv0 1) (bvadd (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32))) .cse27)) (= (_ bv0 1) (bvadd (bvneg (bvneg .cse27)) (_ bv1 1)))))) (= (_ bv0 1) (bvadd .cse28 (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_134| (_ BitVec 32)) (v_ArrVal_1803 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1804 (_ BitVec 1)) (v_arrayElimCell_472 (_ BitVec 32)) (v_ArrVal_1810 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse29 (select (store (store |c_#memory_int| v_arrayElimCell_472 v_ArrVal_1803) |v_ULTIMATE.start_main_~l~0#1.base_134| v_ArrVal_1810) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg v_ArrVal_1804))) (_ bv1 1)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_arrayElimCell_472)))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_472 v_ArrVal_1804) |v_ULTIMATE.start_main_~l~0#1.base_134|))))) (not (= (_ bv1 32) (select .cse29 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (select .cse29 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32)))))) (or (not (= (select .cse9 (_ bv4 32)) (_ bv1 32))) (not (= (_ bv3 32) (select .cse9 (_ bv8 32))))) (not (bvsgt |c_ULTIMATE.start_main_~ev1~0#1| (_ bv3 32))) (= (select .cse30 (_ bv0 32)) (_ bv0 32)))))))) is different from false [2021-11-23 17:13:45,739 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse30 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~l~0#1.base|)) (.cse31 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|))) (let ((.cse0 (select .cse31 |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse13 (select .cse30 |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse11 (select (select |c_#memory_$Pointer$.base| .cse0) .cse13))) (let ((.cse28 (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~l~0#1.base|))) (.cse16 (select |c_#memory_int| .cse11)) (.cse17 (select (select |c_#memory_$Pointer$.offset| .cse0) .cse13)) (.cse12 (select |c_#memory_int| .cse0)) (.cse9 (select |c_#memory_int| |c_ULTIMATE.start_main_~l~0#1.base|)) (.cse8 (select .cse31 (_ bv0 32)))) (let ((.cse5 (select (select |c_#memory_$Pointer$.base| .cse8) (_ bv0 32))) (.cse6 (select .cse9 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse7 (select .cse12 (bvadd .cse13 (_ bv4 32)))) (.cse1 (select .cse16 (bvadd (_ bv4 32) .cse17))) (.cse14 (bvneg .cse28))) (and (not (= .cse0 |c_ULTIMATE.start_main_~l~0#1.base|)) (not (bvslt .cse1 (_ bv0 32))) (forall ((v_arrayElimArr_106 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_134| (_ BitVec 32)) (v_arrayElimArr_105 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.offset_134| (_ BitVec 32)) (v_ArrVal_1810 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_134| v_ArrVal_1810) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_134| v_arrayElimArr_105) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse3 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_134| v_arrayElimArr_106) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_134|))) (not (= (_ bv1 32) (select .cse2 (bvadd (_ bv4 32) .cse3)))) (not (= (select v_arrayElimArr_105 |v_ULTIMATE.start_main_~l~0#1.offset_134|) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_106 |v_ULTIMATE.start_main_~l~0#1.offset_134|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse2 (bvadd (_ bv8 32) .cse3)) (_ bv3 32)))))) (let ((.cse4 (select |c_#memory_int| .cse5))) (or (not (= (select .cse4 (_ bv8 32)) (_ bv3 32))) (not (= (select .cse4 (_ bv4 32)) (_ bv1 32))))) (not (= .cse5 |c_ULTIMATE.start_main_~l~0#1.base|)) (not (bvsgt .cse6 (_ bv3 32))) (not (bvsgt .cse7 (_ bv3 32))) (not (bvsgt .cse1 (_ bv3 32))) (not (= .cse8 .cse5)) (or (not (= .cse6 (_ bv1 32))) (not (= (select .cse9 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32)))) (not (bvslt .cse6 (_ bv0 32))) (not (bvslt .cse7 (_ bv0 32))) (let ((.cse10 (select |c_#memory_int| .cse8))) (or (not (= (_ bv3 32) (select .cse10 (_ bv8 32)))) (not (= (_ bv1 32) (select .cse10 (_ bv4 32)))))) (not (= .cse11 |c_ULTIMATE.start_main_~l~0#1.base|)) (or (not (= .cse7 (_ bv1 32))) (not (= (_ bv3 32) (select .cse12 (bvadd .cse13 (_ bv8 32)))))) (= (_ bv0 1) (bvadd (bvneg .cse14) (_ bv1 1))) (exists ((v_arrayElimCell_460 (_ BitVec 1))) (let ((.cse15 (bvneg (bvneg v_arrayElimCell_460)))) (and (= (_ bv0 1) (bvadd .cse15 (_ bv1 1))) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) .cse15))))) (or (not (= .cse1 (_ bv1 32))) (not (= (_ bv3 32) (select .cse16 (bvadd (_ bv8 32) .cse17))))) (= |c_ULTIMATE.start_main_~l~0#1.offset| (_ bv0 32)) (not (= .cse0 .cse11)) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_144| (_ BitVec 32)) (v_ArrVal_1958 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1963 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_507 (_ BitVec 32)) (v_ArrVal_1953 (_ BitVec 1))) (let ((.cse18 (select (store (store |c_#memory_int| v_arrayElimCell_507 v_ArrVal_1958) |v_ULTIMATE.start_main_~l~0#1.base_144| v_ArrVal_1963) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_507 v_ArrVal_1953) |v_ULTIMATE.start_main_~l~0#1.base_144|))))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_arrayElimCell_507)))) (not (= (select .cse18 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (select .cse18 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_1953) (_ bv1 1))))))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_144| (_ BitVec 32)) (v_arrayElimArr_117 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_116 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1963 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.offset_144| (_ BitVec 32))) (let ((.cse19 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_144| v_ArrVal_1963) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_144| v_arrayElimArr_116) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse20 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_144| v_arrayElimArr_117) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select .cse19 (bvadd (_ bv4 32) .cse20)) (_ bv1 32))) (not (= (select v_arrayElimArr_116 |v_ULTIMATE.start_main_~l~0#1.offset_144|) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_144|))) (not (= (select .cse19 (bvadd .cse20 (_ bv8 32))) (_ bv3 32))) (not (= (select v_arrayElimArr_117 |v_ULTIMATE.start_main_~l~0#1.offset_144|) |c_ULTIMATE.start_main_~l~0#1.offset|))))) (= (select (select |c_#memory_$Pointer$.offset| .cse8) (_ bv0 32)) (_ bv0 32)) (not (= .cse8 |c_ULTIMATE.start_main_~l~0#1.base|)) (forall ((|ULTIMATE.start_main_~ev2~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32)) (v_arrayElimArr_111 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_112 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_139| (_ BitVec 32)) (v_ArrVal_1882 (_ BitVec 32))) (let ((.cse23 (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_139|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) |ULTIMATE.start_main_~ev2~0#1|) (_ bv0 32) v_ArrVal_1882))) (let ((.cse21 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_139| .cse23) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_139| v_arrayElimArr_111) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse22 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_139| v_arrayElimArr_112) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (= |ULTIMATE.start_main_~ev2~0#1| (_ bv3 32)) (not (= (_ bv3 32) (select .cse21 (bvadd (_ bv8 32) .cse22)))) (not (= (select .cse21 (bvadd (_ bv4 32) .cse22)) (_ bv1 32))) (not (= (select v_arrayElimArr_111 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_112 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_139|)))) (not (= (select .cse23 (_ bv4 32)) (_ bv1 32))))))) (forall ((|ULTIMATE.start_main_~ev2~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32)) (v_ArrVal_1881 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1880 (_ BitVec 1)) (|v_ULTIMATE.start_main_~l~0#1.base_139| (_ BitVec 32)) (v_arrayElimCell_491 (_ BitVec 32)) (v_ArrVal_1882 (_ BitVec 32))) (let ((.cse26 (store |c_#memory_int| v_arrayElimCell_491 v_ArrVal_1881))) (let ((.cse25 (store (store (store (select .cse26 |v_ULTIMATE.start_main_~l~0#1.base_139|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) |ULTIMATE.start_main_~ev2~0#1|) (_ bv0 32) v_ArrVal_1882))) (let ((.cse24 (select (store .cse26 |v_ULTIMATE.start_main_~l~0#1.base_139| .cse25) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_491)))))) (= |ULTIMATE.start_main_~ev2~0#1| (_ bv3 32)) (not (= (_ bv0 1) (bvadd (bvneg (bvneg v_ArrVal_1880)) (_ bv1 1)))) (not (= (select .cse24 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (select .cse25 (_ bv4 32)) (_ bv1 32))) (not (= (select .cse24 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_491 v_ArrVal_1880) |v_ULTIMATE.start_main_~l~0#1.base_139|)))))))))) (= (_ bv0 1) (bvadd (_ bv1 1) .cse14)) (exists ((v_arrayElimCell_476 (_ BitVec 1))) (let ((.cse27 (bvneg v_arrayElimCell_476))) (and (= (_ bv0 1) (bvadd (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32))) .cse27)) (= (_ bv0 1) (bvadd (bvneg (bvneg .cse27)) (_ bv1 1)))))) (= (_ bv0 1) (bvadd .cse28 (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_134| (_ BitVec 32)) (v_ArrVal_1803 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1804 (_ BitVec 1)) (v_arrayElimCell_472 (_ BitVec 32)) (v_ArrVal_1810 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse29 (select (store (store |c_#memory_int| v_arrayElimCell_472 v_ArrVal_1803) |v_ULTIMATE.start_main_~l~0#1.base_134| v_ArrVal_1810) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg v_ArrVal_1804))) (_ bv1 1)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_arrayElimCell_472)))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_472 v_ArrVal_1804) |v_ULTIMATE.start_main_~l~0#1.base_134|))))) (not (= (_ bv1 32) (select .cse29 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (select .cse29 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32)))))) (or (not (= (select .cse9 (_ bv4 32)) (_ bv1 32))) (not (= (_ bv3 32) (select .cse9 (_ bv8 32))))) (= (select .cse30 (_ bv0 32)) (_ bv0 32)))))))) is different from false [2021-11-23 17:13:58,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:13:58,647 INFO L93 Difference]: Finished difference Result 508 states and 677 transitions. [2021-11-23 17:13:58,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-23 17:13:58,647 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 4.048780487804878) internal successors, (166), 41 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-23 17:13:58,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:13:58,650 INFO L225 Difference]: With dead ends: 508 [2021-11-23 17:13:58,650 INFO L226 Difference]: Without dead ends: 493 [2021-11-23 17:13:58,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 221 SyntacticMatches, 5 SemanticMatches, 93 ConstructedPredicates, 9 IntricatePredicates, 1 DeprecatedPredicates, 2030 ImplicationChecksByTransitivity, 30.8s TimeCoverageRelationStatistics Valid=898, Invalid=6413, Unknown=35, NotChecked=1584, Total=8930 [2021-11-23 17:13:58,654 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 347 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1043 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-23 17:13:58,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 750 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 288 Invalid, 0 Unknown, 1043 Unchecked, 2.6s Time] [2021-11-23 17:13:58,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2021-11-23 17:13:58,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 237. [2021-11-23 17:13:58,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 236 states have (on average 1.4872881355932204) internal successors, (351), 236 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:13:58,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 351 transitions. [2021-11-23 17:13:58,760 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 351 transitions. Word has length 42 [2021-11-23 17:13:58,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:13:58,760 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 351 transitions. [2021-11-23 17:13:58,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 4.048780487804878) internal successors, (166), 41 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:13:58,761 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 351 transitions. [2021-11-23 17:13:58,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 17:13:58,761 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:13:58,762 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:13:58,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-11-23 17:13:58,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (39)] Forceful destruction successful, exit code 0 [2021-11-23 17:13:59,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2021-11-23 17:13:59,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:13:59,377 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:13:59,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:13:59,377 INFO L85 PathProgramCache]: Analyzing trace with hash 509367331, now seen corresponding path program 2 times [2021-11-23 17:13:59,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:13:59,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681419500] [2021-11-23 17:13:59,378 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 17:13:59,378 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:13:59,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:13:59,379 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:13:59,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-11-23 17:13:59,679 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 17:13:59,679 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:13:59,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 57 conjunts are in the unsatisfiable core [2021-11-23 17:13:59,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:13:59,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:13:59,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:13:59,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:13:59,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:13:59,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:13:59,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 52 [2021-11-23 17:13:59,911 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:13:59,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 28 treesize of output 39 [2021-11-23 17:14:00,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:14:00,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:14:00,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 113 [2021-11-23 17:14:00,235 INFO L354 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2021-11-23 17:14:00,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 40 [2021-11-23 17:14:00,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 54 [2021-11-23 17:14:00,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-11-23 17:14:00,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-23 17:14:02,768 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 17:14:02,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 211 treesize of output 90 [2021-11-23 17:14:02,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 10 [2021-11-23 17:14:03,142 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 10 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 17:14:03,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:14:03,893 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:14:03,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:14:03,902 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:14:03,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:14:04,022 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_122 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_121 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2038 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_149| (_ BitVec 32))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_149| v_ArrVal_2038) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_149| v_arrayElimArr_121) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_149| v_arrayElimArr_122) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) .cse1)))) (not (= (select v_arrayElimArr_122 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv0 32))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_149|))))) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_121 (_ bv0 32)))) (not (= (select v_ArrVal_2038 (_ bv4 32)) (_ bv1 32)))))) is different from false [2021-11-23 17:14:04,420 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:14:04,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 121 [2021-11-23 17:14:04,424 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:14:04,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 91 [2021-11-23 17:14:04,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 109 treesize of output 89 [2021-11-23 17:14:04,439 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:14:04,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 61 [2021-11-23 17:14:04,442 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:14:04,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-11-23 17:14:04,636 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2031 (_ BitVec 1)) (v_ArrVal_2030 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_523 (_ BitVec 32)) (v_ArrVal_2038 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_149| (_ BitVec 32))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_523 v_ArrVal_2030) |v_ULTIMATE.start_main_~l~0#1.base_149| v_ArrVal_2038) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_523 v_ArrVal_2031) |v_ULTIMATE.start_main_~l~0#1.base_149|))))) (not (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg v_ArrVal_2031))) (_ bv1 1)))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (bvneg (bvneg (select |c_#valid| v_arrayElimCell_523))) (_ bv0 1))) (not (= (select v_ArrVal_2038 (_ bv4 32)) (_ bv1 32)))))) is different from false [2021-11-23 17:14:04,842 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2031 (_ BitVec 1)) (v_ArrVal_2030 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_523 (_ BitVec 32)) (v_ArrVal_2038 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_149| (_ BitVec 32))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_523 v_ArrVal_2030) |v_ULTIMATE.start_main_~l~0#1.base_149| v_ArrVal_2038) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_523)))))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_523 v_ArrVal_2031) |v_ULTIMATE.start_main_~l~0#1.base_149|))))) (not (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg v_ArrVal_2031))) (_ bv1 1)))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (select v_ArrVal_2038 (_ bv4 32)) (_ bv1 32)))))) is different from false [2021-11-23 17:14:05,192 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-23 17:14:05,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 1 [2021-11-23 17:14:05,198 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 12 not checked. [2021-11-23 17:14:05,198 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:14:05,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681419500] [2021-11-23 17:14:05,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [681419500] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:14:05,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [297034862] [2021-11-23 17:14:05,199 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 17:14:05,199 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:14:05,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:14:05,199 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:14:05,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2021-11-23 17:14:05,574 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 17:14:05,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:14:05,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-23 17:14:05,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:14:05,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:14:05,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:14:05,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:14:05,820 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-23 17:14:05,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 21 treesize of output 28 [2021-11-23 17:14:05,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:14:05,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2021-11-23 17:14:06,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:14:06,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:14:06,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 30 [2021-11-23 17:14:06,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:14:06,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2021-11-23 17:14:06,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:14:06,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 54 [2021-11-23 17:14:06,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:14:06,332 INFO L354 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2021-11-23 17:14:06,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 35 [2021-11-23 17:14:06,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-11-23 17:14:08,106 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-23 17:14:08,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 57 [2021-11-23 17:14:08,120 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-23 17:14:08,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2021-11-23 17:14:08,328 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 12 proven. 34 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 17:14:08,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:14:08,681 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:14:08,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:14:08,698 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:14:08,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:14:08,819 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_128 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_154| (_ BitVec 32)) (v_arrayElimArr_127 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2113 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_154| v_ArrVal_2113) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_154| v_arrayElimArr_127) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_154| v_arrayElimArr_128) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) .cse1)))) (not (= (select v_arrayElimArr_127 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_154|)))) (not (= (select v_arrayElimArr_128 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv0 32) (select .cse0 (bvadd (_ bv4 32) .cse1))))))) is different from false [2021-11-23 17:14:09,216 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:14:09,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 129 treesize of output 115 [2021-11-23 17:14:09,220 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:14:09,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 87 [2021-11-23 17:14:09,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 106 treesize of output 86 [2021-11-23 17:14:09,238 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:14:09,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 59 [2021-11-23 17:14:09,242 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:14:09,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2021-11-23 17:14:09,381 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_541 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_154| (_ BitVec 32)) (v_ArrVal_2102 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2113 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2105 (_ BitVec 1))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_541 v_ArrVal_2102) |v_ULTIMATE.start_main_~l~0#1.base_154| v_ArrVal_2113) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv2 32))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_541 v_ArrVal_2105) |v_ULTIMATE.start_main_~l~0#1.base_154|))))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_arrayElimCell_541))))) (not (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg v_ArrVal_2105)))))))) is different from false [2021-11-23 17:14:09,806 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 12 not checked. [2021-11-23 17:14:09,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [297034862] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:14:09,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771279681] [2021-11-23 17:14:09,807 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 17:14:09,807 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:14:09,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:14:09,807 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:14:09,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-11-23 17:14:09,997 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 17:14:09,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:14:10,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-23 17:14:10,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:14:10,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:14:10,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:14:10,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:14:10,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:14:10,128 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:14:10,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 38 [2021-11-23 17:14:10,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2021-11-23 17:14:10,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:14:10,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:14:10,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 54 [2021-11-23 17:14:10,419 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-11-23 17:14:10,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 40 [2021-11-23 17:14:10,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:14:10,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-23 17:14:10,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2021-11-23 17:14:12,025 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 17:14:12,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 58 [2021-11-23 17:14:12,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 10 [2021-11-23 17:14:12,105 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 12 proven. 34 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 17:14:12,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:14:12,362 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:14:12,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:14:12,370 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:14:12,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:14:12,490 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2185 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_133 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_134 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_159| (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.offset_159| (_ BitVec 32))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_159| v_ArrVal_2185) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_159| v_arrayElimArr_133) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_159| v_arrayElimArr_134) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select v_arrayElimArr_133 |v_ULTIMATE.start_main_~l~0#1.offset_159|) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_159|))) (not (= (select .cse0 (bvadd (_ bv8 32) .cse1)) (_ bv2 32))) (not (= (select v_arrayElimArr_134 |v_ULTIMATE.start_main_~l~0#1.offset_159|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv0 32)))))) is different from false [2021-11-23 17:14:12,904 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:14:12,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 121 [2021-11-23 17:14:12,908 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:14:12,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 91 [2021-11-23 17:14:12,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 106 treesize of output 86 [2021-11-23 17:14:12,922 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:14:12,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 61 [2021-11-23 17:14:12,925 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:14:12,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-11-23 17:14:13,044 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2185 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2175 (_ BitVec 1)) (v_arrayElimCell_557 (_ BitVec 32)) (v_ArrVal_2178 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_159| (_ BitVec 32))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_557 v_ArrVal_2178) |v_ULTIMATE.start_main_~l~0#1.base_159| v_ArrVal_2185) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_2175) (_ bv1 1)))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (select (store |c_#valid| v_arrayElimCell_557 v_ArrVal_2175) |v_ULTIMATE.start_main_~l~0#1.base_159|))) (not (= (_ bv0 1) (select |c_#valid| v_arrayElimCell_557)))))) is different from false [2021-11-23 17:14:13,394 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 12 not checked. [2021-11-23 17:14:13,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771279681] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:14:13,394 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 17:14:13,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 11, 11, 11, 11] total 40 [2021-11-23 17:14:13,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294379442] [2021-11-23 17:14:13,394 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 17:14:13,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-11-23 17:14:13,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:14:13,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-11-23 17:14:13,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=946, Unknown=7, NotChecked=476, Total=1560 [2021-11-23 17:14:13,396 INFO L87 Difference]: Start difference. First operand 237 states and 351 transitions. Second operand has 40 states, 40 states have (on average 4.125) internal successors, (165), 40 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:14:35,314 WARN L227 SmtUtils]: Spent 6.36s on a formula simplification. DAG size of input: 346 DAG size of output: 109 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 17:14:46,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:14:46,577 INFO L93 Difference]: Finished difference Result 363 states and 504 transitions. [2021-11-23 17:14:46,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-23 17:14:46,578 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 4.125) internal successors, (165), 40 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-23 17:14:46,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:14:46,579 INFO L225 Difference]: With dead ends: 363 [2021-11-23 17:14:46,580 INFO L226 Difference]: Without dead ends: 361 [2021-11-23 17:14:46,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 215 SyntacticMatches, 11 SemanticMatches, 65 ConstructedPredicates, 7 IntricatePredicates, 2 DeprecatedPredicates, 928 ImplicationChecksByTransitivity, 33.8s TimeCoverageRelationStatistics Valid=430, Invalid=3131, Unknown=7, NotChecked=854, Total=4422 [2021-11-23 17:14:46,581 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 76 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 671 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-23 17:14:46,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 574 Invalid, 1006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 312 Invalid, 0 Unknown, 671 Unchecked, 1.7s Time] [2021-11-23 17:14:46,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2021-11-23 17:14:46,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 208. [2021-11-23 17:14:46,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 207 states have (on average 1.4444444444444444) internal successors, (299), 207 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:14:46,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 299 transitions. [2021-11-23 17:14:46,632 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 299 transitions. Word has length 43 [2021-11-23 17:14:46,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:14:46,632 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 299 transitions. [2021-11-23 17:14:46,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 4.125) internal successors, (165), 40 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:14:46,632 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 299 transitions. [2021-11-23 17:14:46,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 17:14:46,633 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:14:46,633 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:14:46,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2021-11-23 17:14:46,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (42)] Forceful destruction successful, exit code 0 [2021-11-23 17:14:47,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2021-11-23 17:14:47,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:14:47,250 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:14:47,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:14:47,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1954560820, now seen corresponding path program 1 times [2021-11-23 17:14:47,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:14:47,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [43571227] [2021-11-23 17:14:47,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:14:47,251 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:14:47,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:14:47,251 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:14:47,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-11-23 17:14:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:14:47,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-23 17:14:47,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:14:47,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:14:47,669 INFO L354 Elim1Store]: treesize reduction 74, result has 20.4 percent of original size [2021-11-23 17:14:47,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 26 [2021-11-23 17:14:47,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:14:47,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:14:47,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 48 [2021-11-23 17:14:47,842 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:14:47,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 25 treesize of output 36 [2021-11-23 17:14:47,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:14:48,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:14:48,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:14:48,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 104 [2021-11-23 17:14:48,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:14:48,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:14:48,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 94 [2021-11-23 17:14:48,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:14:48,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 112 [2021-11-23 17:14:48,271 INFO L354 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2021-11-23 17:14:48,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 45 [2021-11-23 17:14:50,174 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 17:14:50,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 212 treesize of output 103 [2021-11-23 17:14:50,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 48 [2021-11-23 17:14:50,478 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 37 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 17:14:50,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:14:53,046 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:14:53,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:14:53,054 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:14:53,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:14:53,195 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_139 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_164| (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.offset_164| (_ BitVec 32)) (v_arrayElimArr_140 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2258 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_164| v_ArrVal_2258) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_164| v_arrayElimArr_139) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_164| v_arrayElimArr_140) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_164|)))) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv0 32))) (not (= (select .cse0 (bvadd .cse1 (_ bv8 32))) (_ bv2 32))) (not (= (select v_arrayElimArr_140 |v_ULTIMATE.start_main_~l~0#1.offset_164|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select v_arrayElimArr_139 |v_ULTIMATE.start_main_~l~0#1.offset_164|) |c_ULTIMATE.start_main_~l~0#1.base|))))) is different from false [2021-11-23 17:14:54,008 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:14:54,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 121 [2021-11-23 17:14:54,012 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:14:54,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 91 [2021-11-23 17:14:54,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 108 treesize of output 88 [2021-11-23 17:14:54,035 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:14:54,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 61 [2021-11-23 17:14:54,041 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:14:54,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-11-23 17:14:54,153 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2252 (_ BitVec 1)) (|v_ULTIMATE.start_main_~l~0#1.base_164| (_ BitVec 32)) (v_ArrVal_2254 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2258 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_573 (_ BitVec 32))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_573 v_ArrVal_2254) |v_ULTIMATE.start_main_~l~0#1.base_164| v_ArrVal_2258) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg v_ArrVal_2252))) (_ bv1 1)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_arrayElimCell_573)))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (bvneg (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_573 v_ArrVal_2252) |v_ULTIMATE.start_main_~l~0#1.base_164|)))) (_ bv0 1))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32)))))) is different from false [2021-11-23 17:14:54,274 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2252 (_ BitVec 1)) (|v_ULTIMATE.start_main_~l~0#1.base_164| (_ BitVec 32)) (v_ArrVal_2254 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2258 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_573 (_ BitVec 32))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_573 v_ArrVal_2254) |v_ULTIMATE.start_main_~l~0#1.base_164| v_ArrVal_2258) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg v_ArrVal_2252))) (_ bv1 1)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_arrayElimCell_573)))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_573 v_ArrVal_2252) |v_ULTIMATE.start_main_~l~0#1.base_164|))))))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32)))))) is different from false [2021-11-23 17:14:54,558 INFO L354 Elim1Store]: treesize reduction 106, result has 0.9 percent of original size [2021-11-23 17:14:54,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 1 [2021-11-23 17:14:54,564 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 13 proven. 22 refuted. 0 times theorem prover too weak. 3 trivial. 12 not checked. [2021-11-23 17:14:54,564 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:14:54,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [43571227] [2021-11-23 17:14:54,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [43571227] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:14:54,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [992571832] [2021-11-23 17:14:54,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:14:54,565 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:14:54,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:14:54,566 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:14:54,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2021-11-23 17:14:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:14:55,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-23 17:14:55,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:14:55,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:14:55,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:14:55,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:14:55,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:14:55,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:14:55,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2021-11-23 17:14:55,206 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:14:55,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 26 treesize of output 37 [2021-11-23 17:14:55,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:14:55,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:14:55,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 52 [2021-11-23 17:14:55,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:14:55,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2021-11-23 17:14:55,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:14:55,568 INFO L354 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2021-11-23 17:14:55,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 33 [2021-11-23 17:14:55,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:14:55,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2021-11-23 17:14:55,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-11-23 17:14:57,422 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-23 17:14:57,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 57 [2021-11-23 17:14:57,438 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-23 17:14:57,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2021-11-23 17:14:57,668 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 13 proven. 34 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 17:14:57,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:14:57,917 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:14:57,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:14:57,925 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:14:57,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:14:58,040 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_146 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_145 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2331 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_169| (_ BitVec 32))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_169| v_ArrVal_2331) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_169| v_arrayElimArr_145) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_169| v_arrayElimArr_146) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv0 32) (select .cse0 (bvadd (_ bv4 32) .cse1)))) (not (= (select v_arrayElimArr_145 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_146 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse0 (bvadd .cse1 (_ bv8 32))) (_ bv2 32))) (not (= (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_169|)))) (_ bv0 1)))))) is different from false [2021-11-23 17:14:58,166 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_146 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_145 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2331 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_169| (_ BitVec 32))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_169| v_ArrVal_2331) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_169| v_arrayElimArr_145) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_169| v_arrayElimArr_146) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv0 32) (select .cse0 (bvadd (_ bv4 32) .cse1)))) (not (= (select v_arrayElimArr_145 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_146 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse0 (bvadd .cse1 (_ bv8 32))) (_ bv2 32))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_169|)))))))))) is different from false [2021-11-23 17:14:58,801 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:14:58,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 107 [2021-11-23 17:14:58,805 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:14:58,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 83 [2021-11-23 17:14:58,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 105 treesize of output 85 [2021-11-23 17:14:58,820 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:14:58,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 55 [2021-11-23 17:14:58,823 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:14:58,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2021-11-23 17:14:58,938 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2331 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2326 (_ BitVec 1)) (v_arrayElimCell_591 (_ BitVec 32)) (v_ArrVal_2323 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_169| (_ BitVec 32))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_591 v_ArrVal_2323) |v_ULTIMATE.start_main_~l~0#1.base_169| v_ArrVal_2331) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_591 v_ArrVal_2326) |v_ULTIMATE.start_main_~l~0#1.base_169|)))))))))) (not (= (_ bv0 1) (select |c_#valid| v_arrayElimCell_591))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_2326) (_ bv1 1)))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32)))))) is different from false [2021-11-23 17:14:59,336 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 13 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 13 not checked. [2021-11-23 17:14:59,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [992571832] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:14:59,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872229917] [2021-11-23 17:14:59,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:14:59,337 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:14:59,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:14:59,338 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:14:59,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-11-23 17:14:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:14:59,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-23 17:14:59,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:14:59,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:14:59,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:14:59,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:14:59,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:14:59,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:14:59,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2021-11-23 17:14:59,743 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:14:59,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 28 treesize of output 39 [2021-11-23 17:15:00,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:15:00,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:15:00,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 63 [2021-11-23 17:15:00,115 INFO L354 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2021-11-23 17:15:00,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 36 [2021-11-23 17:15:00,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-23 17:15:00,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-23 17:15:00,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2021-11-23 17:15:01,641 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 17:15:01,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 58 [2021-11-23 17:15:01,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 10 [2021-11-23 17:15:01,721 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 13 proven. 34 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 17:15:01,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:15:01,958 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:15:01,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:15:01,967 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:15:01,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:15:02,115 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_174| (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.offset_174| (_ BitVec 32)) (v_arrayElimArr_151 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2406 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_150 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_174| v_ArrVal_2406) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_174| v_arrayElimArr_150) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_174| v_arrayElimArr_151) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_174|))) (not (= (select .cse0 (bvadd .cse1 (_ bv8 32))) (_ bv2 32))) (not (= (select v_arrayElimArr_151 |v_ULTIMATE.start_main_~l~0#1.offset_174|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse0 (bvadd .cse1 (_ bv4 32))) (_ bv0 32))) (not (= (select v_arrayElimArr_150 |v_ULTIMATE.start_main_~l~0#1.offset_174|) |c_ULTIMATE.start_main_~l~0#1.base|))))) is different from false [2021-11-23 17:15:02,890 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:15:02,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 121 [2021-11-23 17:15:02,893 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:15:02,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 91 [2021-11-23 17:15:02,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 107 treesize of output 87 [2021-11-23 17:15:02,908 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:15:02,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 61 [2021-11-23 17:15:02,912 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:15:02,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-11-23 17:15:03,041 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_174| (_ BitVec 32)) (v_ArrVal_2397 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_607 (_ BitVec 32)) (v_ArrVal_2401 (_ BitVec 1)) (v_ArrVal_2406 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_607 v_ArrVal_2397) |v_ULTIMATE.start_main_~l~0#1.base_174| v_ArrVal_2406) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (select (store |c_#valid| v_arrayElimCell_607 v_ArrVal_2401) |v_ULTIMATE.start_main_~l~0#1.base_174|)))) (not (= (_ bv0 1) (select |c_#valid| v_arrayElimCell_607))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_2401) (_ bv1 1)))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32)))))) is different from false [2021-11-23 17:15:03,418 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 13 proven. 22 refuted. 0 times theorem prover too weak. 3 trivial. 12 not checked. [2021-11-23 17:15:03,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872229917] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:15:03,418 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 17:15:03,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 11, 12, 11, 11] total 36 [2021-11-23 17:15:03,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223908575] [2021-11-23 17:15:03,419 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 17:15:03,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-11-23 17:15:03,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:15:03,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-11-23 17:15:03,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=689, Unknown=9, NotChecked=472, Total=1260 [2021-11-23 17:15:03,420 INFO L87 Difference]: Start difference. First operand 208 states and 299 transitions. Second operand has 36 states, 36 states have (on average 4.361111111111111) internal successors, (157), 36 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:15:30,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:15:30,215 INFO L93 Difference]: Finished difference Result 352 states and 492 transitions. [2021-11-23 17:15:30,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-23 17:15:30,216 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 4.361111111111111) internal successors, (157), 36 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-23 17:15:30,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:15:30,218 INFO L225 Difference]: With dead ends: 352 [2021-11-23 17:15:30,219 INFO L226 Difference]: Without dead ends: 350 [2021-11-23 17:15:30,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 231 SyntacticMatches, 6 SemanticMatches, 58 ConstructedPredicates, 8 IntricatePredicates, 3 DeprecatedPredicates, 612 ImplicationChecksByTransitivity, 29.1s TimeCoverageRelationStatistics Valid=331, Invalid=2342, Unknown=11, NotChecked=856, Total=3540 [2021-11-23 17:15:30,220 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 60 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 613 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-23 17:15:30,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 640 Invalid, 931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 294 Invalid, 0 Unknown, 613 Unchecked, 1.5s Time] [2021-11-23 17:15:30,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2021-11-23 17:15:30,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 208. [2021-11-23 17:15:30,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 207 states have (on average 1.4444444444444444) internal successors, (299), 207 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:15:30,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 299 transitions. [2021-11-23 17:15:30,288 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 299 transitions. Word has length 44 [2021-11-23 17:15:30,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:15:30,288 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 299 transitions. [2021-11-23 17:15:30,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.361111111111111) internal successors, (157), 36 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:15:30,289 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 299 transitions. [2021-11-23 17:15:30,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 17:15:30,289 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:15:30,289 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:15:30,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2021-11-23 17:15:30,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2021-11-23 17:15:30,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (45)] Forceful destruction successful, exit code 0 [2021-11-23 17:15:30,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt [2021-11-23 17:15:30,890 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:15:30,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:15:30,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1128348828, now seen corresponding path program 2 times [2021-11-23 17:15:30,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:15:30,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [645934673] [2021-11-23 17:15:30,891 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 17:15:30,891 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:15:30,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:15:30,892 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:15:30,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-11-23 17:15:31,227 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 17:15:31,227 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:15:31,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 58 conjunts are in the unsatisfiable core [2021-11-23 17:15:31,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:15:31,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:15:31,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:15:31,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:15:31,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:15:31,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 52 [2021-11-23 17:15:31,439 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-23 17:15:31,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 20 [2021-11-23 17:15:31,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:15:31,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:15:31,655 INFO L354 Elim1Store]: treesize reduction 23, result has 47.7 percent of original size [2021-11-23 17:15:31,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 64 [2021-11-23 17:15:31,683 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-23 17:15:31,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 40 [2021-11-23 17:15:31,713 INFO L354 Elim1Store]: treesize reduction 22, result has 43.6 percent of original size [2021-11-23 17:15:31,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 31 [2021-11-23 17:15:31,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-11-23 17:15:31,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 14 [2021-11-23 17:15:31,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 12 [2021-11-23 17:15:38,564 INFO L354 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2021-11-23 17:15:38,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 249 treesize of output 131 [2021-11-23 17:15:38,584 INFO L354 Elim1Store]: treesize reduction 26, result has 10.3 percent of original size [2021-11-23 17:15:38,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 25 [2021-11-23 17:15:40,437 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-11-23 17:15:40,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 60 [2021-11-23 17:15:40,533 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 39 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 17:15:40,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:15:43,886 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:15:43,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:15:43,898 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:15:43,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:15:44,053 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_155 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_156 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2479 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_179| (_ BitVec 32))) (let ((.cse2 (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_179| v_ArrVal_2479))) (let ((.cse0 (select .cse2 (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_179| v_arrayElimArr_155) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_179| v_arrayElimArr_156) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv1 32) (select v_ArrVal_2479 (_ bv4 32)))) (not (= (select .cse0 (bvadd .cse1 (_ bv4 32))) (_ bv0 32))) (not (= (select (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|) (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (select v_arrayElimArr_155 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv2 32) (select .cse0 (bvadd .cse1 (_ bv8 32))))) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_156 (_ bv0 32)))))))) is different from false [2021-11-23 17:15:44,549 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:15:44,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 107 [2021-11-23 17:15:44,553 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:15:44,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 83 [2021-11-23 17:15:44,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 107 treesize of output 85 [2021-11-23 17:15:44,570 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:15:44,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 55 [2021-11-23 17:15:44,575 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:15:44,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2021-11-23 17:15:44,688 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2472 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2479 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_628 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_179| (_ BitVec 32))) (let ((.cse1 (store (store |c_#memory_int| v_arrayElimCell_628 v_ArrVal_2472) |v_ULTIMATE.start_main_~l~0#1.base_179| v_ArrVal_2479))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv1 32) (select v_ArrVal_2479 (_ bv4 32)))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_arrayElimCell_628))))) (not (= (select (select .cse1 v_arrayElimCell_628) (_ bv4 32)) (_ bv0 32))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))))))) is different from false [2021-11-23 17:15:45,044 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-23 17:15:45,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 1 [2021-11-23 17:15:45,051 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 13 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 14 not checked. [2021-11-23 17:15:45,051 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:15:45,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [645934673] [2021-11-23 17:15:45,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [645934673] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:15:45,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [723364031] [2021-11-23 17:15:45,051 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 17:15:45,052 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:15:45,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:15:45,052 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:15:45,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2021-11-23 17:15:45,463 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 17:15:45,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:15:45,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-23 17:15:45,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:15:45,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:15:45,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:15:45,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:15:45,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:15:45,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:15:45,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2021-11-23 17:15:45,738 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:15:45,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 28 treesize of output 39 [2021-11-23 17:15:46,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:15:46,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:15:46,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2021-11-23 17:15:46,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:15:46,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 54 [2021-11-23 17:15:46,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:15:46,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2021-11-23 17:15:46,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:15:46,045 INFO L354 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2021-11-23 17:15:46,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 33 [2021-11-23 17:15:46,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-11-23 17:15:48,080 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-23 17:15:48,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 57 [2021-11-23 17:15:48,103 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-23 17:15:48,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2021-11-23 17:15:48,364 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 13 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 17:15:48,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:15:50,918 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:15:50,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:15:50,926 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:15:50,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:15:51,052 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_184| (_ BitVec 32)) (v_ArrVal_2552 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_162 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_161 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_184| v_ArrVal_2552) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_184| v_arrayElimArr_161) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_184| v_arrayElimArr_162) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_162 (_ bv0 32)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_184|)))) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv0 32))) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_161 (_ bv0 32)))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) .cse1))))))) is different from false [2021-11-23 17:15:51,461 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:15:51,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 129 treesize of output 115 [2021-11-23 17:15:51,465 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:15:51,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 87 [2021-11-23 17:15:51,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 104 treesize of output 84 [2021-11-23 17:15:51,480 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:15:51,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 59 [2021-11-23 17:15:51,483 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:15:51,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2021-11-23 17:15:51,595 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_184| (_ BitVec 32)) (v_ArrVal_2552 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_646 (_ BitVec 32)) (v_ArrVal_2549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2548 (_ BitVec 1))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_646 v_ArrVal_2549) |v_ULTIMATE.start_main_~l~0#1.base_184| v_ArrVal_2552) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (select |c_#valid| v_arrayElimCell_646))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_646 v_ArrVal_2548) |v_ULTIMATE.start_main_~l~0#1.base_184|))))) (not (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg v_ArrVal_2548)))))))) is different from false [2021-11-23 17:15:51,966 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 13 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 14 not checked. [2021-11-23 17:15:51,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [723364031] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:15:51,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431987657] [2021-11-23 17:15:51,967 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 17:15:51,967 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:15:51,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:15:51,967 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:15:51,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2021-11-23 17:15:52,193 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 17:15:52,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:15:52,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-23 17:15:52,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:15:52,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:15:52,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:15:52,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:15:52,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:15:52,385 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:15:52,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 29 treesize of output 40 [2021-11-23 17:15:52,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2021-11-23 17:15:52,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:15:52,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:15:52,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 56 [2021-11-23 17:15:52,689 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-11-23 17:15:52,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 44 [2021-11-23 17:15:52,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:15:52,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-23 17:15:52,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2021-11-23 17:15:54,509 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 17:15:54,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 58 [2021-11-23 17:15:54,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 10 [2021-11-23 17:15:54,589 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 13 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 17:15:54,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:15:54,855 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:15:54,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:15:54,864 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:15:54,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:15:54,991 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_189| (_ BitVec 32)) (v_arrayElimArr_168 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_167 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.offset_189| (_ BitVec 32)) (v_ArrVal_2632 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_189| v_ArrVal_2632) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_189| v_arrayElimArr_167) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_189| v_arrayElimArr_168) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv2 32) (select .cse0 (bvadd .cse1 (_ bv8 32))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_189|))) (not (= (select v_arrayElimArr_168 |v_ULTIMATE.start_main_~l~0#1.offset_189|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv0 32))) (not (= (select v_arrayElimArr_167 |v_ULTIMATE.start_main_~l~0#1.offset_189|) |c_ULTIMATE.start_main_~l~0#1.base|))))) is different from false [2021-11-23 17:15:55,513 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:15:55,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 121 [2021-11-23 17:15:55,517 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:15:55,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 91 [2021-11-23 17:15:55,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 110 treesize of output 90 [2021-11-23 17:15:55,532 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:15:55,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 61 [2021-11-23 17:15:55,536 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:15:55,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-11-23 17:15:55,654 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_662 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_189| (_ BitVec 32)) (v_ArrVal_2623 (_ BitVec 1)) (v_ArrVal_2621 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2632 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_662 v_ArrVal_2621) |v_ULTIMATE.start_main_~l~0#1.base_189| v_ArrVal_2632) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg v_ArrVal_2623))))) (not (= (bvneg (bvneg (select |c_#valid| v_arrayElimCell_662))) (_ bv0 1))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_662 v_ArrVal_2623) |v_ULTIMATE.start_main_~l~0#1.base_189|))))))))) is different from false [2021-11-23 17:15:55,808 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_662 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_189| (_ BitVec 32)) (v_ArrVal_2623 (_ BitVec 1)) (v_ArrVal_2621 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2632 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_662 v_ArrVal_2621) |v_ULTIMATE.start_main_~l~0#1.base_189| v_ArrVal_2632) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_662)))))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg v_ArrVal_2623))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_662 v_ArrVal_2623) |v_ULTIMATE.start_main_~l~0#1.base_189|))))))))) is different from false [2021-11-23 17:15:56,070 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 13 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 14 not checked. [2021-11-23 17:15:56,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431987657] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:15:56,070 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 17:15:56,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 11, 11, 11, 12] total 45 [2021-11-23 17:15:56,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049701856] [2021-11-23 17:15:56,070 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 17:15:56,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-23 17:15:56,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:15:56,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-23 17:15:56,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1270, Unknown=8, NotChecked=546, Total=1980 [2021-11-23 17:15:56,071 INFO L87 Difference]: Start difference. First operand 208 states and 299 transitions. Second operand has 45 states, 45 states have (on average 4.022222222222222) internal successors, (181), 45 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:15:57,153 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse12 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32)))) (let ((.cse18 (select |c_#memory_int| .cse12)) (.cse19 (select |c_#memory_int| |c_ULTIMATE.start_main_~l~0#1.base|))) (let ((.cse10 (select .cse19 (_ bv4 32))) (.cse8 (select .cse18 (_ bv8 32))) (.cse13 (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~l~0#1.base|))) (.cse11 (select .cse19 (_ bv8 32))) (.cse9 (select .cse18 (_ bv4 32)))) (and (forall ((v_arrayElimCell_662 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_189| (_ BitVec 32)) (v_ArrVal_2623 (_ BitVec 1)) (v_ArrVal_2621 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2632 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_662 v_ArrVal_2621) |v_ULTIMATE.start_main_~l~0#1.base_189| v_ArrVal_2632) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_662)))))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg v_ArrVal_2623))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_662 v_ArrVal_2623) |v_ULTIMATE.start_main_~l~0#1.base_189|))))))))) (exists ((v_arrayElimCell_632 (_ BitVec 1))) (let ((.cse1 (bvneg v_arrayElimCell_632))) (and (= (_ bv0 1) (bvadd (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32))) .cse1)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg .cse1)))))))) (forall ((v_ArrVal_2472 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2479 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_628 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_179| (_ BitVec 32))) (let ((.cse3 (store (store |c_#memory_int| v_arrayElimCell_628 v_ArrVal_2472) |v_ULTIMATE.start_main_~l~0#1.base_179| v_ArrVal_2479))) (let ((.cse2 (select .cse3 |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv1 32) (select v_ArrVal_2479 (_ bv4 32)))) (not (= (select .cse2 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_arrayElimCell_628))))) (not (= (select (select .cse3 v_arrayElimCell_628) (_ bv4 32)) (_ bv0 32))) (not (= (_ bv2 32) (select .cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))))))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_189| (_ BitVec 32)) (v_arrayElimArr_168 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_167 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.offset_189| (_ BitVec 32)) (v_ArrVal_2632 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_189| v_ArrVal_2632) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_189| v_arrayElimArr_167) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse5 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_189| v_arrayElimArr_168) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv2 32) (select .cse4 (bvadd .cse5 (_ bv8 32))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_189|))) (not (= (select v_arrayElimArr_168 |v_ULTIMATE.start_main_~l~0#1.offset_189|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse4 (bvadd (_ bv4 32) .cse5)) (_ bv0 32))) (not (= (select v_arrayElimArr_167 |v_ULTIMATE.start_main_~l~0#1.offset_189|) |c_ULTIMATE.start_main_~l~0#1.base|))))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_184| (_ BitVec 32)) (v_ArrVal_2552 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_162 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_161 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_184| v_ArrVal_2552) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_184| v_arrayElimArr_161) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse7 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_184| v_arrayElimArr_162) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_162 (_ bv0 32)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_184|)))) (not (= (select .cse6 (bvadd (_ bv4 32) .cse7)) (_ bv0 32))) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_161 (_ bv0 32)))) (not (= (_ bv2 32) (select .cse6 (bvadd (_ bv8 32) .cse7))))))) (not (bvsgt |c_ULTIMATE.start_main_~ev2~0#1| (_ bv3 32))) (not (bvsgt .cse8 (_ bv3 32))) (not (bvslt .cse9 (_ bv0 32))) (not (bvsgt .cse10 (_ bv3 32))) (or (not (= .cse10 (_ bv0 32))) (not (= (_ bv2 32) .cse11))) (= |c_ULTIMATE.start_main_~l~0#1.offset| (_ bv0 32)) (not (bvslt .cse8 (_ bv0 32))) (not (bvslt |c_ULTIMATE.start_main_~ev2~0#1| (_ bv0 32))) (not (= .cse12 |c_ULTIMATE.start_main_~l~0#1.base|)) (not (bvslt .cse10 (_ bv0 32))) (or (not (= .cse9 (_ bv0 32))) (not (= (_ bv2 32) .cse8))) (not (bvslt |c_ULTIMATE.start_main_~ev1~0#1| (_ bv0 32))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg .cse13))) (forall ((v_arrayElimArr_155 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_156 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2479 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_179| (_ BitVec 32))) (let ((.cse16 (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_179| v_ArrVal_2479))) (let ((.cse14 (select .cse16 (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_179| v_arrayElimArr_155) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse15 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_179| v_arrayElimArr_156) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv1 32) (select v_ArrVal_2479 (_ bv4 32)))) (not (= (select .cse14 (bvadd .cse15 (_ bv4 32))) (_ bv0 32))) (not (= (select (select .cse16 |c_ULTIMATE.start_main_~l~0#1.base|) (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (select v_arrayElimArr_155 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv2 32) (select .cse14 (bvadd .cse15 (_ bv8 32))))) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_156 (_ bv0 32)))))))) (= (_ bv0 1) (bvadd .cse13 (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_184| (_ BitVec 32)) (v_ArrVal_2552 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_646 (_ BitVec 32)) (v_ArrVal_2549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2548 (_ BitVec 1))) (let ((.cse17 (select (store (store |c_#memory_int| v_arrayElimCell_646 v_ArrVal_2549) |v_ULTIMATE.start_main_~l~0#1.base_184| v_ArrVal_2552) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse17 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv2 32) (select .cse17 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (select |c_#valid| v_arrayElimCell_646))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_646 v_ArrVal_2548) |v_ULTIMATE.start_main_~l~0#1.base_184|))))) (not (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg v_ArrVal_2548)))))))) (not (bvsgt |c_ULTIMATE.start_main_~ev1~0#1| (_ bv3 32))) (not (bvslt .cse11 (_ bv0 32))) (not (bvsgt .cse11 (_ bv3 32))) (not (bvsgt .cse9 (_ bv3 32))) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32)) (_ bv0 32)))))) is different from false [2021-11-23 17:15:57,416 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse12 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32)))) (let ((.cse18 (select |c_#memory_int| .cse12)) (.cse19 (select |c_#memory_int| |c_ULTIMATE.start_main_~l~0#1.base|))) (let ((.cse10 (select .cse19 (_ bv4 32))) (.cse8 (select .cse18 (_ bv8 32))) (.cse13 (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~l~0#1.base|))) (.cse11 (select .cse19 (_ bv8 32))) (.cse9 (select .cse18 (_ bv4 32)))) (and (forall ((v_arrayElimCell_662 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_189| (_ BitVec 32)) (v_ArrVal_2623 (_ BitVec 1)) (v_ArrVal_2621 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2632 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_662 v_ArrVal_2621) |v_ULTIMATE.start_main_~l~0#1.base_189| v_ArrVal_2632) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_662)))))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg v_ArrVal_2623))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_662 v_ArrVal_2623) |v_ULTIMATE.start_main_~l~0#1.base_189|))))))))) (exists ((v_arrayElimCell_632 (_ BitVec 1))) (let ((.cse1 (bvneg v_arrayElimCell_632))) (and (= (_ bv0 1) (bvadd (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32))) .cse1)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg .cse1)))))))) (forall ((v_ArrVal_2472 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2479 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_628 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_179| (_ BitVec 32))) (let ((.cse3 (store (store |c_#memory_int| v_arrayElimCell_628 v_ArrVal_2472) |v_ULTIMATE.start_main_~l~0#1.base_179| v_ArrVal_2479))) (let ((.cse2 (select .cse3 |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv1 32) (select v_ArrVal_2479 (_ bv4 32)))) (not (= (select .cse2 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_arrayElimCell_628))))) (not (= (select (select .cse3 v_arrayElimCell_628) (_ bv4 32)) (_ bv0 32))) (not (= (_ bv2 32) (select .cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))))))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_189| (_ BitVec 32)) (v_arrayElimArr_168 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_167 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.offset_189| (_ BitVec 32)) (v_ArrVal_2632 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_189| v_ArrVal_2632) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_189| v_arrayElimArr_167) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse5 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_189| v_arrayElimArr_168) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv2 32) (select .cse4 (bvadd .cse5 (_ bv8 32))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_189|))) (not (= (select v_arrayElimArr_168 |v_ULTIMATE.start_main_~l~0#1.offset_189|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse4 (bvadd (_ bv4 32) .cse5)) (_ bv0 32))) (not (= (select v_arrayElimArr_167 |v_ULTIMATE.start_main_~l~0#1.offset_189|) |c_ULTIMATE.start_main_~l~0#1.base|))))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_184| (_ BitVec 32)) (v_ArrVal_2552 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_162 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_161 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_184| v_ArrVal_2552) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_184| v_arrayElimArr_161) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse7 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_184| v_arrayElimArr_162) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_162 (_ bv0 32)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_184|)))) (not (= (select .cse6 (bvadd (_ bv4 32) .cse7)) (_ bv0 32))) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_161 (_ bv0 32)))) (not (= (_ bv2 32) (select .cse6 (bvadd (_ bv8 32) .cse7))))))) (not (bvsgt .cse8 (_ bv3 32))) (not (bvslt .cse9 (_ bv0 32))) (not (bvsgt .cse10 (_ bv3 32))) (or (not (= .cse10 (_ bv0 32))) (not (= (_ bv2 32) .cse11))) (= |c_ULTIMATE.start_main_~l~0#1.offset| (_ bv0 32)) (not (bvslt .cse8 (_ bv0 32))) (not (= .cse12 |c_ULTIMATE.start_main_~l~0#1.base|)) (not (bvslt .cse10 (_ bv0 32))) (or (not (= .cse9 (_ bv0 32))) (not (= (_ bv2 32) .cse8))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg .cse13))) (forall ((v_arrayElimArr_155 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_156 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2479 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_179| (_ BitVec 32))) (let ((.cse16 (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_179| v_ArrVal_2479))) (let ((.cse14 (select .cse16 (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_179| v_arrayElimArr_155) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse15 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_179| v_arrayElimArr_156) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv1 32) (select v_ArrVal_2479 (_ bv4 32)))) (not (= (select .cse14 (bvadd .cse15 (_ bv4 32))) (_ bv0 32))) (not (= (select (select .cse16 |c_ULTIMATE.start_main_~l~0#1.base|) (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (select v_arrayElimArr_155 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv2 32) (select .cse14 (bvadd .cse15 (_ bv8 32))))) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_156 (_ bv0 32)))))))) (= (_ bv0 1) (bvadd .cse13 (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_184| (_ BitVec 32)) (v_ArrVal_2552 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_646 (_ BitVec 32)) (v_ArrVal_2549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2548 (_ BitVec 1))) (let ((.cse17 (select (store (store |c_#memory_int| v_arrayElimCell_646 v_ArrVal_2549) |v_ULTIMATE.start_main_~l~0#1.base_184| v_ArrVal_2552) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse17 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv2 32) (select .cse17 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (select |c_#valid| v_arrayElimCell_646))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_646 v_ArrVal_2548) |v_ULTIMATE.start_main_~l~0#1.base_184|))))) (not (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg v_ArrVal_2548)))))))) (not (bvslt .cse11 (_ bv0 32))) (not (bvsgt .cse11 (_ bv3 32))) (not (bvsgt .cse9 (_ bv3 32))) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32)) (_ bv0 32)))))) is different from false [2021-11-23 17:15:57,993 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse29 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32)))) (let ((.cse37 (select (select |c_#memory_$Pointer$.base| .cse29) (_ bv0 32)))) (let ((.cse38 (select |c_#memory_int| .cse37))) (let ((.cse35 (select |c_#memory_int| .cse29)) (.cse36 (select |c_#memory_int| |c_ULTIMATE.start_main_~l~0#1.base|)) (.cse28 (select .cse38 (_ bv8 32))) (.cse27 (select .cse38 (_ bv4 32)))) (let ((.cse8 (= .cse37 |c_ULTIMATE.start_main_~l~0#1.base|)) (.cse11 (not (= .cse27 (_ bv0 32)))) (.cse13 (not (= .cse29 .cse37))) (.cse10 (not (= .cse28 (_ bv2 32)))) (.cse16 (= .cse29 |c_ULTIMATE.start_main_~l~0#1.base|)) (.cse14 (select .cse36 (_ bv4 32))) (.cse9 (select .cse35 (_ bv8 32))) (.cse30 (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~l~0#1.base|))) (.cse15 (select .cse36 (_ bv8 32))) (.cse12 (select .cse35 (_ bv4 32)))) (and (forall ((v_arrayElimCell_662 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_189| (_ BitVec 32)) (v_ArrVal_2623 (_ BitVec 1)) (v_ArrVal_2621 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2632 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_662 v_ArrVal_2621) |v_ULTIMATE.start_main_~l~0#1.base_189| v_ArrVal_2632) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_662)))))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg v_ArrVal_2623))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_662 v_ArrVal_2623) |v_ULTIMATE.start_main_~l~0#1.base_189|))))))))) (exists ((v_arrayElimCell_632 (_ BitVec 1))) (let ((.cse1 (bvneg v_arrayElimCell_632))) (and (= (_ bv0 1) (bvadd (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32))) .cse1)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg .cse1)))))))) (forall ((v_ArrVal_2472 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2479 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_628 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_179| (_ BitVec 32))) (let ((.cse3 (store (store |c_#memory_int| v_arrayElimCell_628 v_ArrVal_2472) |v_ULTIMATE.start_main_~l~0#1.base_179| v_ArrVal_2479))) (let ((.cse2 (select .cse3 |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv1 32) (select v_ArrVal_2479 (_ bv4 32)))) (not (= (select .cse2 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_arrayElimCell_628))))) (not (= (select (select .cse3 v_arrayElimCell_628) (_ bv4 32)) (_ bv0 32))) (not (= (_ bv2 32) (select .cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))))))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_189| (_ BitVec 32)) (v_arrayElimArr_168 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_167 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.offset_189| (_ BitVec 32)) (v_ArrVal_2632 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_189| v_ArrVal_2632) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_189| v_arrayElimArr_167) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse5 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_189| v_arrayElimArr_168) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv2 32) (select .cse4 (bvadd .cse5 (_ bv8 32))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_189|))) (not (= (select v_arrayElimArr_168 |v_ULTIMATE.start_main_~l~0#1.offset_189|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse4 (bvadd (_ bv4 32) .cse5)) (_ bv0 32))) (not (= (select v_arrayElimArr_167 |v_ULTIMATE.start_main_~l~0#1.offset_189|) |c_ULTIMATE.start_main_~l~0#1.base|))))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_184| (_ BitVec 32)) (v_ArrVal_2552 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_162 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_161 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_184| v_ArrVal_2552) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_184| v_arrayElimArr_161) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse7 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_184| v_arrayElimArr_162) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_162 (_ bv0 32)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_184|)))) (not (= (select .cse6 (bvadd (_ bv4 32) .cse7)) (_ bv0 32))) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_161 (_ bv0 32)))) (not (= (_ bv2 32) (select .cse6 (bvadd (_ bv8 32) .cse7))))))) (not .cse8) (not (bvsgt .cse9 (_ bv3 32))) (or .cse10 .cse11) (not (bvslt .cse12 (_ bv0 32))) .cse13 (not (bvsgt .cse14 (_ bv3 32))) (or (not (= .cse14 (_ bv0 32))) (not (= (_ bv2 32) .cse15))) (= |c_ULTIMATE.start_main_~l~0#1.offset| (_ bv0 32)) (not (bvslt .cse9 (_ bv0 32))) (let ((.cse20 (not (bvslt .cse28 (_ bv0 32)))) (.cse21 (not (bvsgt .cse28 (_ bv3 32)))) (.cse22 (not (bvslt .cse27 (_ bv0 32)))) (.cse23 (not (bvsgt .cse27 (_ bv3 32))))) (or (and .cse16 (exists ((v_arrayElimCell_615 (_ BitVec 32))) (let ((.cse19 (select |c_#memory_int| v_arrayElimCell_615))) (let ((.cse17 (select .cse19 (_ bv8 32))) (.cse18 (select .cse19 (_ bv4 32)))) (and (not (bvsgt .cse17 (_ bv3 32))) (not (bvsgt .cse18 (_ bv3 32))) (not (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32)) v_arrayElimCell_615)) (not (bvslt .cse17 (_ bv0 32))) (not (= .cse18 (_ bv0 32))) (not (bvslt .cse18 (_ bv0 32)))))))) (and .cse13 .cse8) (and .cse20 .cse13 .cse21 .cse11 .cse22 .cse23) (and .cse16 (exists ((v_arrayElimCell_615 (_ BitVec 32))) (let ((.cse26 (select |c_#memory_int| v_arrayElimCell_615))) (let ((.cse24 (select .cse26 (_ bv8 32))) (.cse25 (select .cse26 (_ bv4 32)))) (and (not (bvsgt .cse24 (_ bv3 32))) (not (bvsgt .cse25 (_ bv3 32))) (not (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32)) v_arrayElimCell_615)) (not (bvslt .cse24 (_ bv0 32))) (not (= .cse24 (_ bv2 32))) (not (bvslt .cse25 (_ bv0 32)))))))) (and .cse20 .cse13 .cse21 .cse10 .cse22 .cse23))) (= (select (select |c_#memory_$Pointer$.offset| .cse29) (_ bv0 32)) (_ bv0 32)) (not .cse16) (not (bvslt .cse14 (_ bv0 32))) (or (not (= .cse12 (_ bv0 32))) (not (= (_ bv2 32) .cse9))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg .cse30))) (forall ((v_arrayElimArr_155 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_156 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2479 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_179| (_ BitVec 32))) (let ((.cse33 (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_179| v_ArrVal_2479))) (let ((.cse31 (select .cse33 (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_179| v_arrayElimArr_155) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse32 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_179| v_arrayElimArr_156) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv1 32) (select v_ArrVal_2479 (_ bv4 32)))) (not (= (select .cse31 (bvadd .cse32 (_ bv4 32))) (_ bv0 32))) (not (= (select (select .cse33 |c_ULTIMATE.start_main_~l~0#1.base|) (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (select v_arrayElimArr_155 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv2 32) (select .cse31 (bvadd .cse32 (_ bv8 32))))) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_156 (_ bv0 32)))))))) (= (_ bv0 1) (bvadd .cse30 (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_184| (_ BitVec 32)) (v_ArrVal_2552 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_646 (_ BitVec 32)) (v_ArrVal_2549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2548 (_ BitVec 1))) (let ((.cse34 (select (store (store |c_#memory_int| v_arrayElimCell_646 v_ArrVal_2549) |v_ULTIMATE.start_main_~l~0#1.base_184| v_ArrVal_2552) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse34 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv2 32) (select .cse34 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (select |c_#valid| v_arrayElimCell_646))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_646 v_ArrVal_2548) |v_ULTIMATE.start_main_~l~0#1.base_184|))))) (not (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg v_ArrVal_2548)))))))) (not (bvslt .cse15 (_ bv0 32))) (not (bvsgt .cse15 (_ bv3 32))) (not (bvsgt .cse12 (_ bv3 32))) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32)) (_ bv0 32)))))))) is different from false [2021-11-23 17:15:58,961 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse29 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32)))) (let ((.cse37 (select (select |c_#memory_$Pointer$.base| .cse29) (_ bv0 32)))) (let ((.cse38 (select |c_#memory_int| .cse37))) (let ((.cse35 (select |c_#memory_int| .cse29)) (.cse36 (select |c_#memory_int| |c_ULTIMATE.start_main_~l~0#1.base|)) (.cse28 (select .cse38 (_ bv8 32))) (.cse27 (select .cse38 (_ bv4 32)))) (let ((.cse8 (= .cse37 |c_ULTIMATE.start_main_~l~0#1.base|)) (.cse11 (not (= .cse27 (_ bv0 32)))) (.cse13 (not (= .cse29 .cse37))) (.cse10 (not (= .cse28 (_ bv2 32)))) (.cse16 (= .cse29 |c_ULTIMATE.start_main_~l~0#1.base|)) (.cse14 (select .cse36 (_ bv4 32))) (.cse9 (select .cse35 (_ bv8 32))) (.cse30 (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~l~0#1.base|))) (.cse15 (select .cse36 (_ bv8 32))) (.cse12 (select .cse35 (_ bv4 32)))) (and (forall ((v_arrayElimCell_662 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_189| (_ BitVec 32)) (v_ArrVal_2623 (_ BitVec 1)) (v_ArrVal_2621 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2632 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_662 v_ArrVal_2621) |v_ULTIMATE.start_main_~l~0#1.base_189| v_ArrVal_2632) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_662)))))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg v_ArrVal_2623))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_662 v_ArrVal_2623) |v_ULTIMATE.start_main_~l~0#1.base_189|))))))))) (exists ((v_arrayElimCell_632 (_ BitVec 1))) (let ((.cse1 (bvneg v_arrayElimCell_632))) (and (= (_ bv0 1) (bvadd (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32))) .cse1)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg .cse1)))))))) (forall ((v_ArrVal_2472 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2479 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_628 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_179| (_ BitVec 32))) (let ((.cse3 (store (store |c_#memory_int| v_arrayElimCell_628 v_ArrVal_2472) |v_ULTIMATE.start_main_~l~0#1.base_179| v_ArrVal_2479))) (let ((.cse2 (select .cse3 |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv1 32) (select v_ArrVal_2479 (_ bv4 32)))) (not (= (select .cse2 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_arrayElimCell_628))))) (not (= (select (select .cse3 v_arrayElimCell_628) (_ bv4 32)) (_ bv0 32))) (not (= (_ bv2 32) (select .cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))))))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_189| (_ BitVec 32)) (v_arrayElimArr_168 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_167 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.offset_189| (_ BitVec 32)) (v_ArrVal_2632 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_189| v_ArrVal_2632) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_189| v_arrayElimArr_167) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse5 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_189| v_arrayElimArr_168) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv2 32) (select .cse4 (bvadd .cse5 (_ bv8 32))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_189|))) (not (= (select v_arrayElimArr_168 |v_ULTIMATE.start_main_~l~0#1.offset_189|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse4 (bvadd (_ bv4 32) .cse5)) (_ bv0 32))) (not (= (select v_arrayElimArr_167 |v_ULTIMATE.start_main_~l~0#1.offset_189|) |c_ULTIMATE.start_main_~l~0#1.base|))))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_184| (_ BitVec 32)) (v_ArrVal_2552 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_162 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_161 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_184| v_ArrVal_2552) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_184| v_arrayElimArr_161) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse7 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_184| v_arrayElimArr_162) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_162 (_ bv0 32)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_184|)))) (not (= (select .cse6 (bvadd (_ bv4 32) .cse7)) (_ bv0 32))) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_161 (_ bv0 32)))) (not (= (_ bv2 32) (select .cse6 (bvadd (_ bv8 32) .cse7))))))) (not .cse8) (not (bvsgt |c_ULTIMATE.start_main_~ev2~0#1| (_ bv3 32))) (not (bvsgt .cse9 (_ bv3 32))) (or .cse10 .cse11) (not (bvslt .cse12 (_ bv0 32))) .cse13 (not (bvsgt .cse14 (_ bv3 32))) (or (not (= .cse14 (_ bv0 32))) (not (= (_ bv2 32) .cse15))) (= |c_ULTIMATE.start_main_~l~0#1.offset| (_ bv0 32)) (not (bvslt .cse9 (_ bv0 32))) (not (bvslt |c_ULTIMATE.start_main_~ev2~0#1| (_ bv0 32))) (let ((.cse20 (not (bvslt .cse28 (_ bv0 32)))) (.cse21 (not (bvsgt .cse28 (_ bv3 32)))) (.cse22 (not (bvslt .cse27 (_ bv0 32)))) (.cse23 (not (bvsgt .cse27 (_ bv3 32))))) (or (and .cse16 (exists ((v_arrayElimCell_615 (_ BitVec 32))) (let ((.cse19 (select |c_#memory_int| v_arrayElimCell_615))) (let ((.cse17 (select .cse19 (_ bv8 32))) (.cse18 (select .cse19 (_ bv4 32)))) (and (not (bvsgt .cse17 (_ bv3 32))) (not (bvsgt .cse18 (_ bv3 32))) (not (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32)) v_arrayElimCell_615)) (not (bvslt .cse17 (_ bv0 32))) (not (= .cse18 (_ bv0 32))) (not (bvslt .cse18 (_ bv0 32)))))))) (and .cse13 .cse8) (and .cse20 .cse13 .cse21 .cse11 .cse22 .cse23) (and .cse16 (exists ((v_arrayElimCell_615 (_ BitVec 32))) (let ((.cse26 (select |c_#memory_int| v_arrayElimCell_615))) (let ((.cse24 (select .cse26 (_ bv8 32))) (.cse25 (select .cse26 (_ bv4 32)))) (and (not (bvsgt .cse24 (_ bv3 32))) (not (bvsgt .cse25 (_ bv3 32))) (not (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32)) v_arrayElimCell_615)) (not (bvslt .cse24 (_ bv0 32))) (not (= .cse24 (_ bv2 32))) (not (bvslt .cse25 (_ bv0 32)))))))) (and .cse20 .cse13 .cse21 .cse10 .cse22 .cse23))) (= (select (select |c_#memory_$Pointer$.offset| .cse29) (_ bv0 32)) (_ bv0 32)) (not .cse16) (not (bvslt .cse14 (_ bv0 32))) (or (not (= .cse12 (_ bv0 32))) (not (= (_ bv2 32) .cse9))) (not (bvslt |c_ULTIMATE.start_main_~ev1~0#1| (_ bv0 32))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg .cse30))) (forall ((v_arrayElimArr_155 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_156 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2479 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_179| (_ BitVec 32))) (let ((.cse33 (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_179| v_ArrVal_2479))) (let ((.cse31 (select .cse33 (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_179| v_arrayElimArr_155) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse32 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_179| v_arrayElimArr_156) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv1 32) (select v_ArrVal_2479 (_ bv4 32)))) (not (= (select .cse31 (bvadd .cse32 (_ bv4 32))) (_ bv0 32))) (not (= (select (select .cse33 |c_ULTIMATE.start_main_~l~0#1.base|) (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (select v_arrayElimArr_155 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv2 32) (select .cse31 (bvadd .cse32 (_ bv8 32))))) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_156 (_ bv0 32)))))))) (= (_ bv0 1) (bvadd .cse30 (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_184| (_ BitVec 32)) (v_ArrVal_2552 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_646 (_ BitVec 32)) (v_ArrVal_2549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2548 (_ BitVec 1))) (let ((.cse34 (select (store (store |c_#memory_int| v_arrayElimCell_646 v_ArrVal_2549) |v_ULTIMATE.start_main_~l~0#1.base_184| v_ArrVal_2552) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse34 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv2 32) (select .cse34 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (select |c_#valid| v_arrayElimCell_646))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_646 v_ArrVal_2548) |v_ULTIMATE.start_main_~l~0#1.base_184|))))) (not (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg v_ArrVal_2548)))))))) (not (bvsgt |c_ULTIMATE.start_main_~ev1~0#1| (_ bv3 32))) (not (bvslt .cse15 (_ bv0 32))) (not (bvsgt .cse15 (_ bv3 32))) (not (bvsgt .cse12 (_ bv3 32))) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32)) (_ bv0 32)))))))) is different from false [2021-11-23 17:16:07,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:16:07,734 INFO L93 Difference]: Finished difference Result 585 states and 820 transitions. [2021-11-23 17:16:07,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-11-23 17:16:07,735 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 4.022222222222222) internal successors, (181), 45 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-23 17:16:07,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:16:07,738 INFO L225 Difference]: With dead ends: 585 [2021-11-23 17:16:07,738 INFO L226 Difference]: Without dead ends: 583 [2021-11-23 17:16:07,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 230 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 11 IntricatePredicates, 0 DeprecatedPredicates, 1537 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=703, Invalid=5181, Unknown=12, NotChecked=1760, Total=7656 [2021-11-23 17:16:07,740 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 119 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1023 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-23 17:16:07,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 585 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 355 Invalid, 0 Unknown, 1023 Unchecked, 2.2s Time] [2021-11-23 17:16:07,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2021-11-23 17:16:07,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 353. [2021-11-23 17:16:07,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 352 states have (on average 1.5255681818181819) internal successors, (537), 352 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:16:07,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 537 transitions. [2021-11-23 17:16:07,870 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 537 transitions. Word has length 44 [2021-11-23 17:16:07,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:16:07,871 INFO L470 AbstractCegarLoop]: Abstraction has 353 states and 537 transitions. [2021-11-23 17:16:07,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 4.022222222222222) internal successors, (181), 45 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:16:07,871 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 537 transitions. [2021-11-23 17:16:07,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 17:16:07,872 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:16:07,873 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:16:07,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2021-11-23 17:16:08,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2021-11-23 17:16:08,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2021-11-23 17:16:08,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:16:08,490 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:16:08,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:16:08,490 INFO L85 PathProgramCache]: Analyzing trace with hash 778096309, now seen corresponding path program 1 times [2021-11-23 17:16:08,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:16:08,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [299141793] [2021-11-23 17:16:08,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:16:08,490 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:16:08,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:16:08,491 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:16:08,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2021-11-23 17:16:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:16:08,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-23 17:16:08,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:16:08,909 INFO L354 Elim1Store]: treesize reduction 74, result has 20.4 percent of original size [2021-11-23 17:16:08,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 26 [2021-11-23 17:16:08,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:16:09,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:16:09,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:16:09,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 60 [2021-11-23 17:16:09,080 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-23 17:16:09,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 25 treesize of output 32 [2021-11-23 17:16:09,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:16:09,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:16:09,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:16:09,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 106 [2021-11-23 17:16:09,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:16:09,367 INFO L354 Elim1Store]: treesize reduction 8, result has 74.2 percent of original size [2021-11-23 17:16:09,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 40 [2021-11-23 17:16:09,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 94 [2021-11-23 17:16:09,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 112 [2021-11-23 17:16:11,525 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 17:16:11,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 212 treesize of output 103 [2021-11-23 17:16:11,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 48 [2021-11-23 17:16:11,794 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 14 proven. 37 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 17:16:11,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:16:14,376 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:16:14,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:16:14,384 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:16:14,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:16:14,523 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.offset_194| (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_194| (_ BitVec 32)) (v_ArrVal_2700 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_173 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_174 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_194| v_ArrVal_2700) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_194| v_arrayElimArr_173) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_194| v_arrayElimArr_174) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv3 32) (select .cse0 (bvadd .cse1 (_ bv8 32))))) (not (= (select v_arrayElimArr_173 |v_ULTIMATE.start_main_~l~0#1.offset_194|) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_174 |v_ULTIMATE.start_main_~l~0#1.offset_194|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv1 32))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_194|)))))))) is different from false [2021-11-23 17:16:14,957 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:16:14,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 121 [2021-11-23 17:16:14,967 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:16:14,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 91 [2021-11-23 17:16:14,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 109 treesize of output 89 [2021-11-23 17:16:14,982 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:16:14,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 61 [2021-11-23 17:16:14,985 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:16:14,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-11-23 17:16:15,097 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_678 (_ BitVec 32)) (v_ArrVal_2695 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2694 (_ BitVec 1)) (|v_ULTIMATE.start_main_~l~0#1.base_194| (_ BitVec 32)) (v_ArrVal_2700 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_678 v_ArrVal_2695) |v_ULTIMATE.start_main_~l~0#1.base_194| v_ArrVal_2700) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_678 v_ArrVal_2694) |v_ULTIMATE.start_main_~l~0#1.base_194|)))))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_2694) (_ bv1 1)))) (not (= (_ bv0 1) (select |c_#valid| v_arrayElimCell_678))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32)))))) is different from false [2021-11-23 17:16:15,481 INFO L354 Elim1Store]: treesize reduction 106, result has 0.9 percent of original size [2021-11-23 17:16:15,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 1 [2021-11-23 17:16:15,486 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 17 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 18 not checked. [2021-11-23 17:16:15,486 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:16:15,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [299141793] [2021-11-23 17:16:15,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [299141793] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:16:15,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [493637475] [2021-11-23 17:16:15,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:16:15,487 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:16:15,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:16:15,488 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:16:15,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2021-11-23 17:16:16,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:16:16,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-23 17:16:16,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:16:16,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:16:16,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:16:16,270 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-23 17:16:16,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 22 treesize of output 29 [2021-11-23 17:16:16,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2021-11-23 17:16:16,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:16:16,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:16:16,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:16:16,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:16:16,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2021-11-23 17:16:16,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:16:16,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 54 [2021-11-23 17:16:16,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:16:16,559 INFO L354 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2021-11-23 17:16:16,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 32 [2021-11-23 17:16:16,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2021-11-23 17:16:16,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-11-23 17:16:18,661 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-23 17:16:18,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 57 [2021-11-23 17:16:18,676 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-23 17:16:18,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2021-11-23 17:16:18,876 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 15 proven. 36 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 17:16:18,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:16:19,139 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:16:19,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:16:19,147 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:16:19,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:16:19,264 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_199| (_ BitVec 32)) (v_arrayElimArr_179 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_180 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2779 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_199| v_ArrVal_2779) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_199| v_arrayElimArr_179) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_199| v_arrayElimArr_180) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select v_arrayElimArr_179 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv1 32))) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_180 (_ bv0 32)))) (not (= (select .cse0 (bvadd (_ bv8 32) .cse1)) (_ bv3 32))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_199|))))))) is different from false [2021-11-23 17:16:19,631 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:16:19,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 121 [2021-11-23 17:16:19,634 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:16:19,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 91 [2021-11-23 17:16:19,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 107 treesize of output 87 [2021-11-23 17:16:19,649 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:16:19,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 61 [2021-11-23 17:16:19,653 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:16:19,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-11-23 17:16:19,766 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_696 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_199| (_ BitVec 32)) (v_ArrVal_2771 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2769 (_ BitVec 1)) (v_ArrVal_2779 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_696 v_ArrVal_2771) |v_ULTIMATE.start_main_~l~0#1.base_199| v_ArrVal_2779) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (_ bv0 1) (bvadd (bvneg (bvneg v_ArrVal_2769)) (_ bv1 1)))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv0 1) (select |c_#valid| v_arrayElimCell_696))) (not (= (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_696 v_ArrVal_2769) |v_ULTIMATE.start_main_~l~0#1.base_199|))) (_ bv0 1)))))) is different from false [2021-11-23 17:16:19,885 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_696 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_199| (_ BitVec 32)) (v_ArrVal_2771 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2769 (_ BitVec 1)) (v_ArrVal_2779 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_696 v_ArrVal_2771) |v_ULTIMATE.start_main_~l~0#1.base_199| v_ArrVal_2779) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_696 v_ArrVal_2769) |v_ULTIMATE.start_main_~l~0#1.base_199|)))))) (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (_ bv0 1) (bvadd (bvneg (bvneg v_ArrVal_2769)) (_ bv1 1)))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv0 1) (select |c_#valid| v_arrayElimCell_696)))))) is different from false [2021-11-23 17:16:20,157 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 15 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 18 not checked. [2021-11-23 17:16:20,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [493637475] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:16:20,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930690816] [2021-11-23 17:16:20,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:16:20,158 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:16:20,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:16:20,158 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:16:20,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2021-11-23 17:16:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:16:20,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-23 17:16:20,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:16:20,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:16:20,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:16:20,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:16:20,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:16:20,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:16:20,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2021-11-23 17:16:20,555 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:16:20,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 26 treesize of output 37 [2021-11-23 17:16:20,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:16:20,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:16:20,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 52 [2021-11-23 17:16:20,854 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-11-23 17:16:20,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 37 [2021-11-23 17:16:20,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:16:20,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 34 [2021-11-23 17:16:20,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-23 17:16:22,552 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 17:16:22,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 58 [2021-11-23 17:16:22,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 10 [2021-11-23 17:16:22,606 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 17 proven. 34 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 17:16:22,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:16:22,895 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:16:22,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:16:22,903 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:16:22,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:16:23,028 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2850 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_186 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_185 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_204| (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.offset_204| (_ BitVec 32))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_204| v_ArrVal_2850) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_204| v_arrayElimArr_185) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_204| v_arrayElimArr_186) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select v_arrayElimArr_186 |v_ULTIMATE.start_main_~l~0#1.offset_204|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_204|)))) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_185 |v_ULTIMATE.start_main_~l~0#1.offset_204|))) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv1 32))) (not (= (_ bv3 32) (select .cse0 (bvadd (_ bv8 32) .cse1))))))) is different from false [2021-11-23 17:16:23,552 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:16:23,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 121 [2021-11-23 17:16:23,557 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:16:23,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 91 [2021-11-23 17:16:23,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 107 treesize of output 87 [2021-11-23 17:16:23,578 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:16:23,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 61 [2021-11-23 17:16:23,583 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:16:23,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-11-23 17:16:23,699 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2850 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_712 (_ BitVec 32)) (v_ArrVal_2840 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_204| (_ BitVec 32)) (v_ArrVal_2845 (_ BitVec 1))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_712 v_ArrVal_2840) |v_ULTIMATE.start_main_~l~0#1.base_204| v_ArrVal_2850) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg v_ArrVal_2845)))) (not (= (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_712 v_ArrVal_2845) |v_ULTIMATE.start_main_~l~0#1.base_204|))) (_ bv0 1))) (not (= (_ bv0 1) (select |c_#valid| v_arrayElimCell_712))) (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32)))))) is different from false [2021-11-23 17:16:23,829 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2850 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_712 (_ BitVec 32)) (v_ArrVal_2840 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_204| (_ BitVec 32)) (v_ArrVal_2845 (_ BitVec 1))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_712 v_ArrVal_2840) |v_ULTIMATE.start_main_~l~0#1.base_204| v_ArrVal_2850) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_712 v_ArrVal_2845) |v_ULTIMATE.start_main_~l~0#1.base_204|)))))) (not (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg v_ArrVal_2845)))) (not (= (_ bv0 1) (select |c_#valid| v_arrayElimCell_712))) (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32)))))) is different from false [2021-11-23 17:16:24,098 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 17 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 18 not checked. [2021-11-23 17:16:24,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930690816] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:16:24,098 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 17:16:24,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11, 12, 11, 12] total 36 [2021-11-23 17:16:24,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404136945] [2021-11-23 17:16:24,099 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 17:16:24,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-11-23 17:16:24,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:16:24,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-11-23 17:16:24,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=689, Unknown=9, NotChecked=472, Total=1260 [2021-11-23 17:16:24,100 INFO L87 Difference]: Start difference. First operand 353 states and 537 transitions. Second operand has 36 states, 36 states have (on average 4.444444444444445) internal successors, (160), 36 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:16:42,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:16:42,480 INFO L93 Difference]: Finished difference Result 553 states and 804 transitions. [2021-11-23 17:16:42,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-23 17:16:42,481 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 4.444444444444445) internal successors, (160), 36 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-23 17:16:42,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:16:42,485 INFO L225 Difference]: With dead ends: 553 [2021-11-23 17:16:42,485 INFO L226 Difference]: Without dead ends: 538 [2021-11-23 17:16:42,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 231 SyntacticMatches, 8 SemanticMatches, 57 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 20.4s TimeCoverageRelationStatistics Valid=311, Invalid=2261, Unknown=10, NotChecked=840, Total=3422 [2021-11-23 17:16:42,489 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 94 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 734 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-23 17:16:42,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 869 Invalid, 1056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 315 Invalid, 0 Unknown, 734 Unchecked, 1.6s Time] [2021-11-23 17:16:42,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-11-23 17:16:42,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 302. [2021-11-23 17:16:42,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 301 states have (on average 1.5913621262458473) internal successors, (479), 301 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:16:42,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 479 transitions. [2021-11-23 17:16:42,659 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 479 transitions. Word has length 44 [2021-11-23 17:16:42,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:16:42,660 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 479 transitions. [2021-11-23 17:16:42,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.444444444444445) internal successors, (160), 36 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:16:42,660 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 479 transitions. [2021-11-23 17:16:42,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 17:16:42,661 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:16:42,661 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:16:42,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2021-11-23 17:16:42,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (51)] Forceful destruction successful, exit code 0 [2021-11-23 17:16:43,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2021-11-23 17:16:43,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:16:43,283 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:16:43,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:16:43,283 INFO L85 PathProgramCache]: Analyzing trace with hash 664827425, now seen corresponding path program 1 times [2021-11-23 17:16:43,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:16:43,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1199136100] [2021-11-23 17:16:43,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:16:43,284 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:16:43,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:16:43,284 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:16:43,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2021-11-23 17:16:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:16:43,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-23 17:16:43,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:16:43,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:16:43,725 INFO L354 Elim1Store]: treesize reduction 74, result has 20.4 percent of original size [2021-11-23 17:16:43,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 26 [2021-11-23 17:16:43,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:16:43,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:16:43,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 48 [2021-11-23 17:16:43,915 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:16:43,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 25 treesize of output 36 [2021-11-23 17:16:43,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:16:44,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:16:44,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:16:44,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 119 [2021-11-23 17:16:44,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:16:44,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 74 [2021-11-23 17:16:44,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:16:44,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 92 [2021-11-23 17:16:44,196 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-23 17:16:44,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 39 [2021-11-23 17:16:44,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-23 17:16:46,271 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 17:16:46,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 212 treesize of output 103 [2021-11-23 17:16:46,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 48 [2021-11-23 17:16:46,567 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 12 proven. 43 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 17:16:46,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:16:49,153 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:16:49,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:16:49,162 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:16:49,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:16:49,292 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_190 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2928 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.offset_209| (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_209| (_ BitVec 32)) (v_arrayElimArr_191 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_209| v_ArrVal_2928) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_209| v_arrayElimArr_190) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_209| v_arrayElimArr_191) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_209|)))) (not (= (select v_arrayElimArr_191 |v_ULTIMATE.start_main_~l~0#1.offset_209|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select v_arrayElimArr_190 |v_ULTIMATE.start_main_~l~0#1.offset_209|) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv0 32))) (not (= (select .cse0 (bvadd (_ bv8 32) .cse1)) (_ bv2 32)))))) is different from false [2021-11-23 17:16:49,686 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:16:49,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 121 [2021-11-23 17:16:49,692 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:16:49,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 91 [2021-11-23 17:16:49,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 109 treesize of output 89 [2021-11-23 17:16:49,711 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:16:49,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 61 [2021-11-23 17:16:49,714 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:16:49,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-11-23 17:16:49,825 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2916 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2928 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_209| (_ BitVec 32)) (v_ArrVal_2918 (_ BitVec 1)) (v_arrayElimCell_728 (_ BitVec 32))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_728 v_ArrVal_2916) |v_ULTIMATE.start_main_~l~0#1.base_209| v_ArrVal_2928) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_2918) (_ bv1 1)))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_728 v_ArrVal_2918) |v_ULTIMATE.start_main_~l~0#1.base_209|))))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_arrayElimCell_728))))))) is different from false [2021-11-23 17:16:50,202 INFO L354 Elim1Store]: treesize reduction 106, result has 0.9 percent of original size [2021-11-23 17:16:50,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 1 [2021-11-23 17:16:50,208 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 15 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 18 not checked. [2021-11-23 17:16:50,208 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:16:50,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1199136100] [2021-11-23 17:16:50,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1199136100] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:16:50,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1348091702] [2021-11-23 17:16:50,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:16:50,209 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:16:50,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:16:50,209 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:16:50,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2021-11-23 17:16:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:16:50,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-23 17:16:50,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:16:50,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:16:50,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:16:50,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:16:50,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2021-11-23 17:16:50,885 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-23 17:16:50,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 24 treesize of output 31 [2021-11-23 17:16:50,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:16:50,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:16:51,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:16:51,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:16:51,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 54 [2021-11-23 17:16:51,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:16:51,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2021-11-23 17:16:51,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:16:51,174 INFO L354 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2021-11-23 17:16:51,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 34 [2021-11-23 17:16:51,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2021-11-23 17:16:51,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-11-23 17:16:53,188 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-23 17:16:53,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 57 [2021-11-23 17:16:53,203 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-23 17:16:53,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2021-11-23 17:16:53,441 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 15 proven. 40 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 17:16:53,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:16:53,723 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:16:53,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:16:53,731 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:16:53,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:16:53,865 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_197 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_196 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_214| (_ BitVec 32)) (v_ArrVal_3000 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_214| v_ArrVal_3000) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_214| v_arrayElimArr_196) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_214| v_arrayElimArr_197) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select .cse0 (bvadd (_ bv8 32) .cse1)) (_ bv2 32))) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv0 32))) (not (= (select v_arrayElimArr_196 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_214|))) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_197 (_ bv0 32))))))) is different from false [2021-11-23 17:16:54,275 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:16:54,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 129 treesize of output 115 [2021-11-23 17:16:54,280 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:16:54,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 87 [2021-11-23 17:16:54,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 102 treesize of output 82 [2021-11-23 17:16:54,315 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:16:54,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 59 [2021-11-23 17:16:54,320 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:16:54,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2021-11-23 17:16:54,480 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2992 (_ BitVec 1)) (v_arrayElimCell_746 (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_214| (_ BitVec 32)) (v_ArrVal_3000 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2988 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_746 v_ArrVal_2988) |v_ULTIMATE.start_main_~l~0#1.base_214| v_ArrVal_3000) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (select (store |c_#valid| v_arrayElimCell_746 v_ArrVal_2992) |v_ULTIMATE.start_main_~l~0#1.base_214|))) (not (= (_ bv0 1) (select |c_#valid| v_arrayElimCell_746))) (not (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg v_ArrVal_2992)))))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32)))))) is different from false [2021-11-23 17:16:54,951 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 15 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 18 not checked. [2021-11-23 17:16:54,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1348091702] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:16:54,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515213960] [2021-11-23 17:16:54,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:16:54,952 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:16:54,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:16:54,957 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:16:54,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2021-11-23 17:16:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:16:55,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-23 17:16:55,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:16:55,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:16:55,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:16:55,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:16:55,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:16:55,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:16:55,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2021-11-23 17:16:55,489 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:16:55,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 26 treesize of output 37 [2021-11-23 17:16:55,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:16:55,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:16:55,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:16:55,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 60 [2021-11-23 17:16:55,767 INFO L354 Elim1Store]: treesize reduction 8, result has 74.2 percent of original size [2021-11-23 17:16:55,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 39 [2021-11-23 17:16:55,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-23 17:16:55,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2021-11-23 17:16:57,426 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 17:16:57,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 58 [2021-11-23 17:16:57,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 10 [2021-11-23 17:16:57,528 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 15 proven. 40 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 17:16:57,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:16:57,860 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:16:57,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:16:57,868 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:16:57,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:16:58,002 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_203 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.offset_219| (_ BitVec 32)) (v_arrayElimArr_202 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_219| (_ BitVec 32)) (v_ArrVal_3069 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_219| v_ArrVal_3069) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_219| v_arrayElimArr_202) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_219| v_arrayElimArr_203) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_219|))) (not (= (_ bv2 32) (select .cse0 (bvadd (_ bv8 32) .cse1)))) (not (= (select v_arrayElimArr_203 |v_ULTIMATE.start_main_~l~0#1.offset_219|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv0 32))) (not (= (select v_arrayElimArr_202 |v_ULTIMATE.start_main_~l~0#1.offset_219|) |c_ULTIMATE.start_main_~l~0#1.base|))))) is different from false [2021-11-23 17:16:58,422 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:16:58,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 121 [2021-11-23 17:16:58,429 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:16:58,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 91 [2021-11-23 17:16:58,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 107 treesize of output 87 [2021-11-23 17:16:58,445 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:16:58,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 61 [2021-11-23 17:16:58,448 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:16:58,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-11-23 17:16:58,567 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_762 (_ BitVec 32)) (v_ArrVal_3067 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_219| (_ BitVec 32)) (v_ArrVal_3069 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3065 (_ BitVec 1))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_762 v_ArrVal_3067) |v_ULTIMATE.start_main_~l~0#1.base_219| v_ArrVal_3069) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv2 32))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_3065) (_ bv1 1)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_arrayElimCell_762)))) (not (= (_ bv0 1) (bvneg (select (store |c_#valid| v_arrayElimCell_762 v_ArrVal_3065) |v_ULTIMATE.start_main_~l~0#1.base_219|)))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv0 32)))))) is different from false [2021-11-23 17:16:58,948 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 15 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 18 not checked. [2021-11-23 17:16:58,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515213960] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:16:58,949 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 17:16:58,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11, 11, 11, 11] total 34 [2021-11-23 17:16:58,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567350131] [2021-11-23 17:16:58,949 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 17:16:58,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-23 17:16:58,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:16:58,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-23 17:16:58,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=687, Unknown=7, NotChecked=342, Total=1122 [2021-11-23 17:16:58,951 INFO L87 Difference]: Start difference. First operand 302 states and 479 transitions. Second operand has 34 states, 34 states have (on average 4.882352941176471) internal successors, (166), 34 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:17:07,490 WARN L227 SmtUtils]: Spent 7.13s on a formula simplification. DAG size of input: 283 DAG size of output: 73 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 17:17:19,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:17:19,067 INFO L93 Difference]: Finished difference Result 609 states and 925 transitions. [2021-11-23 17:17:19,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-23 17:17:19,067 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.882352941176471) internal successors, (166), 34 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-11-23 17:17:19,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:17:19,071 INFO L225 Difference]: With dead ends: 609 [2021-11-23 17:17:19,071 INFO L226 Difference]: Without dead ends: 607 [2021-11-23 17:17:19,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 252 SyntacticMatches, 10 SemanticMatches, 67 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 1063 ImplicationChecksByTransitivity, 22.4s TimeCoverageRelationStatistics Valid=483, Invalid=3440, Unknown=7, NotChecked=762, Total=4692 [2021-11-23 17:17:19,073 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 109 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 905 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-23 17:17:19,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 635 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 372 Invalid, 0 Unknown, 905 Unchecked, 1.4s Time] [2021-11-23 17:17:19,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2021-11-23 17:17:19,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 213. [2021-11-23 17:17:19,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 212 states have (on average 1.570754716981132) internal successors, (333), 212 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:17:19,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 333 transitions. [2021-11-23 17:17:19,169 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 333 transitions. Word has length 46 [2021-11-23 17:17:19,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:17:19,169 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 333 transitions. [2021-11-23 17:17:19,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.882352941176471) internal successors, (166), 34 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:17:19,170 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 333 transitions. [2021-11-23 17:17:19,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 17:17:19,170 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:17:19,170 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:17:19,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2021-11-23 17:17:19,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2021-11-23 17:17:19,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (54)] Forceful destruction successful, exit code 0 [2021-11-23 17:17:19,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt [2021-11-23 17:17:19,771 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:17:19,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:17:19,772 INFO L85 PathProgramCache]: Analyzing trace with hash 556563008, now seen corresponding path program 5 times [2021-11-23 17:17:19,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:17:19,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495872520] [2021-11-23 17:17:19,772 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-23 17:17:19,772 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:17:19,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:17:19,773 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:17:19,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2021-11-23 17:17:20,198 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-11-23 17:17:20,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:17:20,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-23 17:17:20,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:17:20,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:17:20,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:17:20,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:17:20,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:17:20,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:17:20,369 INFO L354 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2021-11-23 17:17:20,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 25 treesize of output 34 [2021-11-23 17:17:20,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-11-23 17:17:20,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-23 17:17:20,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:17:20,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:17:20,546 INFO L354 Elim1Store]: treesize reduction 26, result has 16.1 percent of original size [2021-11-23 17:17:20,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 78 [2021-11-23 17:17:20,582 INFO L354 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2021-11-23 17:17:20,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 35 [2021-11-23 17:17:20,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 48 [2021-11-23 17:17:20,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-23 17:17:21,622 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-23 17:17:21,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 169 treesize of output 66 [2021-11-23 17:17:21,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2021-11-23 17:17:21,668 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:17:21,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:17:22,126 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:17:22,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 65 [2021-11-23 17:17:22,134 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:17:22,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 56 [2021-11-23 17:17:22,371 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_210 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_225| (_ BitVec 32)) (v_arrayElimArr_209 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.offset_225| (_ BitVec 32))) (or (not (= (select v_arrayElimArr_209 |v_ULTIMATE.start_main_~l~0#1.offset_225|) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_225|))))) (not (= (select v_arrayElimArr_210 |v_ULTIMATE.start_main_~l~0#1.offset_225|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (let ((.cse0 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_225| v_arrayElimArr_210)) (.cse3 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_225| v_arrayElimArr_209))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse2 (select (select .cse0 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (and (= (select (select .cse0 .cse1) .cse2) (_ bv0 32)) (= (select (select .cse3 .cse1) .cse2) (_ bv0 32))))))) is different from false [2021-11-23 17:17:23,071 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:17:23,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 119 [2021-11-23 17:17:23,089 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:17:23,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 104 [2021-11-23 17:17:25,950 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_212 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_210 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_211 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_209 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_225| (_ BitVec 32)) (v_ArrVal_3142 (_ BitVec 1)) (|v_ULTIMATE.start_main_~l~0#1.offset_225| (_ BitVec 32))) (let ((.cse5 (select v_arrayElimArr_210 |v_ULTIMATE.start_main_~l~0#1.offset_225|)) (.cse0 (select v_arrayElimArr_209 |v_ULTIMATE.start_main_~l~0#1.offset_225|))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select (store |c_#valid| .cse0 v_ArrVal_3142) |v_ULTIMATE.start_main_~l~0#1.base_225|)))))) (let ((.cse4 (store (store |c_#memory_$Pointer$.offset| .cse0 v_arrayElimArr_212) |v_ULTIMATE.start_main_~l~0#1.base_225| v_arrayElimArr_210)) (.cse1 (store (store |c_#memory_$Pointer$.base| .cse0 v_arrayElimArr_211) |v_ULTIMATE.start_main_~l~0#1.base_225| v_arrayElimArr_209))) (let ((.cse2 (select (select .cse1 .cse0) .cse5)) (.cse3 (select (select .cse4 .cse0) .cse5))) (and (= (select (select .cse1 .cse2) .cse3) (_ bv0 32)) (= (select (select .cse4 .cse2) .cse3) (_ bv0 32))))) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_211 .cse5))) (not (= (select v_arrayElimArr_212 .cse5) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv0 1) (bvneg (select |c_#valid| .cse0)))) (not (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg v_ArrVal_3142))))))) is different from false [2021-11-23 17:17:33,716 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:17:33,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 215 treesize of output 172 [2021-11-23 17:17:33,730 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:17:33,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 155 treesize of output 112 [2021-11-23 17:17:33,735 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:17:33,736 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:17:33,736 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:17:33,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:17:33,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 44 [2021-11-23 17:17:33,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 82 treesize of output 72 [2021-11-23 17:17:33,771 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:17:33,772 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:17:33,773 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:17:33,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 12 [2021-11-23 17:17:33,806 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 16 not checked. [2021-11-23 17:17:33,806 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:17:33,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495872520] [2021-11-23 17:17:33,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1495872520] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:17:33,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1721201820] [2021-11-23 17:17:33,807 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-23 17:17:33,807 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:17:33,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:17:33,813 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:17:33,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2021-11-23 17:17:34,522 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-11-23 17:17:34,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:17:34,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-23 17:17:34,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:17:34,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:17:34,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:17:34,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:17:34,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:17:34,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:17:34,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2021-11-23 17:17:34,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:17:34,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-11-23 17:17:34,701 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:17:34,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 28 treesize of output 39 [2021-11-23 17:17:34,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-11-23 17:17:34,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:17:34,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:17:34,930 INFO L354 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2021-11-23 17:17:34,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 57 [2021-11-23 17:17:34,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:17:34,947 INFO L354 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2021-11-23 17:17:34,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 30 [2021-11-23 17:17:34,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:17:34,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 41 [2021-11-23 17:17:34,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-11-23 17:17:36,474 INFO L354 Elim1Store]: treesize reduction 85, result has 11.5 percent of original size [2021-11-23 17:17:36,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 132 treesize of output 74 [2021-11-23 17:17:36,496 INFO L354 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2021-11-23 17:17:36,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 25 [2021-11-23 17:17:36,508 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:17:36,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:17:36,716 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:17:36,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 65 [2021-11-23 17:17:36,741 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:17:36,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 56 [2021-11-23 17:17:36,930 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_232| (_ BitVec 32)) (v_arrayElimArr_217 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_218 (Array (_ BitVec 32) (_ BitVec 32)))) (or (let ((.cse0 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_232| v_arrayElimArr_218)) (.cse3 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_232| v_arrayElimArr_217))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse2 (select (select .cse0 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (and (= (select (select .cse0 .cse1) .cse2) (_ bv0 32)) (= (select (select .cse3 .cse1) .cse2) (_ bv0 32))))) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_217 (_ bv0 32)))) (not (= (select v_arrayElimArr_218 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_232|)))))) is different from false [2021-11-23 17:17:37,560 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:17:37,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 119 [2021-11-23 17:17:37,572 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:17:37,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 104 [2021-11-23 17:17:38,599 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_232| (_ BitVec 32)) (v_arrayElimArr_217 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_220 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_218 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_219 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3220 (_ BitVec 1))) (let ((.cse0 (select v_arrayElimArr_218 (_ bv0 32))) (.cse1 (select v_arrayElimArr_217 (_ bv0 32)))) (or (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_219 .cse0))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| .cse1 v_ArrVal_3220) |v_ULTIMATE.start_main_~l~0#1.base_232|))))) (not (= .cse0 (_ bv0 32))) (let ((.cse2 (store (store |c_#memory_$Pointer$.offset| .cse1 v_arrayElimArr_220) |v_ULTIMATE.start_main_~l~0#1.base_232| v_arrayElimArr_218)) (.cse5 (store (store |c_#memory_$Pointer$.base| .cse1 v_arrayElimArr_219) |v_ULTIMATE.start_main_~l~0#1.base_232| v_arrayElimArr_217))) (let ((.cse3 (select (select .cse5 .cse1) .cse0)) (.cse4 (select (select .cse2 .cse1) .cse0))) (and (= (select (select .cse2 .cse3) .cse4) (_ bv0 32)) (= (select (select .cse5 .cse3) .cse4) (_ bv0 32))))) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_220 .cse0))) (not (= (_ bv0 1) (select |c_#valid| .cse1))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_3220) (_ bv1 1))))))) is different from false [2021-11-23 17:17:41,763 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:17:41,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 191 treesize of output 156 [2021-11-23 17:17:41,777 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:17:41,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 108 [2021-11-23 17:17:41,781 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:17:41,782 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:17:41,783 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:17:41,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:17:41,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 44 [2021-11-23 17:17:41,793 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:17:41,794 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:17:41,794 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:17:41,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 12 [2021-11-23 17:17:41,820 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 16 not checked. [2021-11-23 17:17:41,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1721201820] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:17:41,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31516250] [2021-11-23 17:17:41,820 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-23 17:17:41,820 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:17:41,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:17:41,845 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:17:41,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2021-11-23 17:17:45,312 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-11-23 17:17:45,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:17:45,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-23 17:17:45,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:17:45,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:17:45,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:17:45,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:17:45,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:17:45,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:17:45,457 INFO L354 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2021-11-23 17:17:45,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 24 treesize of output 33 [2021-11-23 17:17:45,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-11-23 17:17:45,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-23 17:17:45,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:17:45,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:17:45,609 INFO L354 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2021-11-23 17:17:45,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 71 [2021-11-23 17:17:45,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:17:45,645 INFO L354 Elim1Store]: treesize reduction 8, result has 74.2 percent of original size [2021-11-23 17:17:45,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 44 [2021-11-23 17:17:45,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 60 [2021-11-23 17:17:46,519 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-23 17:17:46,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 169 treesize of output 66 [2021-11-23 17:17:46,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2021-11-23 17:17:46,536 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:17:46,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:17:46,747 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:17:46,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 65 [2021-11-23 17:17:46,755 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:17:46,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 56 [2021-11-23 17:17:46,967 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_227 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_228 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_239| (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.offset_239| (_ BitVec 32))) (or (not (= (select v_arrayElimArr_228 |v_ULTIMATE.start_main_~l~0#1.offset_239|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select v_arrayElimArr_227 |v_ULTIMATE.start_main_~l~0#1.offset_239|) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_239|)))) (let ((.cse0 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_239| v_arrayElimArr_228)) (.cse3 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_239| v_arrayElimArr_227))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse2 (select (select .cse0 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (and (= (select (select .cse0 .cse1) .cse2) (_ bv0 32)) (= (select (select .cse3 .cse1) .cse2) (_ bv0 32))))))) is different from false [2021-11-23 17:17:47,673 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:17:47,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 119 [2021-11-23 17:17:47,687 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:17:47,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 104 [2021-11-23 17:17:50,110 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_227 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_228 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_230 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_239| (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.offset_239| (_ BitVec 32)) (v_arrayElimArr_229 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3296 (_ BitVec 1))) (let ((.cse0 (select v_arrayElimArr_228 |v_ULTIMATE.start_main_~l~0#1.offset_239|)) (.cse5 (select v_arrayElimArr_227 |v_ULTIMATE.start_main_~l~0#1.offset_239|))) (or (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_230 .cse0))) (let ((.cse4 (store (store |c_#memory_$Pointer$.offset| .cse5 v_arrayElimArr_230) |v_ULTIMATE.start_main_~l~0#1.base_239| v_arrayElimArr_228)) (.cse1 (store (store |c_#memory_$Pointer$.base| .cse5 v_arrayElimArr_229) |v_ULTIMATE.start_main_~l~0#1.base_239| v_arrayElimArr_227))) (let ((.cse2 (select (select .cse1 .cse5) .cse0)) (.cse3 (select (select .cse4 .cse5) .cse0))) (and (= (select (select .cse1 .cse2) .cse3) (_ bv0 32)) (= (select (select .cse4 .cse2) .cse3) (_ bv0 32))))) (not (= (_ bv0 1) (select |c_#valid| .cse5))) (not (= (_ bv0 1) (bvadd (bvneg (bvneg v_ArrVal_3296)) (_ bv1 1)))) (not (= (select v_arrayElimArr_229 .cse0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| .cse5 v_ArrVal_3296) |v_ULTIMATE.start_main_~l~0#1.base_239|)))))))) is different from false [2021-11-23 17:17:57,354 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:17:57,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 215 treesize of output 172 [2021-11-23 17:17:57,368 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:17:57,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 155 treesize of output 112 [2021-11-23 17:17:57,423 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-23 17:17:57,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 213 treesize of output 205 [2021-11-23 17:17:57,432 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:17:57,432 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:17:57,433 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:17:57,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:17:57,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 44 [2021-11-23 17:17:57,446 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:17:57,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 97 [2021-11-23 17:17:57,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 297 treesize of output 259 [2021-11-23 17:17:57,470 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:17:57,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 259 treesize of output 233 [2021-11-23 17:17:57,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 69 treesize of output 63 [2021-11-23 17:17:57,492 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:17:57,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 219 treesize of output 203 [2021-11-23 17:17:57,610 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 16 not checked. [2021-11-23 17:17:57,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31516250] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:17:57,611 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 17:17:57,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 10, 10] total 26 [2021-11-23 17:17:57,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657780055] [2021-11-23 17:17:57,611 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 17:17:57,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-23 17:17:57,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:17:57,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-23 17:17:57,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=335, Unknown=6, NotChecked=246, Total=650 [2021-11-23 17:17:57,612 INFO L87 Difference]: Start difference. First operand 213 states and 333 transitions. Second operand has 26 states, 26 states have (on average 5.269230769230769) internal successors, (137), 26 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:17:59,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:17:59,727 INFO L93 Difference]: Finished difference Result 423 states and 633 transitions. [2021-11-23 17:17:59,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 17:17:59,733 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.269230769230769) internal successors, (137), 26 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-11-23 17:17:59,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:17:59,736 INFO L225 Difference]: With dead ends: 423 [2021-11-23 17:17:59,736 INFO L226 Difference]: Without dead ends: 390 [2021-11-23 17:17:59,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 250 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=79, Invalid=401, Unknown=6, NotChecked=270, Total=756 [2021-11-23 17:17:59,737 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 137 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 530 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-23 17:17:59,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 535 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 96 Invalid, 0 Unknown, 530 Unchecked, 1.5s Time] [2021-11-23 17:17:59,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2021-11-23 17:17:59,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 358. [2021-11-23 17:17:59,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 357 states have (on average 1.5434173669467788) internal successors, (551), 357 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:17:59,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 551 transitions. [2021-11-23 17:17:59,930 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 551 transitions. Word has length 47 [2021-11-23 17:17:59,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:17:59,930 INFO L470 AbstractCegarLoop]: Abstraction has 358 states and 551 transitions. [2021-11-23 17:17:59,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.269230769230769) internal successors, (137), 26 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:17:59,931 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 551 transitions. [2021-11-23 17:17:59,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 17:17:59,932 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:17:59,932 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:17:59,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (57)] Forceful destruction successful, exit code 0 [2021-11-23 17:18:00,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (56)] Forceful destruction successful, exit code 0 [2021-11-23 17:18:00,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2021-11-23 17:18:00,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:18:00,546 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:18:00,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:18:00,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1321557756, now seen corresponding path program 2 times [2021-11-23 17:18:00,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:18:00,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628732014] [2021-11-23 17:18:00,547 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 17:18:00,548 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:18:00,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:18:00,548 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:18:00,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2021-11-23 17:18:00,892 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 17:18:00,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:18:00,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 58 conjunts are in the unsatisfiable core [2021-11-23 17:18:00,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:18:00,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:18:00,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:18:00,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:18:01,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:18:01,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:18:01,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-11-23 17:18:01,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:18:01,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2021-11-23 17:18:01,042 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-23 17:18:01,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 20 [2021-11-23 17:18:01,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-11-23 17:18:01,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:18:01,184 INFO L354 Elim1Store]: treesize reduction 34, result has 40.4 percent of original size [2021-11-23 17:18:01,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 55 [2021-11-23 17:18:01,230 INFO L354 Elim1Store]: treesize reduction 38, result has 44.9 percent of original size [2021-11-23 17:18:01,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 49 [2021-11-23 17:18:01,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-11-23 17:18:01,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 19 [2021-11-23 17:18:01,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 29 treesize of output 23 [2021-11-23 17:18:19,185 INFO L354 Elim1Store]: treesize reduction 81, result has 15.6 percent of original size [2021-11-23 17:18:19,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 150 treesize of output 92 [2021-11-23 17:18:19,231 INFO L354 Elim1Store]: treesize reduction 91, result has 9.9 percent of original size [2021-11-23 17:18:19,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 62 treesize of output 49 [2021-11-23 17:18:19,398 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 9 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:18:19,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:18:22,582 INFO L354 Elim1Store]: treesize reduction 103, result has 40.8 percent of original size [2021-11-23 17:18:22,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 84 [2021-11-23 17:18:30,950 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:18:30,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 135 treesize of output 123 [2021-11-23 17:18:30,957 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:18:30,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 117 treesize of output 105 [2021-11-23 17:18:32,324 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_236 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_235 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_246| (_ BitVec 32))) (let ((.cse5 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_246| v_arrayElimArr_236)) (.cse2 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_246| v_arrayElimArr_235))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse4 (select (select .cse5 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse1 (select (select .cse5 .cse3) .cse4)) (.cse0 (select (select .cse2 .cse3) .cse4))) (or (and (= .cse0 |c_ULTIMATE.start_main_~l~0#1.base|) (= |c_ULTIMATE.start_main_~l~0#1.offset| .cse1)) (not (= (select v_arrayElimArr_236 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select v_arrayElimArr_235 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (and (= (_ bv0 32) .cse1) (= .cse0 (_ bv0 32)))))))) is different from false [2021-11-23 17:18:36,601 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:18:36,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 231 treesize of output 219 [2021-11-23 17:18:36,610 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:18:36,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 213 treesize of output 201 [2021-11-23 17:18:39,559 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_238 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_236 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_237 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_235 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_246| (_ BitVec 32))) (let ((.cse0 (select v_arrayElimArr_235 (_ bv0 32)))) (let ((.cse7 (store (store |c_#memory_$Pointer$.offset| .cse0 v_arrayElimArr_238) |v_ULTIMATE.start_main_~l~0#1.base_246| v_arrayElimArr_236)) (.cse4 (store (store |c_#memory_$Pointer$.base| .cse0 v_arrayElimArr_237) |v_ULTIMATE.start_main_~l~0#1.base_246| v_arrayElimArr_235)) (.cse2 (select v_arrayElimArr_236 (_ bv0 32)))) (let ((.cse5 (select (select .cse4 .cse0) .cse2)) (.cse6 (select (select .cse7 .cse0) .cse2))) (let ((.cse1 (select (select .cse7 .cse5) .cse6)) (.cse3 (select (select .cse4 .cse5) .cse6))) (or (not (= (select v_arrayElimArr_237 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_238 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| .cse0))))) (and (= .cse1 .cse2) (= .cse3 .cse0)) (and (= .cse1 (_ bv0 32)) (= .cse3 (_ bv0 32))) (not (= .cse2 (_ bv0 32))))))))) is different from false [2021-11-23 17:18:48,564 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:18:48,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 339 treesize of output 277 [2021-11-23 17:18:48,577 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:18:48,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 267 treesize of output 205 [2021-11-23 17:18:48,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:18:48,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:18:48,628 INFO L354 Elim1Store]: treesize reduction 48, result has 15.8 percent of original size [2021-11-23 17:18:48,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 965 treesize of output 871 [2021-11-23 17:18:48,638 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:18:48,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:18:48,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:18:48,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:18:48,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:18:48,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1341 treesize of output 1287 [2021-11-23 17:18:48,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:18:48,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:18:48,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1298 treesize of output 1144 [2021-11-23 17:18:48,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:18:48,697 INFO L354 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2021-11-23 17:18:48,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1137 treesize of output 1087 [2021-11-23 17:18:48,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:18:48,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 933 treesize of output 541 [2021-11-23 17:18:48,774 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-11-23 17:18:48,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 384 treesize of output 358 [2021-11-23 17:18:48,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 28 [2021-11-23 17:18:48,886 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 10 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 16 not checked. [2021-11-23 17:18:48,886 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:18:48,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628732014] [2021-11-23 17:18:48,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628732014] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:18:48,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1172543273] [2021-11-23 17:18:48,886 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 17:18:48,886 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:18:48,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:18:48,887 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:18:48,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2021-11-23 17:18:49,394 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 17:18:49,394 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:18:49,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-23 17:18:49,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:18:49,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:18:49,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:18:49,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:18:49,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:18:49,611 INFO L354 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2021-11-23 17:18:49,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 23 treesize of output 32 [2021-11-23 17:18:49,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2021-11-23 17:18:49,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-11-23 17:18:49,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-11-23 17:18:49,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:18:49,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:18:49,982 INFO L354 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2021-11-23 17:18:49,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 57 [2021-11-23 17:18:49,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:18:49,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:18:49,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 41 [2021-11-23 17:18:50,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:18:50,008 INFO L354 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2021-11-23 17:18:50,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 36 [2021-11-23 17:18:50,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-11-23 17:18:59,975 INFO L354 Elim1Store]: treesize reduction 85, result has 11.5 percent of original size [2021-11-23 17:18:59,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 132 treesize of output 74 [2021-11-23 17:18:59,998 INFO L354 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2021-11-23 17:18:59,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 25 [2021-11-23 17:19:00,070 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:19:00,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:19:08,861 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:19:08,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 65 [2021-11-23 17:19:08,869 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:19:08,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 56 [2021-11-23 17:19:09,069 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_253| (_ BitVec 32)) (v_arrayElimArr_243 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_244 (Array (_ BitVec 32) (_ BitVec 32)))) (or (let ((.cse3 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_253| v_arrayElimArr_244)) (.cse0 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_253| v_arrayElimArr_243))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (and (= (select (select .cse0 .cse1) .cse2) (_ bv0 32)) (= (select (select .cse3 .cse1) .cse2) (_ bv0 32))))) (not (= (select v_arrayElimArr_244 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select v_arrayElimArr_243 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_253|)))))) is different from false [2021-11-23 17:19:09,714 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:19:09,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 105 treesize of output 103 [2021-11-23 17:19:09,726 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:19:09,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 96 treesize of output 94 [2021-11-23 17:19:10,457 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_253| (_ BitVec 32)) (v_arrayElimArr_245 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3445 (_ BitVec 1)) (v_arrayElimArr_246 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_243 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_244 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select v_arrayElimArr_243 (_ bv0 32)))) (or (let ((.cse0 (store (store |c_#memory_$Pointer$.offset| .cse4 v_arrayElimArr_245) |v_ULTIMATE.start_main_~l~0#1.base_253| v_arrayElimArr_244)) (.cse3 (store (store |c_#memory_$Pointer$.base| .cse4 v_arrayElimArr_246) |v_ULTIMATE.start_main_~l~0#1.base_253| v_arrayElimArr_243))) (let ((.cse1 (select (select .cse3 .cse4) (_ bv0 32))) (.cse2 (select (select .cse0 .cse4) (_ bv0 32)))) (and (= (select (select .cse0 .cse1) .cse2) (_ bv0 32)) (= (select (select .cse3 .cse1) .cse2) (_ bv0 32))))) (not (= (select v_arrayElimArr_244 (_ bv0 32)) (_ bv0 32))) (not (= (select v_arrayElimArr_245 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| .cse4 v_ArrVal_3445) |v_ULTIMATE.start_main_~l~0#1.base_253|))))) (not (= (_ bv0 1) (bvneg (select |c_#valid| .cse4)))) (not (= (select v_arrayElimArr_246 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_3445) (_ bv1 1))))))) is different from false [2021-11-23 17:19:12,697 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:19:12,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 159 treesize of output 134 [2021-11-23 17:19:12,720 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:19:12,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 123 treesize of output 98 [2021-11-23 17:19:12,724 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:19:12,725 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:19:12,726 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:19:12,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:19:12,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 40 [2021-11-23 17:19:12,757 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-23 17:19:12,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 107 treesize of output 101 [2021-11-23 17:19:12,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 38 [2021-11-23 17:19:12,771 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:19:12,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 177 treesize of output 159 [2021-11-23 17:19:12,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 255 treesize of output 219 [2021-11-23 17:19:12,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 219 treesize of output 179 [2021-11-23 17:19:12,864 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 16 not checked. [2021-11-23 17:19:12,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1172543273] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:19:12,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427987446] [2021-11-23 17:19:12,865 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 17:19:12,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:19:12,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:19:12,866 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:19:12,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2021-11-23 17:19:13,132 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 17:19:13,132 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:19:13,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-23 17:19:13,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:19:13,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:19:13,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:19:13,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:19:13,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:19:13,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:19:13,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:19:13,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-11-23 17:19:13,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:19:13,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-23 17:19:13,374 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:19:13,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 24 treesize of output 35 [2021-11-23 17:19:13,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:19:13,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:19:13,636 INFO L354 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2021-11-23 17:19:13,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 71 [2021-11-23 17:19:13,691 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-11-23 17:19:13,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 43 [2021-11-23 17:19:13,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:19:13,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 60 [2021-11-23 17:19:21,497 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-23 17:19:21,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 169 treesize of output 66 [2021-11-23 17:19:21,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2021-11-23 17:19:21,515 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:19:21,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:19:21,738 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:19:21,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 65 [2021-11-23 17:19:21,746 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:19:21,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 56 [2021-11-23 17:19:21,959 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.offset_260| (_ BitVec 32)) (v_arrayElimArr_254 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_260| (_ BitVec 32)) (v_arrayElimArr_253 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (select v_arrayElimArr_253 |v_ULTIMATE.start_main_~l~0#1.offset_260|) |c_ULTIMATE.start_main_~l~0#1.base|)) (let ((.cse3 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_260| v_arrayElimArr_254)) (.cse0 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_260| v_arrayElimArr_253))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (and (= (_ bv0 32) (select (select .cse0 .cse1) .cse2)) (= (select (select .cse3 .cse1) .cse2) (_ bv0 32))))) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_254 |v_ULTIMATE.start_main_~l~0#1.offset_260|))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_260|)))))) is different from false [2021-11-23 17:19:22,659 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:19:22,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 119 [2021-11-23 17:19:22,669 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:19:22,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 104 [2021-11-23 17:19:25,020 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.offset_260| (_ BitVec 32)) (v_arrayElimArr_256 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3523 (_ BitVec 1)) (v_arrayElimArr_254 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_260| (_ BitVec 32)) (v_arrayElimArr_255 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_253 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select v_arrayElimArr_254 |v_ULTIMATE.start_main_~l~0#1.offset_260|)) (.cse5 (select v_arrayElimArr_253 |v_ULTIMATE.start_main_~l~0#1.offset_260|))) (or (not (= (select v_arrayElimArr_255 .cse0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select v_arrayElimArr_256 .cse0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (bvadd (bvneg (bvneg v_ArrVal_3523)) (_ bv1 1)))) (let ((.cse4 (store (store |c_#memory_$Pointer$.offset| .cse5 v_arrayElimArr_255) |v_ULTIMATE.start_main_~l~0#1.base_260| v_arrayElimArr_254)) (.cse1 (store (store |c_#memory_$Pointer$.base| .cse5 v_arrayElimArr_256) |v_ULTIMATE.start_main_~l~0#1.base_260| v_arrayElimArr_253))) (let ((.cse2 (select (select .cse1 .cse5) .cse0)) (.cse3 (select (select .cse4 .cse5) .cse0))) (and (= (select (select .cse1 .cse2) .cse3) (_ bv0 32)) (= (select (select .cse4 .cse2) .cse3) (_ bv0 32))))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| .cse5 v_ArrVal_3523) |v_ULTIMATE.start_main_~l~0#1.base_260|))))) (not (= (_ bv0 1) (bvneg (select |c_#valid| .cse5))))))) is different from false [2021-11-23 17:19:32,226 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:19:32,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 215 treesize of output 172 [2021-11-23 17:19:32,240 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:19:32,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 155 treesize of output 112 [2021-11-23 17:19:32,245 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:19:32,246 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:19:32,246 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:19:32,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:19:32,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 44 [2021-11-23 17:19:32,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 77 treesize of output 67 [2021-11-23 17:19:32,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 83 treesize of output 67 [2021-11-23 17:19:32,266 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:19:32,267 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:19:32,267 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:19:32,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2021-11-23 17:19:32,301 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 16 not checked. [2021-11-23 17:19:32,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427987446] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:19:32,301 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 17:19:32,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 10, 10, 10, 10] total 46 [2021-11-23 17:19:32,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710943207] [2021-11-23 17:19:32,301 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 17:19:32,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-11-23 17:19:32,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:19:32,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-11-23 17:19:32,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=1407, Unknown=17, NotChecked=486, Total=2070 [2021-11-23 17:19:32,303 INFO L87 Difference]: Start difference. First operand 358 states and 551 transitions. Second operand has 46 states, 46 states have (on average 4.326086956521739) internal successors, (199), 46 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:19:33,925 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse8 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32)))) (and (forall ((|v_ULTIMATE.start_main_~l~0#1.offset_260| (_ BitVec 32)) (v_arrayElimArr_254 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_260| (_ BitVec 32)) (v_arrayElimArr_253 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (select v_arrayElimArr_253 |v_ULTIMATE.start_main_~l~0#1.offset_260|) |c_ULTIMATE.start_main_~l~0#1.base|)) (let ((.cse3 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_260| v_arrayElimArr_254)) (.cse0 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_260| v_arrayElimArr_253))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (and (= (_ bv0 32) (select (select .cse0 .cse1) .cse2)) (= (select (select .cse3 .cse1) .cse2) (_ bv0 32))))) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_254 |v_ULTIMATE.start_main_~l~0#1.offset_260|))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_260|)))))) (= |c_ULTIMATE.start_main_~l~0#1.offset| (_ bv0 32)) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_253| (_ BitVec 32)) (v_arrayElimArr_243 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_244 (Array (_ BitVec 32) (_ BitVec 32)))) (or (let ((.cse7 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_253| v_arrayElimArr_244)) (.cse4 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_253| v_arrayElimArr_243))) (let ((.cse5 (select (select .cse4 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (and (= (select (select .cse4 .cse5) .cse6) (_ bv0 32)) (= (select (select .cse7 .cse5) .cse6) (_ bv0 32))))) (not (= (select v_arrayElimArr_244 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select v_arrayElimArr_243 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_253|)))))) (= (select (select |c_#memory_$Pointer$.offset| .cse8) (_ bv0 32)) (_ bv0 32)) (not (= .cse8 |c_ULTIMATE.start_main_~l~0#1.base|)) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~l~0#1.base|)) (_ bv1 1))) (forall ((v_arrayElimArr_236 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_235 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_246| (_ BitVec 32))) (let ((.cse14 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_246| v_arrayElimArr_236)) (.cse11 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_246| v_arrayElimArr_235))) (let ((.cse12 (select (select .cse11 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse13 (select (select .cse14 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse10 (select (select .cse14 .cse12) .cse13)) (.cse9 (select (select .cse11 .cse12) .cse13))) (or (and (= .cse9 |c_ULTIMATE.start_main_~l~0#1.base|) (= |c_ULTIMATE.start_main_~l~0#1.offset| .cse10)) (not (= (select v_arrayElimArr_236 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select v_arrayElimArr_235 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (and (= (_ bv0 32) .cse10) (= .cse9 (_ bv0 32)))))))) (= (select (select |c_#memory_$Pointer$.base| .cse8) (_ bv0 32)) (_ bv0 32)) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32)) (_ bv0 32)) (exists ((v_arrayElimCell_870 (_ BitVec 1))) (let ((.cse15 (bvneg v_arrayElimCell_870))) (and (= (_ bv0 1) (bvadd .cse15 (_ bv1 1))) (= (_ bv0 1) (bvadd (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) (_ bv0 32))) .cse15))))))) is different from false [2021-11-23 17:20:30,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:20:30,703 INFO L93 Difference]: Finished difference Result 472 states and 675 transitions. [2021-11-23 17:20:30,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-23 17:20:30,704 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 4.326086956521739) internal successors, (199), 46 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-11-23 17:20:30,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:20:30,706 INFO L225 Difference]: With dead ends: 472 [2021-11-23 17:20:30,706 INFO L226 Difference]: Without dead ends: 418 [2021-11-23 17:20:30,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 235 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 993 ImplicationChecksByTransitivity, 106.4s TimeCoverageRelationStatistics Valid=479, Invalid=3435, Unknown=20, NotChecked=896, Total=4830 [2021-11-23 17:20:30,707 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 116 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 680 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-23 17:20:30,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 736 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 262 Invalid, 0 Unknown, 680 Unchecked, 2.7s Time] [2021-11-23 17:20:30,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2021-11-23 17:20:30,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 380. [2021-11-23 17:20:30,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 379 states have (on average 1.5145118733509235) internal successors, (574), 379 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:20:30,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 574 transitions. [2021-11-23 17:20:30,880 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 574 transitions. Word has length 47 [2021-11-23 17:20:30,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:20:30,880 INFO L470 AbstractCegarLoop]: Abstraction has 380 states and 574 transitions. [2021-11-23 17:20:30,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 4.326086956521739) internal successors, (199), 46 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:20:30,880 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 574 transitions. [2021-11-23 17:20:30,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 17:20:30,881 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:20:30,881 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:20:30,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2021-11-23 17:20:31,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (60)] Forceful destruction successful, exit code 0 [2021-11-23 17:20:31,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2021-11-23 17:20:31,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:20:31,482 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:20:31,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:20:31,482 INFO L85 PathProgramCache]: Analyzing trace with hash -191172980, now seen corresponding path program 1 times [2021-11-23 17:20:31,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:20:31,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204883155] [2021-11-23 17:20:31,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:20:31,483 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:20:31,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:20:31,484 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:20:31,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2021-11-23 17:20:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:20:31,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-23 17:20:31,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:20:31,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:20:31,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:20:31,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:20:31,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:20:31,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:20:32,039 INFO L354 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2021-11-23 17:20:32,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 24 treesize of output 33 [2021-11-23 17:20:32,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-11-23 17:20:32,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-23 17:20:32,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:20:32,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:20:32,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:20:32,244 INFO L354 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2021-11-23 17:20:32,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 83 treesize of output 79 [2021-11-23 17:20:32,280 INFO L354 Elim1Store]: treesize reduction 8, result has 74.2 percent of original size [2021-11-23 17:20:32,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 41 [2021-11-23 17:20:32,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 60 [2021-11-23 17:20:33,351 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-23 17:20:33,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 169 treesize of output 66 [2021-11-23 17:20:33,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2021-11-23 17:20:33,397 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:20:33,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:20:33,845 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:20:33,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 65 [2021-11-23 17:20:33,854 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:20:33,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 56 [2021-11-23 17:20:34,096 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_263 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_264 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.offset_267| (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_267| (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_267|)))) (not (= (select v_arrayElimArr_264 |v_ULTIMATE.start_main_~l~0#1.offset_267|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (let ((.cse0 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_267| v_arrayElimArr_264)) (.cse3 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_267| v_arrayElimArr_263))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse2 (select (select .cse0 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (and (= (select (select .cse0 .cse1) .cse2) (_ bv0 32)) (= (select (select .cse3 .cse1) .cse2) (_ bv0 32))))) (not (= (select v_arrayElimArr_263 |v_ULTIMATE.start_main_~l~0#1.offset_267|) |c_ULTIMATE.start_main_~l~0#1.base|)))) is different from false [2021-11-23 17:20:34,812 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:20:34,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 119 [2021-11-23 17:20:34,824 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:20:34,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 104 [2021-11-23 17:20:37,450 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3599 (_ BitVec 1)) (v_arrayElimArr_265 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_266 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_263 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.offset_267| (_ BitVec 32)) (v_arrayElimArr_264 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_267| (_ BitVec 32))) (let ((.cse4 (select v_arrayElimArr_263 |v_ULTIMATE.start_main_~l~0#1.offset_267|)) (.cse5 (select v_arrayElimArr_264 |v_ULTIMATE.start_main_~l~0#1.offset_267|))) (or (let ((.cse0 (store (store |c_#memory_$Pointer$.offset| .cse4 v_arrayElimArr_265) |v_ULTIMATE.start_main_~l~0#1.base_267| v_arrayElimArr_264)) (.cse3 (store (store |c_#memory_$Pointer$.base| .cse4 v_arrayElimArr_266) |v_ULTIMATE.start_main_~l~0#1.base_267| v_arrayElimArr_263))) (let ((.cse1 (select (select .cse3 .cse4) .cse5)) (.cse2 (select (select .cse0 .cse4) .cse5))) (and (= (select (select .cse0 .cse1) .cse2) (_ bv0 32)) (= (select (select .cse3 .cse1) .cse2) (_ bv0 32))))) (not (= (_ bv0 1) (bvneg (select |c_#valid| .cse4)))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_3599) (_ bv1 1)))) (not (= (select v_arrayElimArr_266 .cse5) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (bvneg (select (store |c_#valid| .cse4 v_ArrVal_3599) |v_ULTIMATE.start_main_~l~0#1.base_267|)))) (not (= (select v_arrayElimArr_265 .cse5) |c_ULTIMATE.start_main_~l~0#1.offset|))))) is different from false [2021-11-23 17:20:45,878 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:20:45,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 215 treesize of output 172 [2021-11-23 17:20:45,892 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:20:45,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 155 treesize of output 112 [2021-11-23 17:20:45,939 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-23 17:20:45,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 215 treesize of output 207 [2021-11-23 17:20:45,946 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:20:45,946 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:20:45,947 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:20:45,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:20:45,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 44 [2021-11-23 17:20:45,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 262 treesize of output 214 [2021-11-23 17:20:45,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 202 treesize of output 180 [2021-11-23 17:20:45,970 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:20:45,970 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:20:45,971 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:20:45,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2021-11-23 17:20:45,997 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 16 not checked. [2021-11-23 17:20:45,997 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:20:45,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204883155] [2021-11-23 17:20:45,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204883155] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:20:45,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [890830403] [2021-11-23 17:20:45,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:20:45,999 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:20:45,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:20:45,999 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:20:46,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2021-11-23 17:20:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:20:46,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-23 17:20:46,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:20:46,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:20:46,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:20:46,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:20:46,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:20:46,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:20:46,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-11-23 17:20:46,770 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:20:46,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 38 [2021-11-23 17:20:46,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2021-11-23 17:20:46,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-11-23 17:20:46,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:20:47,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:20:47,025 INFO L354 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2021-11-23 17:20:47,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 59 [2021-11-23 17:20:47,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:20:47,050 INFO L354 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2021-11-23 17:20:47,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 36 [2021-11-23 17:20:47,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:20:47,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 41 [2021-11-23 17:20:47,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-11-23 17:20:48,825 INFO L354 Elim1Store]: treesize reduction 85, result has 11.5 percent of original size [2021-11-23 17:20:48,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 132 treesize of output 74 [2021-11-23 17:20:48,851 INFO L354 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2021-11-23 17:20:48,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 25 [2021-11-23 17:20:48,864 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:20:48,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:20:49,092 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:20:49,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 65 [2021-11-23 17:20:49,100 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:20:49,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 56 [2021-11-23 17:20:49,322 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_274| (_ BitVec 32)) (v_arrayElimArr_272 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_271 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (select v_arrayElimArr_271 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_272 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (let ((.cse0 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_274| v_arrayElimArr_272)) (.cse3 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_274| v_arrayElimArr_271))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse2 (select (select .cse0 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (and (= (select (select .cse0 .cse1) .cse2) (_ bv0 32)) (= (select (select .cse3 .cse1) .cse2) (_ bv0 32))))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_274|))))))) is different from false [2021-11-23 17:20:50,035 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:20:50,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 105 treesize of output 103 [2021-11-23 17:20:50,048 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:20:50,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 96 treesize of output 94 [2021-11-23 17:20:50,857 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_274| (_ BitVec 32)) (v_arrayElimArr_274 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3672 (_ BitVec 1)) (v_arrayElimArr_272 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_273 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_271 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select v_arrayElimArr_271 (_ bv0 32)))) (or (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_3672) (_ bv1 1)))) (let ((.cse3 (store (store |c_#memory_$Pointer$.offset| .cse4 v_arrayElimArr_273) |v_ULTIMATE.start_main_~l~0#1.base_274| v_arrayElimArr_272)) (.cse0 (store (store |c_#memory_$Pointer$.base| .cse4 v_arrayElimArr_274) |v_ULTIMATE.start_main_~l~0#1.base_274| v_arrayElimArr_271))) (let ((.cse1 (select (select .cse0 .cse4) (_ bv0 32))) (.cse2 (select (select .cse3 .cse4) (_ bv0 32)))) (and (= (select (select .cse0 .cse1) .cse2) (_ bv0 32)) (= (select (select .cse3 .cse1) .cse2) (_ bv0 32))))) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_274 (_ bv0 32)))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| .cse4 v_ArrVal_3672) |v_ULTIMATE.start_main_~l~0#1.base_274|))))))) (not (= (_ bv0 1) (select |c_#valid| .cse4))) (not (= (select v_arrayElimArr_272 (_ bv0 32)) (_ bv0 32))) (not (= (select v_arrayElimArr_273 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|))))) is different from false [2021-11-23 17:20:53,405 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:20:53,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 142 [2021-11-23 17:20:53,422 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:20:53,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 129 treesize of output 100 [2021-11-23 17:20:53,436 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:20:53,436 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:20:53,437 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:20:53,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:20:53,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 40 [2021-11-23 17:20:53,449 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:20:53,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 79 [2021-11-23 17:20:53,469 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-23 17:20:53,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 199 treesize of output 191 [2021-11-23 17:20:53,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 265 treesize of output 229 [2021-11-23 17:20:53,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 229 treesize of output 201 [2021-11-23 17:20:53,588 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 16 not checked. [2021-11-23 17:20:53,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [890830403] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:20:53,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799415829] [2021-11-23 17:20:53,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:20:53,589 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:20:53,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:20:53,590 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:20:53,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2021-11-23 17:20:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:20:53,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-23 17:20:53,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:20:53,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:20:53,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:20:53,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:20:53,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:20:53,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:20:53,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:20:53,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-11-23 17:20:54,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:20:54,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-23 17:20:54,037 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:20:54,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 28 treesize of output 39 [2021-11-23 17:20:54,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:20:54,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:20:54,211 INFO L354 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2021-11-23 17:20:54,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 73 treesize of output 69 [2021-11-23 17:20:54,268 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-11-23 17:20:54,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 39 [2021-11-23 17:20:54,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:20:54,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 60 [2021-11-23 17:20:55,294 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-23 17:20:55,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 169 treesize of output 66 [2021-11-23 17:20:55,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2021-11-23 17:20:55,314 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:20:55,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:20:55,556 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:20:55,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 65 [2021-11-23 17:20:55,566 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:20:55,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 56 [2021-11-23 17:20:55,812 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.offset_281| (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.base_281| (_ BitVec 32)) (v_arrayElimArr_281 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_282 (Array (_ BitVec 32) (_ BitVec 32)))) (or (let ((.cse3 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_281| v_arrayElimArr_282)) (.cse0 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_281| v_arrayElimArr_281))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (and (= (select (select .cse0 .cse1) .cse2) (_ bv0 32)) (= (select (select .cse3 .cse1) .cse2) (_ bv0 32))))) (not (= (select v_arrayElimArr_281 |v_ULTIMATE.start_main_~l~0#1.offset_281|) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_282 |v_ULTIMATE.start_main_~l~0#1.offset_281|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_281|)))))) is different from false [2021-11-23 17:20:56,663 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:20:56,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 119 [2021-11-23 17:20:56,676 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:20:56,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 104 [2021-11-23 17:20:59,435 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.offset_281| (_ BitVec 32)) (v_ArrVal_3748 (_ BitVec 1)) (|v_ULTIMATE.start_main_~l~0#1.base_281| (_ BitVec 32)) (v_arrayElimArr_283 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_284 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_281 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_282 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select v_arrayElimArr_281 |v_ULTIMATE.start_main_~l~0#1.offset_281|)) (.cse5 (select v_arrayElimArr_282 |v_ULTIMATE.start_main_~l~0#1.offset_281|))) (or (let ((.cse0 (store (store |c_#memory_$Pointer$.offset| .cse4 v_arrayElimArr_283) |v_ULTIMATE.start_main_~l~0#1.base_281| v_arrayElimArr_282)) (.cse3 (store (store |c_#memory_$Pointer$.base| .cse4 v_arrayElimArr_284) |v_ULTIMATE.start_main_~l~0#1.base_281| v_arrayElimArr_281))) (let ((.cse1 (select (select .cse3 .cse4) .cse5)) (.cse2 (select (select .cse0 .cse4) .cse5))) (and (= (select (select .cse0 .cse1) .cse2) (_ bv0 32)) (= (select (select .cse3 .cse1) .cse2) (_ bv0 32))))) (not (= (_ bv0 1) (bvneg (select (store |c_#valid| .cse4 v_ArrVal_3748) |v_ULTIMATE.start_main_~l~0#1.base_281|)))) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_283 .cse5))) (not (= (_ bv0 1) (bvneg (select |c_#valid| .cse4)))) (not (= (select v_arrayElimArr_284 .cse5) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg v_ArrVal_3748))) (_ bv1 1))))))) is different from false [2021-11-23 17:21:07,438 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:21:07,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 215 treesize of output 172 [2021-11-23 17:21:07,457 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:21:07,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 155 treesize of output 112 [2021-11-23 17:21:07,463 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:21:07,464 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:21:07,465 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:21:07,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:21:07,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 44 [2021-11-23 17:21:07,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 92 treesize of output 80 [2021-11-23 17:21:07,482 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:21:07,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 79 [2021-11-23 17:21:07,503 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:21:07,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 107 treesize of output 97 [2021-11-23 17:21:07,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 69 treesize of output 63 [2021-11-23 17:21:07,528 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:21:07,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 79 [2021-11-23 17:21:07,556 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 17:21:07,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 139 treesize of output 133 [2021-11-23 17:21:07,712 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 16 not checked. [2021-11-23 17:21:07,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799415829] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:21:07,712 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 17:21:07,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 10, 10] total 26 [2021-11-23 17:21:07,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801977822] [2021-11-23 17:21:07,713 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 17:21:07,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-23 17:21:07,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:21:07,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-23 17:21:07,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=335, Unknown=6, NotChecked=246, Total=650 [2021-11-23 17:21:07,714 INFO L87 Difference]: Start difference. First operand 380 states and 574 transitions. Second operand has 26 states, 26 states have (on average 5.269230769230769) internal successors, (137), 26 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:21:09,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:21:09,966 INFO L93 Difference]: Finished difference Result 424 states and 625 transitions. [2021-11-23 17:21:09,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 17:21:09,967 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.269230769230769) internal successors, (137), 26 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-11-23 17:21:09,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:21:09,970 INFO L225 Difference]: With dead ends: 424 [2021-11-23 17:21:09,970 INFO L226 Difference]: Without dead ends: 380 [2021-11-23 17:21:09,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 249 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 6 IntricatePredicates, 1 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=84, Invalid=440, Unknown=6, NotChecked=282, Total=812 [2021-11-23 17:21:09,971 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 38 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 308 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-23 17:21:09,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 454 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 308 Unchecked, 1.4s Time] [2021-11-23 17:21:09,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2021-11-23 17:21:10,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 368. [2021-11-23 17:21:10,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 367 states have (on average 1.5204359673024523) internal successors, (558), 367 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:21:10,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 558 transitions. [2021-11-23 17:21:10,120 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 558 transitions. Word has length 47 [2021-11-23 17:21:10,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:21:10,121 INFO L470 AbstractCegarLoop]: Abstraction has 368 states and 558 transitions. [2021-11-23 17:21:10,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.269230769230769) internal successors, (137), 26 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:21:10,122 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 558 transitions. [2021-11-23 17:21:10,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 17:21:10,123 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:21:10,123 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:21:10,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (63)] Forceful destruction successful, exit code 0 [2021-11-23 17:21:10,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (62)] Forceful destruction successful, exit code 0 [2021-11-23 17:21:10,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2021-11-23 17:21:10,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:21:10,731 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:21:10,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:21:10,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1590152501, now seen corresponding path program 2 times [2021-11-23 17:21:10,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:21:10,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648304626] [2021-11-23 17:21:10,732 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 17:21:10,732 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:21:10,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:21:10,733 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:21:10,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2021-11-23 17:21:11,137 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 17:21:11,138 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:21:11,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 63 conjunts are in the unsatisfiable core [2021-11-23 17:21:11,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:21:11,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:21:11,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:21:11,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:21:11,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:21:11,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:21:11,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 52 [2021-11-23 17:21:11,399 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:21:11,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 38 [2021-11-23 17:21:12,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:21:12,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 69 [2021-11-23 17:21:12,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:21:12,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:21:12,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:21:12,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 112 [2021-11-23 17:21:12,111 INFO L354 Elim1Store]: treesize reduction 8, result has 74.2 percent of original size [2021-11-23 17:21:12,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 43 [2021-11-23 17:21:12,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-23 17:21:15,689 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 17:21:15,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 211 treesize of output 90 [2021-11-23 17:21:15,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 10 [2021-11-23 17:21:16,063 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 17 proven. 46 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-23 17:21:16,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:21:16,955 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:21:16,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 89 [2021-11-23 17:21:16,968 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:21:16,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 83 [2021-11-23 17:21:18,099 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32))) (or (bvslt |ULTIMATE.start_main_~ev1~0#1| (_ bv0 32)) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_287| (_ BitVec 32)) (|ULTIMATE.start_main_~ev2~0#1| (_ BitVec 32)) (v_arrayElimArr_289 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_290 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3831 (_ BitVec 32))) (let ((.cse2 (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_287|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) |ULTIMATE.start_main_~ev2~0#1|) (_ bv0 32) v_ArrVal_3831))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_287| .cse2) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_287| v_arrayElimArr_289) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_287| v_arrayElimArr_290) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (= |ULTIMATE.start_main_~ev2~0#1| (_ bv3 32)) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv1 32))) (not (= (select v_arrayElimArr_290 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv1 32) (select .cse2 (_ bv4 32)))) (not (= (select .cse0 (bvadd (_ bv8 32) .cse1)) (_ bv3 32))) (not (= (select v_arrayElimArr_289 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_287|)))))))))) (bvsgt |ULTIMATE.start_main_~ev1~0#1| (_ bv3 32)))) is different from false [2021-11-23 17:21:22,581 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:21:22,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 169 treesize of output 153 [2021-11-23 17:21:22,587 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:21:22,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 123 [2021-11-23 17:21:22,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 165 treesize of output 139 [2021-11-23 17:21:22,610 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:21:22,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 99 treesize of output 89 [2021-11-23 17:21:22,615 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:21:22,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 65 [2021-11-23 17:21:22,994 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_287| (_ BitVec 32)) (|ULTIMATE.start_main_~ev2~0#1| (_ BitVec 32)) (v_ArrVal_3824 (_ BitVec 1)) (|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32)) (v_ArrVal_3821 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_1010 (_ BitVec 32)) (v_ArrVal_3831 (_ BitVec 32))) (let ((.cse2 (store |c_#memory_int| v_arrayElimCell_1010 v_ArrVal_3821))) (let ((.cse0 (store (store (store (select .cse2 |v_ULTIMATE.start_main_~l~0#1.base_287|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) |ULTIMATE.start_main_~ev2~0#1|) (_ bv0 32) v_ArrVal_3831))) (let ((.cse1 (select (store .cse2 |v_ULTIMATE.start_main_~l~0#1.base_287| .cse0) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (= |ULTIMATE.start_main_~ev2~0#1| (_ bv3 32)) (not (= (select .cse0 (_ bv4 32)) (_ bv1 32))) (not (= (select .cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_1010 v_ArrVal_3824) |v_ULTIMATE.start_main_~l~0#1.base_287|)))))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_1010)))))) (not (= (select .cse1 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv0 1) (bvadd (bvneg (bvneg v_ArrVal_3824)) (_ bv1 1))))))))) is different from false [2021-11-23 17:21:24,130 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-23 17:21:24,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 147 treesize of output 1 [2021-11-23 17:21:24,138 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 20 proven. 17 refuted. 0 times theorem prover too weak. 7 trivial. 26 not checked. [2021-11-23 17:21:24,138 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:21:24,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648304626] [2021-11-23 17:21:24,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648304626] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:21:24,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1735225862] [2021-11-23 17:21:24,139 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 17:21:24,139 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:21:24,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:21:24,140 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:21:24,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (66)] Waiting until timeout for monitored process [2021-11-23 17:21:24,666 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 17:21:24,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:21:24,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-23 17:21:24,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:21:24,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:21:24,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:21:24,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:21:24,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:21:24,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2021-11-23 17:21:24,910 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-23 17:21:24,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 23 treesize of output 30 [2021-11-23 17:21:24,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:21:25,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:21:25,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:21:25,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2021-11-23 17:21:25,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:21:25,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 30 [2021-11-23 17:21:25,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:21:25,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 57 [2021-11-23 17:21:25,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:21:25,384 INFO L354 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2021-11-23 17:21:25,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 34 [2021-11-23 17:21:25,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-11-23 17:21:27,549 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-23 17:21:27,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 57 [2021-11-23 17:21:27,568 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-23 17:21:27,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2021-11-23 17:21:27,812 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 44 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 17:21:27,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:21:28,271 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:21:28,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:21:28,280 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:21:28,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:21:28,408 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_292| (_ BitVec 32)) (v_arrayElimArr_296 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_295 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3904 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_292| v_ArrVal_3904) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_292| v_arrayElimArr_295) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_292| v_arrayElimArr_296) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_292|))) (not (= (_ bv3 32) (select .cse0 (bvadd (_ bv8 32) .cse1)))) (not (= (select v_arrayElimArr_295 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv1 32))) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_296 (_ bv0 32))))))) is different from false [2021-11-23 17:21:29,652 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:21:29,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 121 [2021-11-23 17:21:29,656 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:21:29,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 91 [2021-11-23 17:21:29,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 109 treesize of output 89 [2021-11-23 17:21:29,672 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:21:29,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 61 [2021-11-23 17:21:29,676 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:21:29,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-11-23 17:21:29,804 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3900 (_ BitVec 1)) (v_ArrVal_3896 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_292| (_ BitVec 32)) (v_arrayElimCell_1028 (_ BitVec 32)) (v_ArrVal_3904 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_1028 v_ArrVal_3896) |v_ULTIMATE.start_main_~l~0#1.base_292| v_ArrVal_3904) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (bvneg (bvneg (select |c_#valid| v_arrayElimCell_1028))) (_ bv0 1))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_1028 v_ArrVal_3900) |v_ULTIMATE.start_main_~l~0#1.base_292|))))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_3900) (_ bv1 1))))))) is different from false [2021-11-23 17:21:29,936 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3900 (_ BitVec 1)) (v_ArrVal_3896 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_292| (_ BitVec 32)) (v_arrayElimCell_1028 (_ BitVec 32)) (v_ArrVal_3904 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_1028 v_ArrVal_3896) |v_ULTIMATE.start_main_~l~0#1.base_292| v_ArrVal_3904) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_1028))))))))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_1028 v_ArrVal_3900) |v_ULTIMATE.start_main_~l~0#1.base_292|))))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_3900) (_ bv1 1))))))) is different from false [2021-11-23 17:21:30,224 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 8 trivial. 26 not checked. [2021-11-23 17:21:30,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1735225862] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:21:30,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81313099] [2021-11-23 17:21:30,225 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 17:21:30,225 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:21:30,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:21:30,226 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:21:30,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9710a477-4c95-4df8-b93b-8db469f452ae/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2021-11-23 17:21:30,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 17:21:30,510 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 17:21:30,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-23 17:21:30,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:21:30,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 17:21:30,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 17:21:30,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:21:30,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:21:30,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2021-11-23 17:21:30,721 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-23 17:21:30,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 28 treesize of output 39 [2021-11-23 17:21:30,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 17:21:31,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:21:31,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2021-11-23 17:21:31,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 17:21:31,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 64 [2021-11-23 17:21:31,207 INFO L354 Elim1Store]: treesize reduction 8, result has 74.2 percent of original size [2021-11-23 17:21:31,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 45 [2021-11-23 17:21:31,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-23 17:21:31,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2021-11-23 17:21:33,059 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 17:21:33,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 58 [2021-11-23 17:21:33,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 10 [2021-11-23 17:21:33,125 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 20 proven. 42 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 17:21:33,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:21:33,449 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:21:33,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 17:21:33,459 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:21:33,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 17:21:33,621 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_302 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_297| (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.offset_297| (_ BitVec 32)) (v_arrayElimArr_301 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3976 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_297| v_ArrVal_3976) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_297| v_arrayElimArr_301) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_297| v_arrayElimArr_302) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select v_arrayElimArr_301 |v_ULTIMATE.start_main_~l~0#1.offset_297|) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse0 (bvadd (_ bv4 32) .cse1)) (_ bv1 32))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_297|)))) (not (= (_ bv3 32) (select .cse0 (bvadd (_ bv8 32) .cse1)))) (not (= (select v_arrayElimArr_302 |v_ULTIMATE.start_main_~l~0#1.offset_297|) |c_ULTIMATE.start_main_~l~0#1.offset|))))) is different from false [2021-11-23 17:21:34,826 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:21:34,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 121 [2021-11-23 17:21:34,830 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:21:34,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 91 [2021-11-23 17:21:34,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 110 treesize of output 90 [2021-11-23 17:21:34,848 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:21:34,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 61 [2021-11-23 17:21:34,851 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 17:21:34,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-11-23 17:21:34,984 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_297| (_ BitVec 32)) (v_ArrVal_3973 (_ BitVec 1)) (v_ArrVal_3976 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_1044 (_ BitVec 32)) (v_ArrVal_3972 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| v_arrayElimCell_1044 v_ArrVal_3972) |v_ULTIMATE.start_main_~l~0#1.base_297| v_ArrVal_3976) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_1044)))))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_3973) (_ bv1 1)))) (not (= (_ bv3 32) (select .cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (bvneg (select (store |c_#valid| v_arrayElimCell_1044 v_ArrVal_3973) |v_ULTIMATE.start_main_~l~0#1.base_297|)))) (not (= (select .cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32)))))) is different from false [2021-11-23 17:21:35,426 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 20 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 26 not checked. [2021-11-23 17:21:35,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81313099] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:21:35,426 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 17:21:35,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 11, 12, 11, 11] total 42 [2021-11-23 17:21:35,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936809350] [2021-11-23 17:21:35,427 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 17:21:35,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-11-23 17:21:35,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:21:35,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-11-23 17:21:35,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=1062, Unknown=7, NotChecked=504, Total=1722 [2021-11-23 17:21:35,429 INFO L87 Difference]: Start difference. First operand 368 states and 558 transitions. Second operand has 42 states, 42 states have (on average 4.238095238095238) internal successors, (178), 42 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:21:37,145 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse24 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|))) (let ((.cse1 (select .cse24 |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse22 (select |c_#memory_int| .cse1)) (.cse23 (select |c_#memory_int| |c_ULTIMATE.start_main_~l~0#1.base|))) (let ((.cse17 (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~l~0#1.base|))) (.cse10 (select .cse24 (_ bv0 32))) (.cse8 (select .cse23 (_ bv4 32))) (.cse0 (select .cse22 (_ bv4 32))) (.cse21 (select .cse23 (_ bv8 32))) (.cse6 (select .cse22 (_ bv8 32))) (.cse14 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~l~0#1.base|))) (and (not (bvslt .cse0 (_ bv0 32))) (not (= .cse1 |c_ULTIMATE.start_main_~l~0#1.base|)) (exists ((v_arrayElimCell_997 (_ BitVec 1))) (let ((.cse2 (bvneg (bvneg v_arrayElimCell_997)))) (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) .cse2)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg .cse2)))))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_287| (_ BitVec 32)) (|ULTIMATE.start_main_~ev2~0#1| (_ BitVec 32)) (v_ArrVal_3824 (_ BitVec 1)) (|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32)) (v_ArrVal_3821 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_1010 (_ BitVec 32)) (v_ArrVal_3831 (_ BitVec 32))) (let ((.cse5 (store |c_#memory_int| v_arrayElimCell_1010 v_ArrVal_3821))) (let ((.cse3 (store (store (store (select .cse5 |v_ULTIMATE.start_main_~l~0#1.base_287|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) |ULTIMATE.start_main_~ev2~0#1|) (_ bv0 32) v_ArrVal_3831))) (let ((.cse4 (select (store .cse5 |v_ULTIMATE.start_main_~l~0#1.base_287| .cse3) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (= |ULTIMATE.start_main_~ev2~0#1| (_ bv3 32)) (not (= (select .cse3 (_ bv4 32)) (_ bv1 32))) (not (= (select .cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_1010 v_ArrVal_3824) |v_ULTIMATE.start_main_~l~0#1.base_287|)))))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_1010)))))) (not (= (select .cse4 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv0 1) (bvadd (bvneg (bvneg v_ArrVal_3824)) (_ bv1 1))))))))) (not (bvslt .cse6 (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_297| (_ BitVec 32)) (v_ArrVal_3973 (_ BitVec 1)) (v_ArrVal_3976 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_1044 (_ BitVec 32)) (v_ArrVal_3972 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (select (store (store |c_#memory_int| v_arrayElimCell_1044 v_ArrVal_3972) |v_ULTIMATE.start_main_~l~0#1.base_297| v_ArrVal_3976) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_1044)))))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_3973) (_ bv1 1)))) (not (= (_ bv3 32) (select .cse7 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (bvneg (select (store |c_#valid| v_arrayElimCell_1044 v_ArrVal_3973) |v_ULTIMATE.start_main_~l~0#1.base_297|)))) (not (= (select .cse7 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32)))))) (not (bvsgt |c_ULTIMATE.start_main_~ev2~0#1| (_ bv3 32))) (not (bvsgt .cse8 (_ bv3 32))) (let ((.cse9 (select |c_#memory_int| .cse10))) (or (not (= (_ bv3 32) (select .cse9 (_ bv8 32)))) (not (= (_ bv1 32) (select .cse9 (_ bv4 32)))))) (forall ((|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32))) (or (bvslt |ULTIMATE.start_main_~ev1~0#1| (_ bv0 32)) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_287| (_ BitVec 32)) (|ULTIMATE.start_main_~ev2~0#1| (_ BitVec 32)) (v_arrayElimArr_289 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_290 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3831 (_ BitVec 32))) (let ((.cse13 (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_287|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) |ULTIMATE.start_main_~ev2~0#1|) (_ bv0 32) v_ArrVal_3831))) (let ((.cse11 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_287| .cse13) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_287| v_arrayElimArr_289) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse12 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_287| v_arrayElimArr_290) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (= |ULTIMATE.start_main_~ev2~0#1| (_ bv3 32)) (not (= (select .cse11 (bvadd (_ bv4 32) .cse12)) (_ bv1 32))) (not (= (select v_arrayElimArr_290 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv1 32) (select .cse13 (_ bv4 32)))) (not (= (select .cse11 (bvadd (_ bv8 32) .cse12)) (_ bv3 32))) (not (= (select v_arrayElimArr_289 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_287|)))))))))) (bvsgt |ULTIMATE.start_main_~ev1~0#1| (_ bv3 32)))) (= |c_ULTIMATE.start_main_~l~0#1.offset| (_ bv0 32)) (= (select .cse14 |c_ULTIMATE.start_main_~l~0#1.offset|) (_ bv0 32)) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_292| (_ BitVec 32)) (v_arrayElimArr_296 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_295 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3904 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse15 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_292| v_ArrVal_3904) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_292| v_arrayElimArr_295) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse16 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_292| v_arrayElimArr_296) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_292|))) (not (= (_ bv3 32) (select .cse15 (bvadd (_ bv8 32) .cse16)))) (not (= (select v_arrayElimArr_295 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse15 (bvadd (_ bv4 32) .cse16)) (_ bv1 32))) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_296 (_ bv0 32))))))) (not (bvslt |c_ULTIMATE.start_main_~ev2~0#1| (_ bv0 32))) (not (bvsgt .cse0 (_ bv3 32))) (not (= .cse10 |c_ULTIMATE.start_main_~l~0#1.base|)) (not (bvslt .cse8 (_ bv0 32))) (not (bvslt |c_ULTIMATE.start_main_~ev1~0#1| (_ bv0 32))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg .cse17))) (forall ((v_arrayElimArr_302 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_297| (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.offset_297| (_ BitVec 32)) (v_arrayElimArr_301 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3976 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse18 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_297| v_ArrVal_3976) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_297| v_arrayElimArr_301) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse19 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_297| v_arrayElimArr_302) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select v_arrayElimArr_301 |v_ULTIMATE.start_main_~l~0#1.offset_297|) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse18 (bvadd (_ bv4 32) .cse19)) (_ bv1 32))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_297|)))) (not (= (_ bv3 32) (select .cse18 (bvadd (_ bv8 32) .cse19)))) (not (= (select v_arrayElimArr_302 |v_ULTIMATE.start_main_~l~0#1.offset_297|) |c_ULTIMATE.start_main_~l~0#1.offset|))))) (= (_ bv0 1) (bvadd .cse17 (_ bv1 1))) (forall ((v_ArrVal_3900 (_ BitVec 1)) (v_ArrVal_3896 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_292| (_ BitVec 32)) (v_arrayElimCell_1028 (_ BitVec 32)) (v_ArrVal_3904 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse20 (select (store (store |c_#memory_int| v_arrayElimCell_1028 v_ArrVal_3896) |v_ULTIMATE.start_main_~l~0#1.base_292| v_ArrVal_3904) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse20 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_1028))))))))) (not (= (select .cse20 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_1028 v_ArrVal_3900) |v_ULTIMATE.start_main_~l~0#1.base_292|))))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_3900) (_ bv1 1))))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| .cse10))))) (_ bv1 1))) (or (not (= .cse8 (_ bv1 32))) (not (= (_ bv3 32) .cse21))) (or (not (= .cse6 (_ bv3 32))) (not (= .cse0 (_ bv1 32)))) (not (bvsgt |c_ULTIMATE.start_main_~ev1~0#1| (_ bv3 32))) (not (bvslt .cse21 (_ bv0 32))) (not (bvsgt .cse21 (_ bv3 32))) (not (bvsgt .cse6 (_ bv3 32))) (= (select .cse14 (_ bv0 32)) (_ bv0 32))))))) is different from false [2021-11-23 17:21:37,381 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse24 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|))) (let ((.cse1 (select .cse24 |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse22 (select |c_#memory_int| .cse1)) (.cse23 (select |c_#memory_int| |c_ULTIMATE.start_main_~l~0#1.base|))) (let ((.cse17 (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~l~0#1.base|))) (.cse10 (select .cse24 (_ bv0 32))) (.cse8 (select .cse23 (_ bv4 32))) (.cse0 (select .cse22 (_ bv4 32))) (.cse21 (select .cse23 (_ bv8 32))) (.cse6 (select .cse22 (_ bv8 32))) (.cse14 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~l~0#1.base|))) (and (not (bvslt .cse0 (_ bv0 32))) (not (= .cse1 |c_ULTIMATE.start_main_~l~0#1.base|)) (exists ((v_arrayElimCell_997 (_ BitVec 1))) (let ((.cse2 (bvneg (bvneg v_arrayElimCell_997)))) (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) .cse2)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg .cse2)))))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_287| (_ BitVec 32)) (|ULTIMATE.start_main_~ev2~0#1| (_ BitVec 32)) (v_ArrVal_3824 (_ BitVec 1)) (|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32)) (v_ArrVal_3821 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_1010 (_ BitVec 32)) (v_ArrVal_3831 (_ BitVec 32))) (let ((.cse5 (store |c_#memory_int| v_arrayElimCell_1010 v_ArrVal_3821))) (let ((.cse3 (store (store (store (select .cse5 |v_ULTIMATE.start_main_~l~0#1.base_287|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) |ULTIMATE.start_main_~ev2~0#1|) (_ bv0 32) v_ArrVal_3831))) (let ((.cse4 (select (store .cse5 |v_ULTIMATE.start_main_~l~0#1.base_287| .cse3) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (= |ULTIMATE.start_main_~ev2~0#1| (_ bv3 32)) (not (= (select .cse3 (_ bv4 32)) (_ bv1 32))) (not (= (select .cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_1010 v_ArrVal_3824) |v_ULTIMATE.start_main_~l~0#1.base_287|)))))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_1010)))))) (not (= (select .cse4 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv0 1) (bvadd (bvneg (bvneg v_ArrVal_3824)) (_ bv1 1))))))))) (not (bvslt .cse6 (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_297| (_ BitVec 32)) (v_ArrVal_3973 (_ BitVec 1)) (v_ArrVal_3976 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_1044 (_ BitVec 32)) (v_ArrVal_3972 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (select (store (store |c_#memory_int| v_arrayElimCell_1044 v_ArrVal_3972) |v_ULTIMATE.start_main_~l~0#1.base_297| v_ArrVal_3976) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_1044)))))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_3973) (_ bv1 1)))) (not (= (_ bv3 32) (select .cse7 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (bvneg (select (store |c_#valid| v_arrayElimCell_1044 v_ArrVal_3973) |v_ULTIMATE.start_main_~l~0#1.base_297|)))) (not (= (select .cse7 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32)))))) (not (bvsgt .cse8 (_ bv3 32))) (let ((.cse9 (select |c_#memory_int| .cse10))) (or (not (= (_ bv3 32) (select .cse9 (_ bv8 32)))) (not (= (_ bv1 32) (select .cse9 (_ bv4 32)))))) (forall ((|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32))) (or (bvslt |ULTIMATE.start_main_~ev1~0#1| (_ bv0 32)) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_287| (_ BitVec 32)) (|ULTIMATE.start_main_~ev2~0#1| (_ BitVec 32)) (v_arrayElimArr_289 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_290 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3831 (_ BitVec 32))) (let ((.cse13 (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_287|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) |ULTIMATE.start_main_~ev2~0#1|) (_ bv0 32) v_ArrVal_3831))) (let ((.cse11 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_287| .cse13) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_287| v_arrayElimArr_289) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse12 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_287| v_arrayElimArr_290) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (= |ULTIMATE.start_main_~ev2~0#1| (_ bv3 32)) (not (= (select .cse11 (bvadd (_ bv4 32) .cse12)) (_ bv1 32))) (not (= (select v_arrayElimArr_290 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv1 32) (select .cse13 (_ bv4 32)))) (not (= (select .cse11 (bvadd (_ bv8 32) .cse12)) (_ bv3 32))) (not (= (select v_arrayElimArr_289 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_287|)))))))))) (bvsgt |ULTIMATE.start_main_~ev1~0#1| (_ bv3 32)))) (= |c_ULTIMATE.start_main_~l~0#1.offset| (_ bv0 32)) (= (select .cse14 |c_ULTIMATE.start_main_~l~0#1.offset|) (_ bv0 32)) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_292| (_ BitVec 32)) (v_arrayElimArr_296 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_295 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3904 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse15 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_292| v_ArrVal_3904) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_292| v_arrayElimArr_295) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse16 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_292| v_arrayElimArr_296) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_292|))) (not (= (_ bv3 32) (select .cse15 (bvadd (_ bv8 32) .cse16)))) (not (= (select v_arrayElimArr_295 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse15 (bvadd (_ bv4 32) .cse16)) (_ bv1 32))) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_296 (_ bv0 32))))))) (not (bvsgt .cse0 (_ bv3 32))) (not (= .cse10 |c_ULTIMATE.start_main_~l~0#1.base|)) (not (bvslt .cse8 (_ bv0 32))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg .cse17))) (forall ((v_arrayElimArr_302 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_297| (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.offset_297| (_ BitVec 32)) (v_arrayElimArr_301 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3976 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse18 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_297| v_ArrVal_3976) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_297| v_arrayElimArr_301) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse19 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_297| v_arrayElimArr_302) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select v_arrayElimArr_301 |v_ULTIMATE.start_main_~l~0#1.offset_297|) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse18 (bvadd (_ bv4 32) .cse19)) (_ bv1 32))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_297|)))) (not (= (_ bv3 32) (select .cse18 (bvadd (_ bv8 32) .cse19)))) (not (= (select v_arrayElimArr_302 |v_ULTIMATE.start_main_~l~0#1.offset_297|) |c_ULTIMATE.start_main_~l~0#1.offset|))))) (= (_ bv0 1) (bvadd .cse17 (_ bv1 1))) (forall ((v_ArrVal_3900 (_ BitVec 1)) (v_ArrVal_3896 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_292| (_ BitVec 32)) (v_arrayElimCell_1028 (_ BitVec 32)) (v_ArrVal_3904 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse20 (select (store (store |c_#memory_int| v_arrayElimCell_1028 v_ArrVal_3896) |v_ULTIMATE.start_main_~l~0#1.base_292| v_ArrVal_3904) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse20 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_1028))))))))) (not (= (select .cse20 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_1028 v_ArrVal_3900) |v_ULTIMATE.start_main_~l~0#1.base_292|))))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_3900) (_ bv1 1))))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| .cse10))))) (_ bv1 1))) (or (not (= .cse8 (_ bv1 32))) (not (= (_ bv3 32) .cse21))) (or (not (= .cse6 (_ bv3 32))) (not (= .cse0 (_ bv1 32)))) (not (bvslt .cse21 (_ bv0 32))) (not (bvsgt .cse21 (_ bv3 32))) (not (bvsgt .cse6 (_ bv3 32))) (= (select .cse14 (_ bv0 32)) (_ bv0 32))))))) is different from false [2021-11-23 17:21:53,224 WARN L227 SmtUtils]: Spent 6.73s on a formula simplification. DAG size of input: 313 DAG size of output: 76 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 17:22:11,864 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse33 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|))) (let ((.cse19 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~l~0#1.base|)) (.cse12 (select .cse33 (_ bv0 32)))) (let ((.cse32 (select |c_#memory_$Pointer$.base| .cse12)) (.cse28 (select .cse19 (_ bv0 32)))) (let ((.cse13 (select .cse32 .cse28)) (.cse3 (select .cse33 |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse29 (select |c_#memory_int| .cse3)) (.cse31 (select |c_#memory_int| .cse13)) (.cse30 (select |c_#memory_int| |c_ULTIMATE.start_main_~l~0#1.base|))) (let ((.cse11 (select .cse32 (_ bv0 32))) (.cse23 (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~l~0#1.base|))) (.cse14 (select .cse30 (_ bv4 32))) (.cse1 (select .cse31 (_ bv8 32))) (.cse2 (select .cse29 (_ bv4 32))) (.cse0 (select .cse31 (_ bv4 32))) (.cse27 (select .cse30 (_ bv8 32))) (.cse8 (select .cse29 (_ bv8 32))) (.cse22 (select |c_#memory_$Pointer$.offset| .cse12))) (and (not (bvsgt .cse0 (_ bv3 32))) (not (bvslt .cse1 (_ bv0 32))) (not (bvslt .cse2 (_ bv0 32))) (not (= .cse3 |c_ULTIMATE.start_main_~l~0#1.base|)) (exists ((v_arrayElimCell_997 (_ BitVec 1))) (let ((.cse4 (bvneg (bvneg v_arrayElimCell_997)))) (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) .cse4)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg .cse4)))))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_287| (_ BitVec 32)) (|ULTIMATE.start_main_~ev2~0#1| (_ BitVec 32)) (v_ArrVal_3824 (_ BitVec 1)) (|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32)) (v_ArrVal_3821 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_1010 (_ BitVec 32)) (v_ArrVal_3831 (_ BitVec 32))) (let ((.cse7 (store |c_#memory_int| v_arrayElimCell_1010 v_ArrVal_3821))) (let ((.cse5 (store (store (store (select .cse7 |v_ULTIMATE.start_main_~l~0#1.base_287|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) |ULTIMATE.start_main_~ev2~0#1|) (_ bv0 32) v_ArrVal_3831))) (let ((.cse6 (select (store .cse7 |v_ULTIMATE.start_main_~l~0#1.base_287| .cse5) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (= |ULTIMATE.start_main_~ev2~0#1| (_ bv3 32)) (not (= (select .cse5 (_ bv4 32)) (_ bv1 32))) (not (= (select .cse6 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_1010 v_ArrVal_3824) |v_ULTIMATE.start_main_~l~0#1.base_287|)))))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_1010)))))) (not (= (select .cse6 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv0 1) (bvadd (bvneg (bvneg v_ArrVal_3824)) (_ bv1 1))))))))) (not (bvslt .cse8 (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_297| (_ BitVec 32)) (v_ArrVal_3973 (_ BitVec 1)) (v_ArrVal_3976 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_1044 (_ BitVec 32)) (v_ArrVal_3972 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse9 (select (store (store |c_#memory_int| v_arrayElimCell_1044 v_ArrVal_3972) |v_ULTIMATE.start_main_~l~0#1.base_297| v_ArrVal_3976) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_1044)))))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_3973) (_ bv1 1)))) (not (= (_ bv3 32) (select .cse9 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (bvneg (select (store |c_#valid| v_arrayElimCell_1044 v_ArrVal_3973) |v_ULTIMATE.start_main_~l~0#1.base_297|)))) (not (= (select .cse9 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32)))))) (let ((.cse10 (select |c_#memory_int| .cse11))) (or (not (= (select .cse10 (_ bv8 32)) (_ bv3 32))) (not (= (select .cse10 (_ bv4 32)) (_ bv1 32))))) (not (= .cse11 |c_ULTIMATE.start_main_~l~0#1.base|)) (not (bvsgt |c_ULTIMATE.start_main_~ev2~0#1| (_ bv3 32))) (not (= .cse12 .cse11)) (not (bvsgt .cse1 (_ bv3 32))) (not (= .cse12 .cse13)) (not (bvsgt .cse14 (_ bv3 32))) (let ((.cse15 (select |c_#memory_int| .cse12))) (or (not (= (_ bv3 32) (select .cse15 (_ bv8 32)))) (not (= (_ bv1 32) (select .cse15 (_ bv4 32)))))) (forall ((|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32))) (or (bvslt |ULTIMATE.start_main_~ev1~0#1| (_ bv0 32)) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_287| (_ BitVec 32)) (|ULTIMATE.start_main_~ev2~0#1| (_ BitVec 32)) (v_arrayElimArr_289 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_290 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3831 (_ BitVec 32))) (let ((.cse18 (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_287|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) |ULTIMATE.start_main_~ev2~0#1|) (_ bv0 32) v_ArrVal_3831))) (let ((.cse16 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_287| .cse18) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_287| v_arrayElimArr_289) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse17 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_287| v_arrayElimArr_290) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (= |ULTIMATE.start_main_~ev2~0#1| (_ bv3 32)) (not (= (select .cse16 (bvadd (_ bv4 32) .cse17)) (_ bv1 32))) (not (= (select v_arrayElimArr_290 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv1 32) (select .cse18 (_ bv4 32)))) (not (= (select .cse16 (bvadd (_ bv8 32) .cse17)) (_ bv3 32))) (not (= (select v_arrayElimArr_289 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_287|)))))))))) (bvsgt |ULTIMATE.start_main_~ev1~0#1| (_ bv3 32)))) (= |c_ULTIMATE.start_main_~l~0#1.offset| (_ bv0 32)) (= (select .cse19 |c_ULTIMATE.start_main_~l~0#1.offset|) (_ bv0 32)) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_292| (_ BitVec 32)) (v_arrayElimArr_296 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_295 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3904 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse20 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_292| v_ArrVal_3904) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_292| v_arrayElimArr_295) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse21 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_292| v_arrayElimArr_296) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_292|))) (not (= (_ bv3 32) (select .cse20 (bvadd (_ bv8 32) .cse21)))) (not (= (select v_arrayElimArr_295 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse20 (bvadd (_ bv4 32) .cse21)) (_ bv1 32))) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_296 (_ bv0 32))))))) (not (bvslt |c_ULTIMATE.start_main_~ev2~0#1| (_ bv0 32))) (not (bvsgt .cse2 (_ bv3 32))) (= (select .cse22 (_ bv0 32)) (_ bv0 32)) (not (= .cse12 |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= .cse13 |c_ULTIMATE.start_main_~l~0#1.base|)) (not (bvslt .cse14 (_ bv0 32))) (not (bvslt |c_ULTIMATE.start_main_~ev1~0#1| (_ bv0 32))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg .cse23))) (forall ((v_arrayElimArr_302 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_297| (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.offset_297| (_ BitVec 32)) (v_arrayElimArr_301 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3976 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse24 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_297| v_ArrVal_3976) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_297| v_arrayElimArr_301) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse25 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_297| v_arrayElimArr_302) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select v_arrayElimArr_301 |v_ULTIMATE.start_main_~l~0#1.offset_297|) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse24 (bvadd (_ bv4 32) .cse25)) (_ bv1 32))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_297|)))) (not (= (_ bv3 32) (select .cse24 (bvadd (_ bv8 32) .cse25)))) (not (= (select v_arrayElimArr_302 |v_ULTIMATE.start_main_~l~0#1.offset_297|) |c_ULTIMATE.start_main_~l~0#1.offset|))))) (= (_ bv0 1) (bvadd .cse23 (_ bv1 1))) (forall ((v_ArrVal_3900 (_ BitVec 1)) (v_ArrVal_3896 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_292| (_ BitVec 32)) (v_arrayElimCell_1028 (_ BitVec 32)) (v_ArrVal_3904 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse26 (select (store (store |c_#memory_int| v_arrayElimCell_1028 v_ArrVal_3896) |v_ULTIMATE.start_main_~l~0#1.base_292| v_ArrVal_3904) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse26 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_1028))))))))) (not (= (select .cse26 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_1028 v_ArrVal_3900) |v_ULTIMATE.start_main_~l~0#1.base_292|))))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_3900) (_ bv1 1))))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| .cse12))))) (_ bv1 1))) (or (not (= .cse14 (_ bv1 32))) (not (= (_ bv3 32) .cse27))) (or (not (= (_ bv3 32) .cse1)) (not (= .cse0 (_ bv1 32)))) (or (not (= .cse8 (_ bv3 32))) (not (= .cse2 (_ bv1 32)))) (not (bvslt .cse0 (_ bv0 32))) (not (bvsgt |c_ULTIMATE.start_main_~ev1~0#1| (_ bv3 32))) (not (bvslt .cse27 (_ bv0 32))) (not (bvsgt .cse27 (_ bv3 32))) (not (bvsgt .cse8 (_ bv3 32))) (= (select .cse22 .cse28) (_ bv0 32)) (= .cse28 (_ bv0 32))))))))) is different from false [2021-11-23 17:22:12,461 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse23 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|))) (let ((.cse1 (select .cse23 |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse21 (select |c_#memory_int| .cse1)) (.cse22 (select |c_#memory_int| |c_ULTIMATE.start_main_~l~0#1.base|))) (let ((.cse17 (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~l~0#1.base|))) (.cse10 (select .cse23 (_ bv0 32))) (.cse8 (select .cse22 (_ bv4 32))) (.cse0 (select .cse21 (_ bv4 32))) (.cse20 (select .cse22 (_ bv8 32))) (.cse6 (select .cse21 (_ bv8 32))) (.cse14 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~l~0#1.base|))) (and (not (bvslt .cse0 (_ bv0 32))) (not (= .cse1 |c_ULTIMATE.start_main_~l~0#1.base|)) (exists ((v_arrayElimCell_997 (_ BitVec 1))) (let ((.cse2 (bvneg (bvneg v_arrayElimCell_997)))) (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) .cse2)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg .cse2)))))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_287| (_ BitVec 32)) (|ULTIMATE.start_main_~ev2~0#1| (_ BitVec 32)) (v_ArrVal_3824 (_ BitVec 1)) (|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32)) (v_ArrVal_3821 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_1010 (_ BitVec 32)) (v_ArrVal_3831 (_ BitVec 32))) (let ((.cse5 (store |c_#memory_int| v_arrayElimCell_1010 v_ArrVal_3821))) (let ((.cse3 (store (store (store (select .cse5 |v_ULTIMATE.start_main_~l~0#1.base_287|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) |ULTIMATE.start_main_~ev2~0#1|) (_ bv0 32) v_ArrVal_3831))) (let ((.cse4 (select (store .cse5 |v_ULTIMATE.start_main_~l~0#1.base_287| .cse3) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (= |ULTIMATE.start_main_~ev2~0#1| (_ bv3 32)) (not (= (select .cse3 (_ bv4 32)) (_ bv1 32))) (not (= (select .cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_1010 v_ArrVal_3824) |v_ULTIMATE.start_main_~l~0#1.base_287|)))))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_1010)))))) (not (= (select .cse4 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv0 1) (bvadd (bvneg (bvneg v_ArrVal_3824)) (_ bv1 1))))))))) (not (bvslt .cse6 (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_297| (_ BitVec 32)) (v_ArrVal_3973 (_ BitVec 1)) (v_ArrVal_3976 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_1044 (_ BitVec 32)) (v_ArrVal_3972 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (select (store (store |c_#memory_int| v_arrayElimCell_1044 v_ArrVal_3972) |v_ULTIMATE.start_main_~l~0#1.base_297| v_ArrVal_3976) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_1044)))))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_3973) (_ bv1 1)))) (not (= (_ bv3 32) (select .cse7 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (bvneg (select (store |c_#valid| v_arrayElimCell_1044 v_ArrVal_3973) |v_ULTIMATE.start_main_~l~0#1.base_297|)))) (not (= (select .cse7 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32)))))) (not (bvsgt .cse8 (_ bv3 32))) (let ((.cse9 (select |c_#memory_int| .cse10))) (or (not (= (_ bv3 32) (select .cse9 (_ bv8 32)))) (not (= (_ bv1 32) (select .cse9 (_ bv4 32)))))) (forall ((|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32))) (or (bvslt |ULTIMATE.start_main_~ev1~0#1| (_ bv0 32)) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_287| (_ BitVec 32)) (|ULTIMATE.start_main_~ev2~0#1| (_ BitVec 32)) (v_arrayElimArr_289 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_290 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3831 (_ BitVec 32))) (let ((.cse13 (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_287|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) |ULTIMATE.start_main_~ev2~0#1|) (_ bv0 32) v_ArrVal_3831))) (let ((.cse11 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_287| .cse13) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_287| v_arrayElimArr_289) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse12 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_287| v_arrayElimArr_290) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (= |ULTIMATE.start_main_~ev2~0#1| (_ bv3 32)) (not (= (select .cse11 (bvadd (_ bv4 32) .cse12)) (_ bv1 32))) (not (= (select v_arrayElimArr_290 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv1 32) (select .cse13 (_ bv4 32)))) (not (= (select .cse11 (bvadd (_ bv8 32) .cse12)) (_ bv3 32))) (not (= (select v_arrayElimArr_289 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_287|)))))))))) (bvsgt |ULTIMATE.start_main_~ev1~0#1| (_ bv3 32)))) (= |c_ULTIMATE.start_main_~l~0#1.offset| (_ bv0 32)) (= (select .cse14 |c_ULTIMATE.start_main_~l~0#1.offset|) (_ bv0 32)) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_292| (_ BitVec 32)) (v_arrayElimArr_296 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_295 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3904 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse15 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_292| v_ArrVal_3904) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_292| v_arrayElimArr_295) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse16 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_292| v_arrayElimArr_296) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_292|))) (not (= (_ bv3 32) (select .cse15 (bvadd (_ bv8 32) .cse16)))) (not (= (select v_arrayElimArr_295 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse15 (bvadd (_ bv4 32) .cse16)) (_ bv1 32))) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_296 (_ bv0 32))))))) (not (bvsgt .cse0 (_ bv3 32))) (not (= .cse10 |c_ULTIMATE.start_main_~l~0#1.base|)) (not (bvslt .cse8 (_ bv0 32))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg .cse17))) (forall ((v_arrayElimArr_302 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_297| (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.offset_297| (_ BitVec 32)) (v_arrayElimArr_301 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3976 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse18 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_297| v_ArrVal_3976) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_297| v_arrayElimArr_301) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse19 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_297| v_arrayElimArr_302) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select v_arrayElimArr_301 |v_ULTIMATE.start_main_~l~0#1.offset_297|) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse18 (bvadd (_ bv4 32) .cse19)) (_ bv1 32))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_297|)))) (not (= (_ bv3 32) (select .cse18 (bvadd (_ bv8 32) .cse19)))) (not (= (select v_arrayElimArr_302 |v_ULTIMATE.start_main_~l~0#1.offset_297|) |c_ULTIMATE.start_main_~l~0#1.offset|))))) (= (_ bv0 1) (bvadd .cse17 (_ bv1 1))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| .cse10))))) (_ bv1 1))) (or (not (= .cse8 (_ bv1 32))) (not (= (_ bv3 32) .cse20))) (or (not (= .cse6 (_ bv3 32))) (not (= .cse0 (_ bv1 32)))) (not (bvslt .cse20 (_ bv0 32))) (not (bvsgt .cse20 (_ bv3 32))) (not (bvsgt .cse6 (_ bv3 32))) (= (select .cse14 (_ bv0 32)) (_ bv0 32))))))) is different from false [2021-11-23 17:22:12,904 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse33 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|))) (let ((.cse19 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~l~0#1.base|)) (.cse12 (select .cse33 (_ bv0 32)))) (let ((.cse32 (select |c_#memory_$Pointer$.base| .cse12)) (.cse28 (select .cse19 (_ bv0 32)))) (let ((.cse13 (select .cse32 .cse28)) (.cse3 (select .cse33 |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse29 (select |c_#memory_int| .cse3)) (.cse31 (select |c_#memory_int| .cse13)) (.cse30 (select |c_#memory_int| |c_ULTIMATE.start_main_~l~0#1.base|))) (let ((.cse11 (select .cse32 (_ bv0 32))) (.cse23 (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~l~0#1.base|))) (.cse14 (select .cse30 (_ bv4 32))) (.cse1 (select .cse31 (_ bv8 32))) (.cse2 (select .cse29 (_ bv4 32))) (.cse0 (select .cse31 (_ bv4 32))) (.cse27 (select .cse30 (_ bv8 32))) (.cse8 (select .cse29 (_ bv8 32))) (.cse22 (select |c_#memory_$Pointer$.offset| .cse12))) (and (not (bvsgt .cse0 (_ bv3 32))) (not (bvslt .cse1 (_ bv0 32))) (not (bvslt .cse2 (_ bv0 32))) (not (= .cse3 |c_ULTIMATE.start_main_~l~0#1.base|)) (exists ((v_arrayElimCell_997 (_ BitVec 1))) (let ((.cse4 (bvneg (bvneg v_arrayElimCell_997)))) (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) .cse4)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg .cse4)))))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_287| (_ BitVec 32)) (|ULTIMATE.start_main_~ev2~0#1| (_ BitVec 32)) (v_ArrVal_3824 (_ BitVec 1)) (|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32)) (v_ArrVal_3821 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_1010 (_ BitVec 32)) (v_ArrVal_3831 (_ BitVec 32))) (let ((.cse7 (store |c_#memory_int| v_arrayElimCell_1010 v_ArrVal_3821))) (let ((.cse5 (store (store (store (select .cse7 |v_ULTIMATE.start_main_~l~0#1.base_287|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) |ULTIMATE.start_main_~ev2~0#1|) (_ bv0 32) v_ArrVal_3831))) (let ((.cse6 (select (store .cse7 |v_ULTIMATE.start_main_~l~0#1.base_287| .cse5) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (= |ULTIMATE.start_main_~ev2~0#1| (_ bv3 32)) (not (= (select .cse5 (_ bv4 32)) (_ bv1 32))) (not (= (select .cse6 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_1010 v_ArrVal_3824) |v_ULTIMATE.start_main_~l~0#1.base_287|)))))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_1010)))))) (not (= (select .cse6 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv0 1) (bvadd (bvneg (bvneg v_ArrVal_3824)) (_ bv1 1))))))))) (not (bvslt .cse8 (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_297| (_ BitVec 32)) (v_ArrVal_3973 (_ BitVec 1)) (v_ArrVal_3976 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_1044 (_ BitVec 32)) (v_ArrVal_3972 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse9 (select (store (store |c_#memory_int| v_arrayElimCell_1044 v_ArrVal_3972) |v_ULTIMATE.start_main_~l~0#1.base_297| v_ArrVal_3976) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_1044)))))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_3973) (_ bv1 1)))) (not (= (_ bv3 32) (select .cse9 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)))) (not (= (_ bv0 1) (bvneg (select (store |c_#valid| v_arrayElimCell_1044 v_ArrVal_3973) |v_ULTIMATE.start_main_~l~0#1.base_297|)))) (not (= (select .cse9 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32)))))) (let ((.cse10 (select |c_#memory_int| .cse11))) (or (not (= (select .cse10 (_ bv8 32)) (_ bv3 32))) (not (= (select .cse10 (_ bv4 32)) (_ bv1 32))))) (not (= .cse11 |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= .cse12 .cse11)) (not (bvsgt .cse1 (_ bv3 32))) (not (= .cse12 .cse13)) (not (bvsgt .cse14 (_ bv3 32))) (let ((.cse15 (select |c_#memory_int| .cse12))) (or (not (= (_ bv3 32) (select .cse15 (_ bv8 32)))) (not (= (_ bv1 32) (select .cse15 (_ bv4 32)))))) (forall ((|ULTIMATE.start_main_~ev1~0#1| (_ BitVec 32))) (or (bvslt |ULTIMATE.start_main_~ev1~0#1| (_ bv0 32)) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_287| (_ BitVec 32)) (|ULTIMATE.start_main_~ev2~0#1| (_ BitVec 32)) (v_arrayElimArr_289 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_290 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3831 (_ BitVec 32))) (let ((.cse18 (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_287|) (_ bv4 32) |ULTIMATE.start_main_~ev1~0#1|) (_ bv8 32) |ULTIMATE.start_main_~ev2~0#1|) (_ bv0 32) v_ArrVal_3831))) (let ((.cse16 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_287| .cse18) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_287| v_arrayElimArr_289) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse17 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_287| v_arrayElimArr_290) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (= |ULTIMATE.start_main_~ev2~0#1| (_ bv3 32)) (not (= (select .cse16 (bvadd (_ bv4 32) .cse17)) (_ bv1 32))) (not (= (select v_arrayElimArr_290 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (_ bv1 32) (select .cse18 (_ bv4 32)))) (not (= (select .cse16 (bvadd (_ bv8 32) .cse17)) (_ bv3 32))) (not (= (select v_arrayElimArr_289 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_287|)))))))))) (bvsgt |ULTIMATE.start_main_~ev1~0#1| (_ bv3 32)))) (= |c_ULTIMATE.start_main_~l~0#1.offset| (_ bv0 32)) (= (select .cse19 |c_ULTIMATE.start_main_~l~0#1.offset|) (_ bv0 32)) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_292| (_ BitVec 32)) (v_arrayElimArr_296 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_295 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3904 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse20 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_292| v_ArrVal_3904) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_292| v_arrayElimArr_295) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse21 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_292| v_arrayElimArr_296) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_292|))) (not (= (_ bv3 32) (select .cse20 (bvadd (_ bv8 32) .cse21)))) (not (= (select v_arrayElimArr_295 (_ bv0 32)) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse20 (bvadd (_ bv4 32) .cse21)) (_ bv1 32))) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_296 (_ bv0 32))))))) (not (bvsgt .cse2 (_ bv3 32))) (= (select .cse22 (_ bv0 32)) (_ bv0 32)) (not (= .cse12 |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= .cse13 |c_ULTIMATE.start_main_~l~0#1.base|)) (not (bvslt .cse14 (_ bv0 32))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg .cse23))) (forall ((v_arrayElimArr_302 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_297| (_ BitVec 32)) (|v_ULTIMATE.start_main_~l~0#1.offset_297| (_ BitVec 32)) (v_arrayElimArr_301 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3976 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse24 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_297| v_ArrVal_3976) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_297| v_arrayElimArr_301) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse25 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_297| v_arrayElimArr_302) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select v_arrayElimArr_301 |v_ULTIMATE.start_main_~l~0#1.offset_297|) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse24 (bvadd (_ bv4 32) .cse25)) (_ bv1 32))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_297|)))) (not (= (_ bv3 32) (select .cse24 (bvadd (_ bv8 32) .cse25)))) (not (= (select v_arrayElimArr_302 |v_ULTIMATE.start_main_~l~0#1.offset_297|) |c_ULTIMATE.start_main_~l~0#1.offset|))))) (= (_ bv0 1) (bvadd .cse23 (_ bv1 1))) (forall ((v_ArrVal_3900 (_ BitVec 1)) (v_ArrVal_3896 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~l~0#1.base_292| (_ BitVec 32)) (v_arrayElimCell_1028 (_ BitVec 32)) (v_ArrVal_3904 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse26 (select (store (store |c_#memory_int| v_arrayElimCell_1028 v_ArrVal_3896) |v_ULTIMATE.start_main_~l~0#1.base_292| v_ArrVal_3904) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select .cse26 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv3 32))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_arrayElimCell_1028))))))))) (not (= (select .cse26 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~l~0#1.offset|)) (_ bv1 32))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_arrayElimCell_1028 v_ArrVal_3900) |v_ULTIMATE.start_main_~l~0#1.base_292|))))) (not (= (_ bv0 1) (bvadd (bvneg v_ArrVal_3900) (_ bv1 1))))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| .cse12))))) (_ bv1 1))) (or (not (= .cse14 (_ bv1 32))) (not (= (_ bv3 32) .cse27))) (or (not (= (_ bv3 32) .cse1)) (not (= .cse0 (_ bv1 32)))) (or (not (= .cse8 (_ bv3 32))) (not (= .cse2 (_ bv1 32)))) (not (bvslt .cse0 (_ bv0 32))) (not (bvslt .cse27 (_ bv0 32))) (not (bvsgt .cse27 (_ bv3 32))) (not (bvsgt .cse8 (_ bv3 32))) (= (select .cse22 .cse28) (_ bv0 32)) (= .cse28 (_ bv0 32))))))))) is different from false