./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 eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/heap-data/calendar.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fe08ef78ee5c945bc38e9e915e26405aefe9ffb2d4911c91347e07e6a879dcd5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 14:45:00,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 14:45:00,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 14:45:00,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 14:45:00,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 14:45:00,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 14:45:00,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 14:45:00,727 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 14:45:00,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 14:45:00,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 14:45:00,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 14:45:00,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 14:45:00,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 14:45:00,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 14:45:00,738 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 14:45:00,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 14:45:00,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 14:45:00,743 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 14:45:00,744 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 14:45:00,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 14:45:00,751 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 14:45:00,751 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 14:45:00,752 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 14:45:00,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 14:45:00,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 14:45:00,761 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 14:45:00,761 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 14:45:00,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 14:45:00,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 14:45:00,763 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 14:45:00,764 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 14:45:00,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 14:45:00,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 14:45:00,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 14:45:00,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 14:45:00,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 14:45:00,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 14:45:00,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 14:45:00,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 14:45:00,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 14:45:00,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 14:45:00,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 14:45:00,772 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 14:45:00,801 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 14:45:00,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 14:45:00,802 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 14:45:00,802 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 14:45:00,803 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 14:45:00,803 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 14:45:00,804 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 14:45:00,804 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 14:45:00,804 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 14:45:00,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 14:45:00,805 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 14:45:00,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 14:45:00,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 14:45:00,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 14:45:00,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 14:45:00,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 14:45:00,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 14:45:00,807 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 14:45:00,807 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 14:45:00,808 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 14:45:00,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 14:45:00,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 14:45:00,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 14:45:00,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 14:45:00,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:45:00,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 14:45:00,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 14:45:00,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 14:45:00,810 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 14:45:00,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 14:45:00,810 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 14:45:00,810 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 14:45:00,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 14:45:00,811 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe08ef78ee5c945bc38e9e915e26405aefe9ffb2d4911c91347e07e6a879dcd5 [2022-07-19 14:45:01,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 14:45:01,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 14:45:01,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 14:45:01,024 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 14:45:01,024 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 14:45:01,025 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-data/calendar.i [2022-07-19 14:45:01,090 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b15887e0/321f481450e9461ca260ede33e9aaf74/FLAGaaf781bbf [2022-07-19 14:45:01,448 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 14:45:01,450 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-data/calendar.i [2022-07-19 14:45:01,458 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b15887e0/321f481450e9461ca260ede33e9aaf74/FLAGaaf781bbf [2022-07-19 14:45:01,818 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b15887e0/321f481450e9461ca260ede33e9aaf74 [2022-07-19 14:45:01,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 14:45:01,821 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 14:45:01,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 14:45:01,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 14:45:01,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 14:45:01,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:45:01" (1/1) ... [2022-07-19 14:45:01,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a18ac24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:45:01, skipping insertion in model container [2022-07-19 14:45:01,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:45:01" (1/1) ... [2022-07-19 14:45:01,837 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 14:45:01,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 14:45:02,128 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-data/calendar.i[23742,23755] [2022-07-19 14:45:02,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:45:02,143 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 14:45:02,188 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-data/calendar.i[23742,23755] [2022-07-19 14:45:02,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:45:02,211 INFO L208 MainTranslator]: Completed translation [2022-07-19 14:45:02,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:45:02 WrapperNode [2022-07-19 14:45:02,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 14:45:02,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 14:45:02,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 14:45:02,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 14:45:02,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:45:02" (1/1) ... [2022-07-19 14:45:02,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:45:02" (1/1) ... [2022-07-19 14:45:02,245 INFO L137 Inliner]: procedures = 121, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 71 [2022-07-19 14:45:02,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 14:45:02,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 14:45:02,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 14:45:02,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 14:45:02,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:45:02" (1/1) ... [2022-07-19 14:45:02,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:45:02" (1/1) ... [2022-07-19 14:45:02,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:45:02" (1/1) ... [2022-07-19 14:45:02,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:45:02" (1/1) ... [2022-07-19 14:45:02,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:45:02" (1/1) ... [2022-07-19 14:45:02,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:45:02" (1/1) ... [2022-07-19 14:45:02,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:45:02" (1/1) ... [2022-07-19 14:45:02,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 14:45:02,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 14:45:02,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 14:45:02,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 14:45:02,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:45:02" (1/1) ... [2022-07-19 14:45:02,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:45:02,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:45:02,298 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 14:45:02,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 14:45:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 14:45:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 14:45:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 14:45:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 14:45:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 14:45:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 14:45:02,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 14:45:02,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 14:45:02,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 14:45:02,471 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 14:45:02,473 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 14:45:02,698 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 14:45:02,703 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 14:45:02,703 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-19 14:45:02,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:45:02 BoogieIcfgContainer [2022-07-19 14:45:02,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 14:45:02,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 14:45:02,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 14:45:02,710 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 14:45:02,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 02:45:01" (1/3) ... [2022-07-19 14:45:02,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c082216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:45:02, skipping insertion in model container [2022-07-19 14:45:02,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:45:02" (2/3) ... [2022-07-19 14:45:02,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c082216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:45:02, skipping insertion in model container [2022-07-19 14:45:02,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:45:02" (3/3) ... [2022-07-19 14:45:02,713 INFO L111 eAbstractionObserver]: Analyzing ICFG calendar.i [2022-07-19 14:45:02,730 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 14:45:02,731 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 14:45:02,785 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 14:45:02,790 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@47cc186e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@63a927f [2022-07-19 14:45:02,791 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 14:45:02,794 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 states have internal predecessors, (30), 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) [2022-07-19 14:45:02,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-19 14:45:02,800 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:45:02,800 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:45:02,801 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:45:02,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:45:02,805 INFO L85 PathProgramCache]: Analyzing trace with hash 399551724, now seen corresponding path program 1 times [2022-07-19 14:45:02,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:45:02,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062595265] [2022-07-19 14:45:02,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:45:02,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:45:02,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:45:02,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:02,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:45:02,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062595265] [2022-07-19 14:45:02,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062595265] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:45:02,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:45:02,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 14:45:02,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37397887] [2022-07-19 14:45:02,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:45:02,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 14:45:02,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:45:02,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 14:45:02,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 14:45:02,975 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 states have internal predecessors, (30), 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) [2022-07-19 14:45:02,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:45:02,990 INFO L93 Difference]: Finished difference Result 35 states and 49 transitions. [2022-07-19 14:45:02,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 14:45:02,992 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 [2022-07-19 14:45:02,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:45:02,998 INFO L225 Difference]: With dead ends: 35 [2022-07-19 14:45:02,999 INFO L226 Difference]: Without dead ends: 18 [2022-07-19 14:45:03,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 14:45:03,005 INFO L413 NwaCegarLoop]: 27 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, 27 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 [2022-07-19 14:45:03,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 14:45:03,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-07-19 14:45:03,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-07-19 14:45:03,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 17 states have internal predecessors, (24), 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) [2022-07-19 14:45:03,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2022-07-19 14:45:03,032 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 24 transitions. Word has length 10 [2022-07-19 14:45:03,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:45:03,032 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 24 transitions. [2022-07-19 14:45:03,033 INFO L496 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) [2022-07-19 14:45:03,033 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2022-07-19 14:45:03,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-19 14:45:03,034 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:45:03,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:45:03,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 14:45:03,035 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:45:03,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:45:03,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1946762309, now seen corresponding path program 1 times [2022-07-19 14:45:03,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:45:03,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781496179] [2022-07-19 14:45:03,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:45:03,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:45:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:45:03,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:03,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:45:03,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781496179] [2022-07-19 14:45:03,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781496179] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:45:03,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:45:03,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 14:45:03,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500852874] [2022-07-19 14:45:03,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:45:03,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 14:45:03,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:45:03,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 14:45:03,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 14:45:03,172 INFO L87 Difference]: Start difference. First operand 18 states and 24 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-07-19 14:45:03,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:45:03,219 INFO L93 Difference]: Finished difference Result 35 states and 47 transitions. [2022-07-19 14:45:03,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 14:45:03,221 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2022-07-19 14:45:03,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:45:03,223 INFO L225 Difference]: With dead ends: 35 [2022-07-19 14:45:03,223 INFO L226 Difference]: Without dead ends: 23 [2022-07-19 14:45:03,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 14:45:03,227 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 5 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:45:03,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 59 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 14:45:03,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-07-19 14:45:03,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-07-19 14:45:03,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 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) [2022-07-19 14:45:03,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2022-07-19 14:45:03,236 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 12 [2022-07-19 14:45:03,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:45:03,238 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2022-07-19 14:45:03,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-07-19 14:45:03,240 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2022-07-19 14:45:03,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-19 14:45:03,241 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:45:03,241 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:45:03,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 14:45:03,242 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:45:03,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:45:03,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1070818203, now seen corresponding path program 1 times [2022-07-19 14:45:03,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:45:03,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258391898] [2022-07-19 14:45:03,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:45:03,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:45:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:45:03,467 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:03,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:45:03,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258391898] [2022-07-19 14:45:03,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258391898] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:45:03,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:45:03,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 14:45:03,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063178528] [2022-07-19 14:45:03,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:45:03,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 14:45:03,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:45:03,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 14:45:03,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-19 14:45:03,471 INFO L87 Difference]: Start difference. First operand 23 states and 31 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) [2022-07-19 14:45:03,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:45:03,912 INFO L93 Difference]: Finished difference Result 78 states and 105 transitions. [2022-07-19 14:45:03,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-19 14:45:03,913 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 [2022-07-19 14:45:03,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:45:03,914 INFO L225 Difference]: With dead ends: 78 [2022-07-19 14:45:03,914 INFO L226 Difference]: Without dead ends: 68 [2022-07-19 14:45:03,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=149, Invalid=357, Unknown=0, NotChecked=0, Total=506 [2022-07-19 14:45:03,916 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 132 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 14:45:03,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 114 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 14:45:03,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-07-19 14:45:03,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 27. [2022-07-19 14:45:03,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 26 states have internal predecessors, (36), 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) [2022-07-19 14:45:03,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2022-07-19 14:45:03,923 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 17 [2022-07-19 14:45:03,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:45:03,924 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2022-07-19 14:45:03,924 INFO L496 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) [2022-07-19 14:45:03,924 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2022-07-19 14:45:03,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-19 14:45:03,924 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:45:03,925 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:45:03,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 14:45:03,925 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:45:03,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:45:03,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1737463723, now seen corresponding path program 1 times [2022-07-19 14:45:03,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:45:03,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455176373] [2022-07-19 14:45:03,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:45:03,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:45:03,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:45:04,009 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 14:45:04,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:45:04,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455176373] [2022-07-19 14:45:04,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455176373] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:45:04,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:45:04,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 14:45:04,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992063804] [2022-07-19 14:45:04,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:45:04,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 14:45:04,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:45:04,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 14:45:04,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-19 14:45:04,012 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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) [2022-07-19 14:45:04,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:45:04,070 INFO L93 Difference]: Finished difference Result 50 states and 65 transitions. [2022-07-19 14:45:04,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 14:45:04,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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 19 [2022-07-19 14:45:04,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:45:04,074 INFO L225 Difference]: With dead ends: 50 [2022-07-19 14:45:04,074 INFO L226 Difference]: Without dead ends: 38 [2022-07-19 14:45:04,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-19 14:45:04,077 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 19 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:45:04,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 53 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 14:45:04,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-07-19 14:45:04,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 30. [2022-07-19 14:45:04,087 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) [2022-07-19 14:45:04,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2022-07-19 14:45:04,090 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 19 [2022-07-19 14:45:04,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:45:04,091 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2022-07-19 14:45:04,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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) [2022-07-19 14:45:04,092 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2022-07-19 14:45:04,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-19 14:45:04,092 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:45:04,092 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:45:04,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 14:45:04,093 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:45:04,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:45:04,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1737523305, now seen corresponding path program 1 times [2022-07-19 14:45:04,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:45:04,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399428405] [2022-07-19 14:45:04,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:45:04,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:45:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:45:04,129 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 14:45:04,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:45:04,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399428405] [2022-07-19 14:45:04,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399428405] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:45:04,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:45:04,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 14:45:04,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715298244] [2022-07-19 14:45:04,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:45:04,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 14:45:04,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:45:04,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 14:45:04,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 14:45:04,132 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2022-07-19 14:45:04,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:45:04,148 INFO L93 Difference]: Finished difference Result 34 states and 43 transitions. [2022-07-19 14:45:04,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 14:45:04,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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 19 [2022-07-19 14:45:04,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:45:04,149 INFO L225 Difference]: With dead ends: 34 [2022-07-19 14:45:04,149 INFO L226 Difference]: Without dead ends: 32 [2022-07-19 14:45:04,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 14:45:04,150 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:45:04,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 54 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 14:45:04,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-07-19 14:45:04,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-07-19 14:45:04,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 31 states have internal predecessors, (41), 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) [2022-07-19 14:45:04,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2022-07-19 14:45:04,163 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 41 transitions. Word has length 19 [2022-07-19 14:45:04,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:45:04,164 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 41 transitions. [2022-07-19 14:45:04,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2022-07-19 14:45:04,164 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions. [2022-07-19 14:45:04,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-19 14:45:04,165 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:45:04,165 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:45:04,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 14:45:04,167 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:45:04,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:45:04,168 INFO L85 PathProgramCache]: Analyzing trace with hash -782496211, now seen corresponding path program 1 times [2022-07-19 14:45:04,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:45:04,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607276490] [2022-07-19 14:45:04,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:45:04,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:45:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:45:04,266 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:04,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:45:04,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607276490] [2022-07-19 14:45:04,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607276490] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:45:04,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:45:04,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 14:45:04,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800663953] [2022-07-19 14:45:04,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:45:04,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 14:45:04,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:45:04,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 14:45:04,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-19 14:45:04,269 INFO L87 Difference]: Start difference. First operand 32 states and 41 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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) [2022-07-19 14:45:04,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:45:04,569 INFO L93 Difference]: Finished difference Result 76 states and 93 transitions. [2022-07-19 14:45:04,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 14:45:04,570 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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 19 [2022-07-19 14:45:04,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:45:04,571 INFO L225 Difference]: With dead ends: 76 [2022-07-19 14:45:04,571 INFO L226 Difference]: Without dead ends: 74 [2022-07-19 14:45:04,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2022-07-19 14:45:04,572 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 82 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 14:45:04,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 108 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 14:45:04,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-07-19 14:45:04,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 35. [2022-07-19 14:45:04,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 34 states have internal predecessors, (45), 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) [2022-07-19 14:45:04,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2022-07-19 14:45:04,578 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 19 [2022-07-19 14:45:04,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:45:04,578 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions. [2022-07-19 14:45:04,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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) [2022-07-19 14:45:04,578 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2022-07-19 14:45:04,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-19 14:45:04,579 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:45:04,579 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:45:04,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 14:45:04,580 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:45:04,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:45:04,580 INFO L85 PathProgramCache]: Analyzing trace with hash 830966801, now seen corresponding path program 1 times [2022-07-19 14:45:04,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:45:04,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867968115] [2022-07-19 14:45:04,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:45:04,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:45:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:45:04,652 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:04,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:45:04,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867968115] [2022-07-19 14:45:04,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867968115] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:45:04,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411501660] [2022-07-19 14:45:04,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:45:04,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:45:04,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:45:04,655 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:45:04,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 14:45:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:45:04,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 27 conjunts are in the unsatisfiable core [2022-07-19 14:45:04,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:45:04,791 INFO L390 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 [2022-07-19 14:45:04,796 INFO L390 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 [2022-07-19 14:45:04,893 INFO L390 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 [2022-07-19 14:45:04,897 INFO L390 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 [2022-07-19 14:45:04,902 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:04,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:45:05,004 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:05,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411501660] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:45:05,005 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:45:05,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2022-07-19 14:45:05,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842780392] [2022-07-19 14:45:05,005 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:45:05,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 14:45:05,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:45:05,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 14:45:05,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-19 14:45:05,006 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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) [2022-07-19 14:45:05,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:45:05,102 INFO L93 Difference]: Finished difference Result 68 states and 86 transitions. [2022-07-19 14:45:05,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 14:45:05,103 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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 25 [2022-07-19 14:45:05,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:45:05,104 INFO L225 Difference]: With dead ends: 68 [2022-07-19 14:45:05,104 INFO L226 Difference]: Without dead ends: 40 [2022-07-19 14:45:05,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-07-19 14:45:05,105 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 32 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 14:45:05,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 125 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 14:45:05,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-07-19 14:45:05,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-07-19 14:45:05,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 39 states have internal predecessors, (52), 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) [2022-07-19 14:45:05,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 52 transitions. [2022-07-19 14:45:05,110 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 52 transitions. Word has length 25 [2022-07-19 14:45:05,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:45:05,111 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 52 transitions. [2022-07-19 14:45:05,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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) [2022-07-19 14:45:05,113 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 52 transitions. [2022-07-19 14:45:05,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-19 14:45:05,114 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:45:05,114 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:45:05,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-19 14:45:05,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:45:05,324 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:45:05,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:45:05,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1524144039, now seen corresponding path program 2 times [2022-07-19 14:45:05,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:45:05,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242755586] [2022-07-19 14:45:05,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:45:05,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:45:05,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:45:05,639 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:05,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:45:05,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242755586] [2022-07-19 14:45:05,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242755586] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:45:05,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929428675] [2022-07-19 14:45:05,643 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 14:45:05,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:45:05,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:45:05,646 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:45:05,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 14:45:05,737 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-19 14:45:05,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 14:45:05,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 50 conjunts are in the unsatisfiable core [2022-07-19 14:45:05,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:45:05,773 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:05,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:05,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:05,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:05,782 INFO L390 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 21 treesize of output 26 [2022-07-19 14:45:05,877 INFO L390 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 [2022-07-19 14:45:05,884 INFO L390 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 [2022-07-19 14:45:05,894 INFO L356 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-07-19 14:45:05,894 INFO L390 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 15 treesize of output 15 [2022-07-19 14:45:05,900 INFO L390 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 [2022-07-19 14:45:06,077 INFO L390 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 [2022-07-19 14:45:06,082 INFO L390 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 [2022-07-19 14:45:06,166 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:06,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:45:06,363 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_192 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_10| Int)) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_10| v_ArrVal_192) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= 3 (select .cse0 (+ |c_ULTIMATE.start_main_~l~0#1.offset| 8)))) (not (= (select .cse0 (+ |c_ULTIMATE.start_main_~l~0#1.offset| 4)) 1)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_10|) 0))))) is different from false [2022-07-19 14:45:06,416 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-07-19 14:45:06,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929428675] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:45:06,416 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:45:06,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 9] total 23 [2022-07-19 14:45:06,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952830668] [2022-07-19 14:45:06,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:45:06,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-19 14:45:06,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:45:06,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-19 14:45:06,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=405, Unknown=1, NotChecked=40, Total=506 [2022-07-19 14:45:06,419 INFO L87 Difference]: Start difference. First operand 40 states and 52 transitions. Second operand has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 23 states have internal predecessors, (71), 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) [2022-07-19 14:45:09,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:45:09,150 INFO L93 Difference]: Finished difference Result 136 states and 165 transitions. [2022-07-19 14:45:09,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-07-19 14:45:09,151 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 23 states have internal predecessors, (71), 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 30 [2022-07-19 14:45:09,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:45:09,153 INFO L225 Difference]: With dead ends: 136 [2022-07-19 14:45:09,153 INFO L226 Difference]: Without dead ends: 121 [2022-07-19 14:45:09,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 53 SyntacticMatches, 4 SemanticMatches, 55 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 662 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=847, Invalid=2236, Unknown=1, NotChecked=108, Total=3192 [2022-07-19 14:45:09,155 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 568 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 72 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 14:45:09,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 302 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 221 Invalid, 0 Unknown, 72 Unchecked, 0.3s Time] [2022-07-19 14:45:09,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-07-19 14:45:09,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 48. [2022-07-19 14:45:09,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.297872340425532) internal successors, (61), 47 states have internal predecessors, (61), 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) [2022-07-19 14:45:09,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 61 transitions. [2022-07-19 14:45:09,162 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 61 transitions. Word has length 30 [2022-07-19 14:45:09,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:45:09,163 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 61 transitions. [2022-07-19 14:45:09,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 23 states have internal predecessors, (71), 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) [2022-07-19 14:45:09,163 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2022-07-19 14:45:09,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-19 14:45:09,164 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:45:09,164 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:45:09,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-19 14:45:09,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-07-19 14:45:09,386 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:45:09,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:45:09,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1895186671, now seen corresponding path program 1 times [2022-07-19 14:45:09,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:45:09,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124399606] [2022-07-19 14:45:09,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:45:09,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:45:09,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:45:09,596 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:09,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:45:09,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124399606] [2022-07-19 14:45:09,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124399606] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:45:09,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682281700] [2022-07-19 14:45:09,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:45:09,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:45:09,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:45:09,598 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:45:09,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-19 14:45:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:45:09,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 52 conjunts are in the unsatisfiable core [2022-07-19 14:45:09,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:45:09,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:09,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:09,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:09,714 INFO L390 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 21 treesize of output 26 [2022-07-19 14:45:09,727 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:09,780 INFO L390 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 [2022-07-19 14:45:09,807 INFO L390 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 [2022-07-19 14:45:09,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:09,814 INFO L390 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 [2022-07-19 14:45:09,822 INFO L356 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-07-19 14:45:09,822 INFO L390 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 15 treesize of output 15 [2022-07-19 14:45:09,968 INFO L390 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 [2022-07-19 14:45:09,972 INFO L390 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 [2022-07-19 14:45:10,063 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:10,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:45:10,133 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_272 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_13| Int)) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_13| v_ArrVal_272) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_13|) 0)) (not (= (select .cse0 (+ |c_ULTIMATE.start_main_~l~0#1.offset| 4)) 0)) (not (= 2 (select .cse0 (+ |c_ULTIMATE.start_main_~l~0#1.offset| 8))))))) is different from false [2022-07-19 14:45:10,168 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-07-19 14:45:10,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682281700] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:45:10,168 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:45:10,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 18 [2022-07-19 14:45:10,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647169614] [2022-07-19 14:45:10,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:45:10,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-19 14:45:10,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:45:10,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-19 14:45:10,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=227, Unknown=1, NotChecked=30, Total=306 [2022-07-19 14:45:10,171 INFO L87 Difference]: Start difference. First operand 48 states and 61 transitions. Second operand has 18 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 18 states have internal predecessors, (66), 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) [2022-07-19 14:45:11,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:45:11,039 INFO L93 Difference]: Finished difference Result 67 states and 82 transitions. [2022-07-19 14:45:11,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-19 14:45:11,040 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 18 states have internal predecessors, (66), 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 32 [2022-07-19 14:45:11,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:45:11,042 INFO L225 Difference]: With dead ends: 67 [2022-07-19 14:45:11,042 INFO L226 Difference]: Without dead ends: 65 [2022-07-19 14:45:11,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 61 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=343, Invalid=850, Unknown=1, NotChecked=66, Total=1260 [2022-07-19 14:45:11,044 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 122 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 43 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 14:45:11,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 259 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 159 Invalid, 0 Unknown, 43 Unchecked, 0.2s Time] [2022-07-19 14:45:11,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-07-19 14:45:11,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 51. [2022-07-19 14:45:11,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.3) internal successors, (65), 50 states have internal predecessors, (65), 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) [2022-07-19 14:45:11,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 65 transitions. [2022-07-19 14:45:11,057 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 65 transitions. Word has length 32 [2022-07-19 14:45:11,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:45:11,057 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 65 transitions. [2022-07-19 14:45:11,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 18 states have internal predecessors, (66), 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) [2022-07-19 14:45:11,058 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 65 transitions. [2022-07-19 14:45:11,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-19 14:45:11,060 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:45:11,060 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:45:11,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-19 14:45:11,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:45:11,284 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:45:11,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:45:11,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1135420755, now seen corresponding path program 3 times [2022-07-19 14:45:11,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:45:11,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903371470] [2022-07-19 14:45:11,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:45:11,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:45:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:45:11,462 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:11,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:45:11,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903371470] [2022-07-19 14:45:11,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903371470] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:45:11,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006535373] [2022-07-19 14:45:11,463 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-19 14:45:11,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:45:11,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:45:11,468 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:45:11,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-19 14:45:11,553 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-07-19 14:45:11,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 14:45:11,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 54 conjunts are in the unsatisfiable core [2022-07-19 14:45:11,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:45:11,576 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:11,580 INFO L390 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 [2022-07-19 14:45:11,584 INFO L390 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 [2022-07-19 14:45:11,639 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:11,643 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:11,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:11,648 INFO L390 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 [2022-07-19 14:45:11,656 INFO L356 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-07-19 14:45:11,656 INFO L390 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 15 treesize of output 15 [2022-07-19 14:45:11,659 INFO L390 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 [2022-07-19 14:45:11,937 INFO L356 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2022-07-19 14:45:11,937 INFO L390 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 [2022-07-19 14:45:11,945 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-07-19 14:45:11,945 INFO L390 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 [2022-07-19 14:45:11,950 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:11,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:45:12,015 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:12,015 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 13 treesize of output 17 [2022-07-19 14:45:12,022 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:12,023 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 13 treesize of output 17 [2022-07-19 14:45:12,045 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_359 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_17| Int) (v_ArrVal_357 (Array Int Int))) (or (and (= (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_17| (store v_ArrVal_359 0 |c_ULTIMATE.start_main_~l~0#1.base|)) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|) 0) (= (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_17| (store v_ArrVal_357 0 |c_ULTIMATE.start_main_~l~0#1.offset|)) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|) 0)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_17|) 0)))) is different from false [2022-07-19 14:45:12,052 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:12,052 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 13 treesize of output 17 [2022-07-19 14:45:12,059 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:12,059 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 13 treesize of output 17 [2022-07-19 14:45:12,083 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:12,084 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 13 treesize of output 17 [2022-07-19 14:45:12,090 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:12,091 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 13 treesize of output 17 [2022-07-19 14:45:12,116 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:12,117 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 13 treesize of output 17 [2022-07-19 14:45:12,123 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:12,124 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 13 treesize of output 17 [2022-07-19 14:45:12,146 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:12,146 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 13 treesize of output 17 [2022-07-19 14:45:12,152 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:12,153 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 13 treesize of output 17 [2022-07-19 14:45:12,181 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:12,182 INFO L390 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 21 treesize of output 22 [2022-07-19 14:45:12,186 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:12,186 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 13 treesize of output 17 [2022-07-19 14:45:12,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:12,191 INFO L390 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 16 treesize of output 8 [2022-07-19 14:45:12,193 INFO L390 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 [2022-07-19 14:45:12,198 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:12,199 INFO L390 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 21 treesize of output 22 [2022-07-19 14:45:12,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:12,201 INFO L390 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 16 treesize of output 8 [2022-07-19 14:45:12,214 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2022-07-19 14:45:12,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006535373] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:45:12,215 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:45:12,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 16 [2022-07-19 14:45:12,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955012518] [2022-07-19 14:45:12,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:45:12,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-19 14:45:12,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:45:12,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-19 14:45:12,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=173, Unknown=1, NotChecked=26, Total=240 [2022-07-19 14:45:12,217 INFO L87 Difference]: Start difference. First operand 51 states and 65 transitions. Second operand has 16 states, 16 states have (on average 4.6875) internal successors, (75), 16 states have internal predecessors, (75), 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) [2022-07-19 14:45:12,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:45:12,403 INFO L93 Difference]: Finished difference Result 102 states and 127 transitions. [2022-07-19 14:45:12,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 14:45:12,403 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.6875) internal successors, (75), 16 states have internal predecessors, (75), 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 38 [2022-07-19 14:45:12,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:45:12,404 INFO L225 Difference]: With dead ends: 102 [2022-07-19 14:45:12,404 INFO L226 Difference]: Without dead ends: 78 [2022-07-19 14:45:12,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=249, Unknown=1, NotChecked=32, Total=342 [2022-07-19 14:45:12,405 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 61 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 81 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 14:45:12,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 293 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 84 Invalid, 0 Unknown, 81 Unchecked, 0.1s Time] [2022-07-19 14:45:12,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-07-19 14:45:12,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 73. [2022-07-19 14:45:12,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.2777777777777777) internal successors, (92), 72 states have internal predecessors, (92), 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) [2022-07-19 14:45:12,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 92 transitions. [2022-07-19 14:45:12,413 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 92 transitions. Word has length 38 [2022-07-19 14:45:12,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:45:12,414 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 92 transitions. [2022-07-19 14:45:12,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.6875) internal successors, (75), 16 states have internal predecessors, (75), 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) [2022-07-19 14:45:12,414 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 92 transitions. [2022-07-19 14:45:12,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-19 14:45:12,415 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:45:12,415 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:45:12,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-19 14:45:12,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:45:12,635 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:45:12,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:45:12,636 INFO L85 PathProgramCache]: Analyzing trace with hash 941641751, now seen corresponding path program 1 times [2022-07-19 14:45:12,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:45:12,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160068002] [2022-07-19 14:45:12,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:45:12,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:45:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:45:12,818 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:12,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:45:12,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160068002] [2022-07-19 14:45:12,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160068002] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:45:12,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787297574] [2022-07-19 14:45:12,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:45:12,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:45:12,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:45:12,820 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:45:12,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-19 14:45:12,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:45:12,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 54 conjunts are in the unsatisfiable core [2022-07-19 14:45:12,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:45:12,918 INFO L390 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 [2022-07-19 14:45:12,921 INFO L390 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 [2022-07-19 14:45:12,926 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:12,972 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:12,976 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:12,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:12,980 INFO L390 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 [2022-07-19 14:45:12,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:12,984 INFO L390 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 [2022-07-19 14:45:12,990 INFO L356 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-07-19 14:45:12,990 INFO L390 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 15 treesize of output 15 [2022-07-19 14:45:13,215 INFO L356 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2022-07-19 14:45:13,216 INFO L390 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 [2022-07-19 14:45:13,223 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-07-19 14:45:13,224 INFO L390 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 [2022-07-19 14:45:13,235 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:13,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:45:13,306 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:13,307 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 13 treesize of output 17 [2022-07-19 14:45:13,312 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:13,312 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 13 treesize of output 17 [2022-07-19 14:45:13,330 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_441 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_22| Int) (v_ArrVal_444 (Array Int Int))) (or (and (= (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_22| (store v_ArrVal_444 0 |c_ULTIMATE.start_main_~l~0#1.base|)) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|) 0) (= (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_22| (store v_ArrVal_441 0 |c_ULTIMATE.start_main_~l~0#1.offset|)) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|) 0)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_22|) 0)))) is different from false [2022-07-19 14:45:13,336 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:13,336 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 13 treesize of output 17 [2022-07-19 14:45:13,342 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:13,342 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 13 treesize of output 17 [2022-07-19 14:45:13,366 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:13,366 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 13 treesize of output 17 [2022-07-19 14:45:13,372 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:13,372 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 13 treesize of output 17 [2022-07-19 14:45:13,394 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:13,394 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 13 treesize of output 17 [2022-07-19 14:45:13,400 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:13,401 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 13 treesize of output 17 [2022-07-19 14:45:13,421 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:13,422 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 13 treesize of output 17 [2022-07-19 14:45:13,428 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:13,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 13 treesize of output 17 [2022-07-19 14:45:13,452 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:13,453 INFO L390 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 21 treesize of output 22 [2022-07-19 14:45:13,456 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:13,457 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 13 treesize of output 17 [2022-07-19 14:45:13,458 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:13,459 INFO L390 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 16 treesize of output 8 [2022-07-19 14:45:13,462 INFO L390 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 [2022-07-19 14:45:13,466 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:13,467 INFO L390 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 21 treesize of output 22 [2022-07-19 14:45:13,468 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:13,469 INFO L390 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 16 treesize of output 8 [2022-07-19 14:45:13,482 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2022-07-19 14:45:13,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787297574] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:45:13,483 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:45:13,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 16 [2022-07-19 14:45:13,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824406278] [2022-07-19 14:45:13,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:45:13,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-19 14:45:13,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:45:13,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-19 14:45:13,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=173, Unknown=1, NotChecked=26, Total=240 [2022-07-19 14:45:13,485 INFO L87 Difference]: Start difference. First operand 73 states and 92 transitions. Second operand has 16 states, 16 states have (on average 4.6875) internal successors, (75), 16 states have internal predecessors, (75), 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) [2022-07-19 14:45:13,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:45:13,718 INFO L93 Difference]: Finished difference Result 97 states and 120 transitions. [2022-07-19 14:45:13,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 14:45:13,718 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.6875) internal successors, (75), 16 states have internal predecessors, (75), 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 38 [2022-07-19 14:45:13,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:45:13,719 INFO L225 Difference]: With dead ends: 97 [2022-07-19 14:45:13,719 INFO L226 Difference]: Without dead ends: 61 [2022-07-19 14:45:13,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=276, Unknown=1, NotChecked=34, Total=380 [2022-07-19 14:45:13,720 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 64 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 86 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 14:45:13,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 328 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 114 Invalid, 0 Unknown, 86 Unchecked, 0.1s Time] [2022-07-19 14:45:13,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-07-19 14:45:13,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 56. [2022-07-19 14:45:13,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.309090909090909) internal successors, (72), 55 states have internal predecessors, (72), 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) [2022-07-19 14:45:13,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 72 transitions. [2022-07-19 14:45:13,726 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 72 transitions. Word has length 38 [2022-07-19 14:45:13,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:45:13,726 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 72 transitions. [2022-07-19 14:45:13,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.6875) internal successors, (75), 16 states have internal predecessors, (75), 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) [2022-07-19 14:45:13,726 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 72 transitions. [2022-07-19 14:45:13,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-19 14:45:13,727 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:45:13,727 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:45:13,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-19 14:45:13,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-19 14:45:13,944 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:45:13,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:45:13,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1704598909, now seen corresponding path program 4 times [2022-07-19 14:45:13,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:45:13,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714771829] [2022-07-19 14:45:13,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:45:13,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:45:13,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:45:14,318 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 14 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:14,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:45:14,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714771829] [2022-07-19 14:45:14,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714771829] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:45:14,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392456053] [2022-07-19 14:45:14,318 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-19 14:45:14,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:45:14,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:45:14,320 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:45:14,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-19 14:45:14,421 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-19 14:45:14,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 14:45:14,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 80 conjunts are in the unsatisfiable core [2022-07-19 14:45:14,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:45:14,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:14,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:14,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:14,437 INFO L390 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 21 treesize of output 26 [2022-07-19 14:45:14,442 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:14,490 INFO L390 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 [2022-07-19 14:45:14,495 INFO L390 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 [2022-07-19 14:45:14,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:14,499 INFO L390 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 [2022-07-19 14:45:14,514 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-19 14:45:14,514 INFO L390 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 29 [2022-07-19 14:45:14,609 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:14,614 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:14,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:14,619 INFO L390 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 59 treesize of output 49 [2022-07-19 14:45:14,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:14,629 INFO L356 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2022-07-19 14:45:14,629 INFO L390 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 28 treesize of output 22 [2022-07-19 14:45:14,633 INFO L390 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 [2022-07-19 14:45:14,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:14,637 INFO L390 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 [2022-07-19 14:45:15,216 INFO L356 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2022-07-19 14:45:15,217 INFO L390 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 [2022-07-19 14:45:15,226 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-07-19 14:45:15,226 INFO L390 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 [2022-07-19 14:45:15,308 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 15 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:15,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:45:15,529 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:15,529 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:15,533 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:15,534 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:15,545 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_33 (Array Int Int)) (v_arrayElimArr_34 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_27| Int) (v_ArrVal_570 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_27| v_ArrVal_570) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_27| v_arrayElimArr_33) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_27| v_arrayElimArr_34) |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_34 0))) (not (= (select v_arrayElimArr_33 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse0 (+ .cse1 4)) 1)) (not (= (select .cse0 (+ .cse1 8)) 3)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_27|) 0))))) is different from false [2022-07-19 14:45:15,609 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:15,609 INFO L390 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 [2022-07-19 14:45:15,612 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:15,613 INFO L390 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 [2022-07-19 14:45:15,615 INFO L390 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 98 treesize of output 78 [2022-07-19 14:45:15,621 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:15,621 INFO L390 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 [2022-07-19 14:45:15,623 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:15,624 INFO L390 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 [2022-07-19 14:45:15,725 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-07-19 14:45:15,725 INFO L390 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 [2022-07-19 14:45:15,726 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 15 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2022-07-19 14:45:15,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392456053] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:45:15,727 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:45:15,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 30 [2022-07-19 14:45:15,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131597178] [2022-07-19 14:45:15,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:45:15,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-07-19 14:45:15,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:45:15,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-07-19 14:45:15,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=728, Unknown=7, NotChecked=54, Total=870 [2022-07-19 14:45:15,729 INFO L87 Difference]: Start difference. First operand 56 states and 72 transitions. Second operand has 30 states, 30 states have (on average 3.6666666666666665) internal successors, (110), 30 states have internal predecessors, (110), 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) [2022-07-19 14:45:18,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:45:18,667 INFO L93 Difference]: Finished difference Result 120 states and 146 transitions. [2022-07-19 14:45:18,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-07-19 14:45:18,668 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.6666666666666665) internal successors, (110), 30 states have internal predecessors, (110), 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 [2022-07-19 14:45:18,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:45:18,669 INFO L225 Difference]: With dead ends: 120 [2022-07-19 14:45:18,669 INFO L226 Difference]: Without dead ends: 105 [2022-07-19 14:45:18,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 76 SyntacticMatches, 4 SemanticMatches, 58 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 619 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=714, Invalid=2705, Unknown=7, NotChecked=114, Total=3540 [2022-07-19 14:45:18,671 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 316 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 115 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 14:45:18,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 665 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 385 Invalid, 0 Unknown, 115 Unchecked, 0.4s Time] [2022-07-19 14:45:18,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-07-19 14:45:18,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 64. [2022-07-19 14:45:18,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 63 states have internal predecessors, (81), 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) [2022-07-19 14:45:18,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 81 transitions. [2022-07-19 14:45:18,678 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 81 transitions. Word has length 43 [2022-07-19 14:45:18,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:45:18,679 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 81 transitions. [2022-07-19 14:45:18,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.6666666666666665) internal successors, (110), 30 states have internal predecessors, (110), 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) [2022-07-19 14:45:18,679 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 81 transitions. [2022-07-19 14:45:18,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-19 14:45:18,680 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:45:18,680 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:45:18,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-19 14:45:18,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:45:18,906 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:45:18,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:45:18,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1510819905, now seen corresponding path program 2 times [2022-07-19 14:45:18,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:45:18,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280971938] [2022-07-19 14:45:18,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:45:18,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:45:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:45:19,227 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 13 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:19,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:45:19,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280971938] [2022-07-19 14:45:19,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280971938] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:45:19,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739454625] [2022-07-19 14:45:19,228 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 14:45:19,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:45:19,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:45:19,232 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:45:19,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-19 14:45:19,347 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-19 14:45:19,347 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 14:45:19,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 78 conjunts are in the unsatisfiable core [2022-07-19 14:45:19,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:45:19,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:19,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:19,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:19,365 INFO L390 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 21 treesize of output 26 [2022-07-19 14:45:19,370 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:19,421 INFO L390 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 [2022-07-19 14:45:19,426 INFO L390 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 [2022-07-19 14:45:19,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:19,430 INFO L390 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 [2022-07-19 14:45:19,445 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-19 14:45:19,446 INFO L390 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 29 [2022-07-19 14:45:19,554 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:19,558 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:19,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:19,564 INFO L390 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 59 treesize of output 49 [2022-07-19 14:45:19,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:19,570 INFO L390 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 [2022-07-19 14:45:19,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:19,578 INFO L356 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2022-07-19 14:45:19,579 INFO L390 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 28 treesize of output 22 [2022-07-19 14:45:19,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:19,583 INFO L390 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 [2022-07-19 14:45:20,079 INFO L356 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2022-07-19 14:45:20,079 INFO L390 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 [2022-07-19 14:45:20,094 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-07-19 14:45:20,094 INFO L390 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 [2022-07-19 14:45:20,160 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 15 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:20,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:45:20,340 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:20,341 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:20,348 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:20,348 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:20,360 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_699 (Array Int Int)) (v_arrayElimArr_40 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_32| Int) (v_arrayElimArr_41 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_32| v_ArrVal_699) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_32| v_arrayElimArr_40) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_32| v_arrayElimArr_41) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_32|) 0)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_41 0))) (not (= 1 (select .cse0 (+ .cse1 4)))) (not (= (select .cse0 (+ .cse1 8)) 3)) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_40 0)))))) is different from false [2022-07-19 14:45:20,425 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:20,425 INFO L390 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 [2022-07-19 14:45:20,428 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:20,429 INFO L390 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 [2022-07-19 14:45:20,432 INFO L390 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 98 treesize of output 78 [2022-07-19 14:45:20,437 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:20,437 INFO L390 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 [2022-07-19 14:45:20,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:20,441 INFO L390 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 [2022-07-19 14:45:20,540 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 15 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2022-07-19 14:45:20,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739454625] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:45:20,540 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:45:20,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 29 [2022-07-19 14:45:20,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20613796] [2022-07-19 14:45:20,541 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:45:20,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-07-19 14:45:20,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:45:20,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-07-19 14:45:20,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=680, Unknown=3, NotChecked=52, Total=812 [2022-07-19 14:45:20,543 INFO L87 Difference]: Start difference. First operand 64 states and 81 transitions. Second operand has 29 states, 29 states have (on average 3.793103448275862) internal successors, (110), 29 states have internal predecessors, (110), 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) [2022-07-19 14:45:25,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:45:25,011 INFO L93 Difference]: Finished difference Result 114 states and 139 transitions. [2022-07-19 14:45:25,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-19 14:45:25,011 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.793103448275862) internal successors, (110), 29 states have internal predecessors, (110), 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 [2022-07-19 14:45:25,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:45:25,012 INFO L225 Difference]: With dead ends: 114 [2022-07-19 14:45:25,012 INFO L226 Difference]: Without dead ends: 99 [2022-07-19 14:45:25,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 76 SyntacticMatches, 4 SemanticMatches, 51 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=613, Invalid=2040, Unknown=3, NotChecked=100, Total=2756 [2022-07-19 14:45:25,013 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 302 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 82 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 14:45:25,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 475 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 245 Invalid, 0 Unknown, 82 Unchecked, 0.3s Time] [2022-07-19 14:45:25,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-07-19 14:45:25,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 64. [2022-07-19 14:45:25,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 63 states have internal predecessors, (81), 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) [2022-07-19 14:45:25,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 81 transitions. [2022-07-19 14:45:25,027 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 81 transitions. Word has length 43 [2022-07-19 14:45:25,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:45:25,028 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 81 transitions. [2022-07-19 14:45:25,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.793103448275862) internal successors, (110), 29 states have internal predecessors, (110), 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) [2022-07-19 14:45:25,028 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 81 transitions. [2022-07-19 14:45:25,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-19 14:45:25,029 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:45:25,029 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:45:25,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-19 14:45:25,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:45:25,242 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:45:25,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:45:25,243 INFO L85 PathProgramCache]: Analyzing trace with hash -781342395, now seen corresponding path program 2 times [2022-07-19 14:45:25,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:45:25,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294961696] [2022-07-19 14:45:25,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:45:25,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:45:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:45:25,588 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 11 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:25,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:45:25,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294961696] [2022-07-19 14:45:25,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294961696] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:45:25,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60437623] [2022-07-19 14:45:25,589 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 14:45:25,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:45:25,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:45:25,592 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:45:25,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-19 14:45:25,706 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-19 14:45:25,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 14:45:25,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 82 conjunts are in the unsatisfiable core [2022-07-19 14:45:25,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:45:25,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:25,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:25,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:25,734 INFO L390 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 21 treesize of output 26 [2022-07-19 14:45:25,738 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:25,779 INFO L390 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 [2022-07-19 14:45:25,784 INFO L390 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 [2022-07-19 14:45:25,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:25,789 INFO L390 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 [2022-07-19 14:45:25,803 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-19 14:45:25,803 INFO L390 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 29 [2022-07-19 14:45:25,924 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:25,928 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:25,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:25,932 INFO L390 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 59 treesize of output 49 [2022-07-19 14:45:25,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:25,936 INFO L390 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 [2022-07-19 14:45:25,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:25,940 INFO L390 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 [2022-07-19 14:45:25,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:25,949 INFO L356 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2022-07-19 14:45:25,949 INFO L390 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 28 treesize of output 22 [2022-07-19 14:45:26,474 INFO L356 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2022-07-19 14:45:26,474 INFO L390 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 [2022-07-19 14:45:26,481 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-07-19 14:45:26,481 INFO L390 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 [2022-07-19 14:45:26,561 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 13 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:26,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:45:26,660 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:26,660 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:26,672 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:26,672 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:26,685 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_46 (Array Int Int)) (v_arrayElimArr_47 (Array Int Int)) (v_ArrVal_827 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_37| Int)) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_37| v_ArrVal_827) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_37| v_arrayElimArr_46) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_37| v_arrayElimArr_47) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select v_arrayElimArr_47 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse0 (+ .cse1 4)) 0)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_37|) 0)) (not (= (select v_arrayElimArr_46 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= 2 (select .cse0 (+ 8 .cse1))))))) is different from false [2022-07-19 14:45:26,750 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:26,750 INFO L390 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 [2022-07-19 14:45:26,753 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:26,754 INFO L390 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 [2022-07-19 14:45:26,756 INFO L390 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 [2022-07-19 14:45:26,761 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:26,761 INFO L390 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 [2022-07-19 14:45:26,763 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:26,764 INFO L390 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 [2022-07-19 14:45:26,855 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-07-19 14:45:26,856 INFO L390 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 [2022-07-19 14:45:26,857 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 13 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2022-07-19 14:45:26,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60437623] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:45:26,858 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:45:26,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 25 [2022-07-19 14:45:26,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500749785] [2022-07-19 14:45:26,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:45:26,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-07-19 14:45:26,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:45:26,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-07-19 14:45:26,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=483, Unknown=3, NotChecked=44, Total=600 [2022-07-19 14:45:26,860 INFO L87 Difference]: Start difference. First operand 64 states and 81 transitions. Second operand has 25 states, 25 states have (on average 3.92) internal successors, (98), 25 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) [2022-07-19 14:45:35,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:45:35,480 INFO L93 Difference]: Finished difference Result 594 states and 712 transitions. [2022-07-19 14:45:35,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 185 states. [2022-07-19 14:45:35,480 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.92) internal successors, (98), 25 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 45 [2022-07-19 14:45:35,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:45:35,482 INFO L225 Difference]: With dead ends: 594 [2022-07-19 14:45:35,482 INFO L226 Difference]: Without dead ends: 592 [2022-07-19 14:45:35,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 88 SyntacticMatches, 5 SemanticMatches, 199 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 17240 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=4813, Invalid=34988, Unknown=3, NotChecked=396, Total=40200 [2022-07-19 14:45:35,489 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 522 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 412 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 14:45:35,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 523 Invalid, 1157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 407 Invalid, 0 Unknown, 412 Unchecked, 0.6s Time] [2022-07-19 14:45:35,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2022-07-19 14:45:35,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 132. [2022-07-19 14:45:35,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 131 states have (on average 1.3587786259541985) internal successors, (178), 131 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) [2022-07-19 14:45:35,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 178 transitions. [2022-07-19 14:45:35,516 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 178 transitions. Word has length 45 [2022-07-19 14:45:35,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:45:35,517 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 178 transitions. [2022-07-19 14:45:35,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.92) internal successors, (98), 25 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) [2022-07-19 14:45:35,517 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 178 transitions. [2022-07-19 14:45:35,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-19 14:45:35,517 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:45:35,518 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:45:35,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-19 14:45:35,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-19 14:45:35,719 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:45:35,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:45:35,720 INFO L85 PathProgramCache]: Analyzing trace with hash 993328381, now seen corresponding path program 1 times [2022-07-19 14:45:35,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:45:35,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954704884] [2022-07-19 14:45:35,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:45:35,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:45:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:45:36,054 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 17 proven. 39 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-19 14:45:36,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:45:36,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954704884] [2022-07-19 14:45:36,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954704884] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:45:36,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395420821] [2022-07-19 14:45:36,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:45:36,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:45:36,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:45:36,057 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:45:36,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-19 14:45:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:45:36,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 80 conjunts are in the unsatisfiable core [2022-07-19 14:45:36,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:45:36,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:36,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:36,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:36,213 INFO L390 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 21 treesize of output 26 [2022-07-19 14:45:36,219 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:36,272 INFO L390 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 [2022-07-19 14:45:36,286 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-19 14:45:36,286 INFO L390 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 29 [2022-07-19 14:45:36,289 INFO L390 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 [2022-07-19 14:45:36,298 INFO L390 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 [2022-07-19 14:45:36,378 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:36,382 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:36,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:36,387 INFO L390 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 [2022-07-19 14:45:36,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:36,392 INFO L390 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 59 treesize of output 49 [2022-07-19 14:45:36,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:36,402 INFO L356 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2022-07-19 14:45:36,402 INFO L390 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 28 treesize of output 22 [2022-07-19 14:45:36,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:36,406 INFO L390 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 [2022-07-19 14:45:36,887 INFO L356 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2022-07-19 14:45:36,887 INFO L390 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 [2022-07-19 14:45:36,893 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-07-19 14:45:36,893 INFO L390 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 [2022-07-19 14:45:36,963 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 17 proven. 39 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-19 14:45:36,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:45:37,096 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:37,096 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:37,103 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:37,103 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:37,131 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_952 (Array Int Int)) (v_arrayElimArr_54 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_42| Int) (v_arrayElimArr_53 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_42| v_ArrVal_952) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_42| v_arrayElimArr_53) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_42| v_arrayElimArr_54) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select v_arrayElimArr_53 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_54 0))) (not (= (select .cse0 (+ .cse1 4)) 0)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_42|) 0)) (not (= 2 (select .cse0 (+ .cse1 8))))))) is different from false [2022-07-19 14:45:37,191 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:37,191 INFO L390 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 [2022-07-19 14:45:37,193 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:37,196 INFO L390 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 [2022-07-19 14:45:37,199 INFO L390 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 [2022-07-19 14:45:37,204 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:37,204 INFO L390 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 [2022-07-19 14:45:37,206 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:37,208 INFO L390 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 [2022-07-19 14:45:37,318 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 17 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 12 not checked. [2022-07-19 14:45:37,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395420821] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:45:37,318 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:45:37,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 26 [2022-07-19 14:45:37,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127517135] [2022-07-19 14:45:37,318 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:45:37,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-19 14:45:37,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:45:37,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-19 14:45:37,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=522, Unknown=7, NotChecked=46, Total=650 [2022-07-19 14:45:37,320 INFO L87 Difference]: Start difference. First operand 132 states and 178 transitions. Second operand has 26 states, 26 states have (on average 4.1923076923076925) internal successors, (109), 26 states have internal predecessors, (109), 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) [2022-07-19 14:45:38,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:45:38,604 INFO L93 Difference]: Finished difference Result 178 states and 229 transitions. [2022-07-19 14:45:38,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-07-19 14:45:38,605 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.1923076923076925) internal successors, (109), 26 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-07-19 14:45:38,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:45:38,605 INFO L225 Difference]: With dead ends: 178 [2022-07-19 14:45:38,605 INFO L226 Difference]: Without dead ends: 176 [2022-07-19 14:45:38,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 89 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=388, Invalid=1679, Unknown=7, NotChecked=88, Total=2162 [2022-07-19 14:45:38,607 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 89 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 109 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 14:45:38,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 446 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 282 Invalid, 0 Unknown, 109 Unchecked, 0.2s Time] [2022-07-19 14:45:38,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-07-19 14:45:38,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 129. [2022-07-19 14:45:38,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.3671875) internal successors, (175), 128 states have internal predecessors, (175), 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) [2022-07-19 14:45:38,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 175 transitions. [2022-07-19 14:45:38,621 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 175 transitions. Word has length 49 [2022-07-19 14:45:38,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:45:38,621 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 175 transitions. [2022-07-19 14:45:38,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.1923076923076925) internal successors, (109), 26 states have internal predecessors, (109), 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) [2022-07-19 14:45:38,622 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 175 transitions. [2022-07-19 14:45:38,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-19 14:45:38,622 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:45:38,622 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:45:38,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-07-19 14:45:38,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-19 14:45:38,823 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:45:38,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:45:38,823 INFO L85 PathProgramCache]: Analyzing trace with hash -544700735, now seen corresponding path program 2 times [2022-07-19 14:45:38,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:45:38,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215927251] [2022-07-19 14:45:38,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:45:38,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:45:38,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:45:39,114 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 17 proven. 39 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-19 14:45:39,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:45:39,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215927251] [2022-07-19 14:45:39,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215927251] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:45:39,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622644713] [2022-07-19 14:45:39,114 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 14:45:39,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:45:39,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:45:39,116 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:45:39,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-19 14:45:39,230 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-19 14:45:39,230 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 14:45:39,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 82 conjunts are in the unsatisfiable core [2022-07-19 14:45:39,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:45:39,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:39,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:39,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:39,247 INFO L390 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 21 treesize of output 26 [2022-07-19 14:45:39,251 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:39,301 INFO L390 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 [2022-07-19 14:45:39,304 INFO L390 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 [2022-07-19 14:45:39,316 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-19 14:45:39,316 INFO L390 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 29 [2022-07-19 14:45:39,320 INFO L390 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 [2022-07-19 14:45:39,393 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:39,397 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:39,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:39,402 INFO L390 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 [2022-07-19 14:45:39,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:39,418 INFO L390 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 59 treesize of output 49 [2022-07-19 14:45:39,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:39,425 INFO L356 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2022-07-19 14:45:39,425 INFO L390 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 28 treesize of output 22 [2022-07-19 14:45:39,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:39,430 INFO L390 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 [2022-07-19 14:45:39,876 INFO L356 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2022-07-19 14:45:39,876 INFO L390 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 [2022-07-19 14:45:39,883 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-07-19 14:45:39,884 INFO L390 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 [2022-07-19 14:45:39,954 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 17 proven. 39 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-19 14:45:39,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:45:40,062 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:40,063 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:40,067 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:40,067 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:40,077 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_59 (Array Int Int)) (v_arrayElimArr_60 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_47| Int) (v_ArrVal_1084 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_47| v_ArrVal_1084) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_47| v_arrayElimArr_59) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_47| v_arrayElimArr_60) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select .cse0 (+ 8 .cse1)) 2)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_60 0))) (not (= (select v_arrayElimArr_59 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse0 (+ .cse1 4)) 0)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_47|) 0))))) is different from false [2022-07-19 14:45:40,124 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:40,125 INFO L390 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 [2022-07-19 14:45:40,128 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:40,130 INFO L390 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 [2022-07-19 14:45:40,132 INFO L390 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 98 treesize of output 78 [2022-07-19 14:45:40,138 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:40,138 INFO L390 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 [2022-07-19 14:45:40,140 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:40,142 INFO L390 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 [2022-07-19 14:45:40,267 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-07-19 14:45:40,267 INFO L390 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 [2022-07-19 14:45:40,268 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 17 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 12 not checked. [2022-07-19 14:45:40,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1622644713] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:45:40,269 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:45:40,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 24 [2022-07-19 14:45:40,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353796712] [2022-07-19 14:45:40,269 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:45:40,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-19 14:45:40,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:45:40,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-19 14:45:40,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=437, Unknown=6, NotChecked=42, Total=552 [2022-07-19 14:45:40,271 INFO L87 Difference]: Start difference. First operand 129 states and 175 transitions. Second operand has 24 states, 24 states have (on average 4.083333333333333) internal successors, (98), 24 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) [2022-07-19 14:45:41,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:45:41,554 INFO L93 Difference]: Finished difference Result 166 states and 216 transitions. [2022-07-19 14:45:41,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-19 14:45:41,555 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.083333333333333) internal successors, (98), 24 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 49 [2022-07-19 14:45:41,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:45:41,559 INFO L225 Difference]: With dead ends: 166 [2022-07-19 14:45:41,559 INFO L226 Difference]: Without dead ends: 164 [2022-07-19 14:45:41,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 90 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=361, Invalid=1707, Unknown=6, NotChecked=88, Total=2162 [2022-07-19 14:45:41,561 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 95 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 121 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 14:45:41,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 460 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 352 Invalid, 0 Unknown, 121 Unchecked, 0.3s Time] [2022-07-19 14:45:41,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-07-19 14:45:41,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 67. [2022-07-19 14:45:41,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 66 states have internal predecessors, (85), 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) [2022-07-19 14:45:41,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 85 transitions. [2022-07-19 14:45:41,568 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 85 transitions. Word has length 49 [2022-07-19 14:45:41,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:45:41,568 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 85 transitions. [2022-07-19 14:45:41,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.083333333333333) internal successors, (98), 24 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) [2022-07-19 14:45:41,568 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 85 transitions. [2022-07-19 14:45:41,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-19 14:45:41,569 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:45:41,569 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:45:41,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-19 14:45:41,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-19 14:45:41,771 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:45:41,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:45:41,772 INFO L85 PathProgramCache]: Analyzing trace with hash 2085516585, now seen corresponding path program 5 times [2022-07-19 14:45:41,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:45:41,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129228491] [2022-07-19 14:45:41,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:45:41,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:45:41,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:45:41,964 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 12 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:41,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:45:41,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129228491] [2022-07-19 14:45:41,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129228491] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:45:41,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026387712] [2022-07-19 14:45:41,964 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-19 14:45:41,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:45:41,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:45:41,965 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:45:41,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-19 14:45:42,283 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-07-19 14:45:42,283 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 14:45:42,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 81 conjunts are in the unsatisfiable core [2022-07-19 14:45:42,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:45:42,309 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:42,313 INFO L390 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 [2022-07-19 14:45:42,316 INFO L390 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 [2022-07-19 14:45:42,354 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:42,357 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:42,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:42,360 INFO L390 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 [2022-07-19 14:45:42,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:42,363 INFO L390 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 [2022-07-19 14:45:42,378 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-19 14:45:42,378 INFO L390 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 29 [2022-07-19 14:45:42,447 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:42,450 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:42,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:42,459 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-19 14:45:42,459 INFO L390 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 56 treesize of output 52 [2022-07-19 14:45:42,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:42,468 INFO L356 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2022-07-19 14:45:42,469 INFO L390 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 28 treesize of output 22 [2022-07-19 14:45:42,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:42,473 INFO L390 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 33 treesize of output 38 [2022-07-19 14:45:42,873 INFO L356 Elim1Store]: treesize reduction 85, result has 11.5 percent of original size [2022-07-19 14:45:42,873 INFO L390 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 [2022-07-19 14:45:42,897 INFO L356 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2022-07-19 14:45:42,897 INFO L390 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 [2022-07-19 14:45:42,901 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 12 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:42,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:45:42,978 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:42,978 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 37 [2022-07-19 14:45:42,981 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:42,981 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 30 treesize of output 31 [2022-07-19 14:45:42,989 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:42,989 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 34 [2022-07-19 14:45:42,992 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:42,992 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:43,030 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1216 (Array Int Int)) (v_ArrVal_1210 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_53| Int)) (or (let ((.cse0 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_53| (store v_ArrVal_1216 0 |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse3 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_53| (store v_ArrVal_1210 0 |c_ULTIMATE.start_main_~l~0#1.base|)))) (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) 0) (= (select (select .cse3 .cse1) .cse2) 0)))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_53|) 0)))) is different from false [2022-07-19 14:45:43,036 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,037 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 37 [2022-07-19 14:45:43,041 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 30 treesize of output 31 [2022-07-19 14:45:43,052 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,052 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 34 [2022-07-19 14:45:43,056 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,057 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:43,087 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,088 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 37 [2022-07-19 14:45:43,095 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,095 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 30 treesize of output 31 [2022-07-19 14:45:43,103 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,103 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 34 [2022-07-19 14:45:43,106 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,107 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:43,132 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,132 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 37 [2022-07-19 14:45:43,135 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,135 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 30 treesize of output 31 [2022-07-19 14:45:43,142 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,143 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 34 [2022-07-19 14:45:43,145 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,146 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:43,178 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,178 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 37 [2022-07-19 14:45:43,181 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,181 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 30 treesize of output 31 [2022-07-19 14:45:43,189 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,189 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 34 [2022-07-19 14:45:43,192 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,192 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:43,222 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,223 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 51 treesize of output 52 [2022-07-19 14:45:43,226 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,226 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 45 treesize of output 49 [2022-07-19 14:45:43,230 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,230 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 42 treesize of output 43 [2022-07-19 14:45:43,234 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,234 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 36 treesize of output 40 [2022-07-19 14:45:43,246 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,247 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 51 treesize of output 52 [2022-07-19 14:45:43,250 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,250 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 45 treesize of output 49 [2022-07-19 14:45:43,254 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,255 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 42 treesize of output 43 [2022-07-19 14:45:43,259 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,259 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 36 treesize of output 40 [2022-07-19 14:45:43,363 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimArr_93 (Array Int Int)) (v_arrayElimArr_92 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_53| Int) (v_arrayElimArr_95 (Array Int Int)) (v_arrayElimArr_94 (Array Int Int))) (let ((.cse0 (select v_arrayElimArr_94 0))) (or (not (= (select (store |c_#valid| .cse0 1) |v_ULTIMATE.start_main_~l~0#1.base_53|) 0)) (not (= (select v_arrayElimArr_95 0) 0)) (not (= (select |c_#valid| .cse0) 0)) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_92 0))) (= (select (let ((.cse1 (store (store |c_#memory_$Pointer$.base| .cse0 v_arrayElimArr_92) |v_ULTIMATE.start_main_~l~0#1.base_53| v_arrayElimArr_94))) (select .cse1 (select (select .cse1 .cse0) 0))) (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_arrayElimArr_93) |v_ULTIMATE.start_main_~l~0#1.base_53| v_arrayElimArr_95) .cse0) 0)) 0) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_93 0)))))) (forall ((v_arrayElimArr_88 (Array Int Int)) (v_arrayElimArr_89 (Array Int Int)) (v_arrayElimArr_91 (Array Int Int)) (v_arrayElimArr_90 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_53| Int)) (let ((.cse3 (select v_arrayElimArr_91 0))) (or (not (= (select v_arrayElimArr_90 0) 0)) (= (let ((.cse2 (store (store |c_#memory_$Pointer$.offset| .cse3 v_arrayElimArr_88) |v_ULTIMATE.start_main_~l~0#1.base_53| v_arrayElimArr_90))) (select (select .cse2 (select (select (store (store |c_#memory_$Pointer$.base| .cse3 v_arrayElimArr_89) |v_ULTIMATE.start_main_~l~0#1.base_53| v_arrayElimArr_91) .cse3) 0)) (select (select .cse2 .cse3) 0))) 0) (not (= (select v_arrayElimArr_89 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select |c_#valid| .cse3) 0)) (not (= (select (store |c_#valid| .cse3 1) |v_ULTIMATE.start_main_~l~0#1.base_53|) 0)) (not (= (select v_arrayElimArr_88 0) |c_ULTIMATE.start_main_~l~0#1.offset|)))))) is different from false [2022-07-19 14:45:43,513 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,514 INFO L390 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 79 treesize of output 66 [2022-07-19 14:45:43,516 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:43,522 INFO L356 Elim1Store]: treesize reduction 32, result has 11.1 percent of original size [2022-07-19 14:45:43,522 INFO L390 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 256 treesize of output 222 [2022-07-19 14:45:43,530 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,530 INFO L390 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 214 treesize of output 152 [2022-07-19 14:45:43,532 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:43,534 INFO L390 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 80 treesize of output 74 [2022-07-19 14:45:43,537 INFO L390 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 99 treesize of output 83 [2022-07-19 14:45:43,541 INFO L390 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 64 treesize of output 54 [2022-07-19 14:45:43,544 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:43,545 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:43,548 INFO L356 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-07-19 14:45:43,549 INFO L390 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 14 [2022-07-19 14:45:43,552 INFO L390 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 37 treesize of output 31 [2022-07-19 14:45:43,558 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-19 14:45:43,558 INFO L390 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 22 treesize of output 24 [2022-07-19 14:45:43,566 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,566 INFO L390 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 79 treesize of output 78 [2022-07-19 14:45:43,571 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:43,572 INFO L390 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 54 [2022-07-19 14:45:43,574 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:43,576 INFO L390 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 42 treesize of output 36 [2022-07-19 14:45:43,579 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:43,581 INFO L390 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 88 treesize of output 74 [2022-07-19 14:45:43,584 INFO L390 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 99 treesize of output 79 [2022-07-19 14:45:43,586 INFO L390 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 79 treesize of output 63 [2022-07-19 14:45:43,596 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-07-19 14:45:43,597 INFO L390 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 22 treesize of output 18 [2022-07-19 14:45:43,609 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 12 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 21 not checked. [2022-07-19 14:45:43,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026387712] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:45:43,610 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:45:43,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 21 [2022-07-19 14:45:43,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522427304] [2022-07-19 14:45:43,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:45:43,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-19 14:45:43,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:45:43,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-19 14:45:43,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=296, Unknown=2, NotChecked=70, Total=420 [2022-07-19 14:45:43,614 INFO L87 Difference]: Start difference. First operand 67 states and 85 transitions. Second operand has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 21 states have internal predecessors, (106), 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) [2022-07-19 14:45:43,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:45:43,991 INFO L93 Difference]: Finished difference Result 133 states and 164 transitions. [2022-07-19 14:45:43,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 14:45:43,992 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 21 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-07-19 14:45:43,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:45:43,992 INFO L225 Difference]: With dead ends: 133 [2022-07-19 14:45:43,992 INFO L226 Difference]: Without dead ends: 109 [2022-07-19 14:45:43,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 95 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=432, Unknown=2, NotChecked=86, Total=600 [2022-07-19 14:45:43,993 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 61 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 207 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 14:45:43,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 578 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 155 Invalid, 0 Unknown, 207 Unchecked, 0.2s Time] [2022-07-19 14:45:43,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-07-19 14:45:44,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 100. [2022-07-19 14:45:44,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.2626262626262625) internal successors, (125), 99 states have internal predecessors, (125), 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) [2022-07-19 14:45:44,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions. [2022-07-19 14:45:44,002 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 51 [2022-07-19 14:45:44,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:45:44,002 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions. [2022-07-19 14:45:44,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 21 states have internal predecessors, (106), 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) [2022-07-19 14:45:44,002 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2022-07-19 14:45:44,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-19 14:45:44,002 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:45:44,002 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:45:44,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-19 14:45:44,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-19 14:45:44,203 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:45:44,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:45:44,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1891737581, now seen corresponding path program 3 times [2022-07-19 14:45:44,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:45:44,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840052458] [2022-07-19 14:45:44,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:45:44,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:45:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:45:44,399 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 12 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:44,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:45:44,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840052458] [2022-07-19 14:45:44,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840052458] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:45:44,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503273860] [2022-07-19 14:45:44,400 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-19 14:45:44,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:45:44,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:45:44,402 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:45:44,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-19 14:45:44,625 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-07-19 14:45:44,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 14:45:44,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 81 conjunts are in the unsatisfiable core [2022-07-19 14:45:44,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:45:44,646 INFO L390 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 [2022-07-19 14:45:44,649 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:44,652 INFO L390 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 [2022-07-19 14:45:44,695 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:44,698 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:44,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:44,702 INFO L390 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 [2022-07-19 14:45:44,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:44,706 INFO L390 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 [2022-07-19 14:45:44,718 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-19 14:45:44,718 INFO L390 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 29 [2022-07-19 14:45:44,819 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:44,823 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:44,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:44,839 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-19 14:45:44,840 INFO L390 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 56 treesize of output 52 [2022-07-19 14:45:44,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:44,849 INFO L356 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2022-07-19 14:45:44,850 INFO L390 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 28 treesize of output 22 [2022-07-19 14:45:44,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:44,855 INFO L390 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 33 treesize of output 38 [2022-07-19 14:45:45,284 INFO L356 Elim1Store]: treesize reduction 85, result has 11.5 percent of original size [2022-07-19 14:45:45,284 INFO L390 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 [2022-07-19 14:45:45,295 INFO L356 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2022-07-19 14:45:45,295 INFO L390 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 [2022-07-19 14:45:45,300 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 12 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:45,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:45:45,380 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,381 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 34 [2022-07-19 14:45:45,388 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,388 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:45,396 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,396 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 37 [2022-07-19 14:45:45,399 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,400 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 30 treesize of output 31 [2022-07-19 14:45:45,421 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_60| Int) (v_ArrVal_1339 (Array Int Int)) (v_ArrVal_1340 (Array Int Int))) (or (let ((.cse0 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_60| (store v_ArrVal_1340 0 |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse3 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_60| (store v_ArrVal_1339 0 |c_ULTIMATE.start_main_~l~0#1.base|)))) (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) 0) (= (select (select .cse3 .cse1) .cse2) 0)))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_60|) 0)))) is different from false [2022-07-19 14:45:45,426 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,426 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 34 [2022-07-19 14:45:45,429 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,429 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:45,437 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,437 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 37 [2022-07-19 14:45:45,440 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,440 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 30 treesize of output 31 [2022-07-19 14:45:45,465 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,465 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 34 [2022-07-19 14:45:45,468 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,468 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:45,475 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,476 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 37 [2022-07-19 14:45:45,479 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,479 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 30 treesize of output 31 [2022-07-19 14:45:45,508 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,509 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 34 [2022-07-19 14:45:45,512 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,512 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:45,519 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,519 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 37 [2022-07-19 14:45:45,522 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,522 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 30 treesize of output 31 [2022-07-19 14:45:45,547 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,547 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 34 [2022-07-19 14:45:45,550 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,550 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:45,557 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,557 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 37 [2022-07-19 14:45:45,562 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,562 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 30 treesize of output 31 [2022-07-19 14:45:45,591 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,591 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 51 treesize of output 52 [2022-07-19 14:45:45,594 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,595 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 45 treesize of output 49 [2022-07-19 14:45:45,598 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,599 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 42 treesize of output 43 [2022-07-19 14:45:45,608 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,608 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 36 treesize of output 40 [2022-07-19 14:45:45,625 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,625 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 51 treesize of output 52 [2022-07-19 14:45:45,630 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,630 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 45 treesize of output 49 [2022-07-19 14:45:45,636 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,636 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 42 treesize of output 43 [2022-07-19 14:45:45,642 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,642 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 36 treesize of output 40 [2022-07-19 14:45:45,753 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~l~0#1.base_60| Int) (v_arrayElimArr_125 (Array Int Int)) (v_arrayElimArr_124 (Array Int Int)) (v_arrayElimArr_127 (Array Int Int)) (v_arrayElimArr_126 (Array Int Int))) (let ((.cse0 (select v_arrayElimArr_127 0))) (or (not (= (select |c_#valid| .cse0) 0)) (= (let ((.cse1 (store (store |c_#memory_$Pointer$.offset| .cse0 v_arrayElimArr_124) |v_ULTIMATE.start_main_~l~0#1.base_60| v_arrayElimArr_126))) (select (select .cse1 (select (select (store (store |c_#memory_$Pointer$.base| .cse0 v_arrayElimArr_125) |v_ULTIMATE.start_main_~l~0#1.base_60| v_arrayElimArr_127) .cse0) 0)) (select (select .cse1 .cse0) 0))) 0) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_125 0))) (not (= (select (store |c_#valid| .cse0 1) |v_ULTIMATE.start_main_~l~0#1.base_60|) 0)) (not (= (select v_arrayElimArr_124 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select v_arrayElimArr_126 0) 0))))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_60| Int) (v_arrayElimArr_131 (Array Int Int)) (v_arrayElimArr_130 (Array Int Int)) (v_arrayElimArr_129 (Array Int Int)) (v_arrayElimArr_128 (Array Int Int))) (let ((.cse3 (select v_arrayElimArr_130 0))) (or (not (= (select v_arrayElimArr_129 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (= (select (let ((.cse2 (store (store |c_#memory_$Pointer$.base| .cse3 v_arrayElimArr_128) |v_ULTIMATE.start_main_~l~0#1.base_60| v_arrayElimArr_130))) (select .cse2 (select (select .cse2 .cse3) 0))) (select (select (store (store |c_#memory_$Pointer$.offset| .cse3 v_arrayElimArr_129) |v_ULTIMATE.start_main_~l~0#1.base_60| v_arrayElimArr_131) .cse3) 0)) 0) (not (= (select (store |c_#valid| .cse3 1) |v_ULTIMATE.start_main_~l~0#1.base_60|) 0)) (not (= (select v_arrayElimArr_131 0) 0)) (not (= (select v_arrayElimArr_128 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select |c_#valid| .cse3) 0)))))) is different from false [2022-07-19 14:45:45,870 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,871 INFO L390 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 79 treesize of output 78 [2022-07-19 14:45:45,876 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,877 INFO L390 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 54 [2022-07-19 14:45:45,879 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:45,880 INFO L390 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 42 treesize of output 36 [2022-07-19 14:45:45,883 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:45,884 INFO L390 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 88 treesize of output 74 [2022-07-19 14:45:45,887 INFO L390 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 99 treesize of output 79 [2022-07-19 14:45:45,888 INFO L390 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 79 treesize of output 63 [2022-07-19 14:45:45,895 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-07-19 14:45:45,895 INFO L390 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 22 treesize of output 18 [2022-07-19 14:45:45,903 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,903 INFO L390 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 79 treesize of output 66 [2022-07-19 14:45:45,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:45,924 INFO L356 Elim1Store]: treesize reduction 32, result has 11.1 percent of original size [2022-07-19 14:45:45,924 INFO L390 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 572 treesize of output 506 [2022-07-19 14:45:45,933 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:45,933 INFO L390 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 498 treesize of output 340 [2022-07-19 14:45:45,937 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:45,939 INFO L390 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 172 treesize of output 166 [2022-07-19 14:45:45,944 INFO L390 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 191 treesize of output 171 [2022-07-19 14:45:45,948 INFO L390 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 171 treesize of output 139 [2022-07-19 14:45:45,957 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-19 14:45:45,957 INFO L390 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 124 treesize of output 114 [2022-07-19 14:45:45,963 INFO L390 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 90 treesize of output 80 [2022-07-19 14:45:45,977 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 12 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 21 not checked. [2022-07-19 14:45:45,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503273860] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:45:45,977 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:45:45,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 21 [2022-07-19 14:45:45,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316164618] [2022-07-19 14:45:45,978 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:45:45,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-19 14:45:45,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:45:45,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-19 14:45:45,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=296, Unknown=2, NotChecked=70, Total=420 [2022-07-19 14:45:45,979 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 21 states have internal predecessors, (106), 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) [2022-07-19 14:45:46,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:45:46,272 INFO L93 Difference]: Finished difference Result 136 states and 165 transitions. [2022-07-19 14:45:46,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 14:45:46,273 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 21 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-07-19 14:45:46,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:45:46,273 INFO L225 Difference]: With dead ends: 136 [2022-07-19 14:45:46,273 INFO L226 Difference]: Without dead ends: 104 [2022-07-19 14:45:46,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 95 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=435, Unknown=2, NotChecked=86, Total=600 [2022-07-19 14:45:46,274 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 59 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 228 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 14:45:46,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 641 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 137 Invalid, 0 Unknown, 228 Unchecked, 0.2s Time] [2022-07-19 14:45:46,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-07-19 14:45:46,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 97. [2022-07-19 14:45:46,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.25) internal successors, (120), 96 states have internal predecessors, (120), 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) [2022-07-19 14:45:46,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 120 transitions. [2022-07-19 14:45:46,282 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 120 transitions. Word has length 51 [2022-07-19 14:45:46,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:45:46,282 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 120 transitions. [2022-07-19 14:45:46,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 21 states have internal predecessors, (106), 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) [2022-07-19 14:45:46,282 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 120 transitions. [2022-07-19 14:45:46,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-19 14:45:46,283 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:45:46,283 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:45:46,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-19 14:45:46,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-19 14:45:46,484 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:45:46,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:45:46,484 INFO L85 PathProgramCache]: Analyzing trace with hash 13616817, now seen corresponding path program 4 times [2022-07-19 14:45:46,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:45:46,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796308936] [2022-07-19 14:45:46,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:45:46,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:45:46,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:45:46,681 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 12 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:46,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:45:46,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796308936] [2022-07-19 14:45:46,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796308936] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:45:46,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134560150] [2022-07-19 14:45:46,681 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-19 14:45:46,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:45:46,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:45:46,683 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:45:46,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-19 14:45:46,858 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-19 14:45:46,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 14:45:46,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 81 conjunts are in the unsatisfiable core [2022-07-19 14:45:46,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:45:46,878 INFO L390 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 [2022-07-19 14:45:46,881 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:46,884 INFO L390 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 [2022-07-19 14:45:46,925 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:46,928 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:46,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:46,933 INFO L390 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 [2022-07-19 14:45:46,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:46,936 INFO L390 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 [2022-07-19 14:45:46,947 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-19 14:45:46,947 INFO L390 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 29 [2022-07-19 14:45:47,015 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:47,018 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:47,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:47,027 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-19 14:45:47,027 INFO L390 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 56 treesize of output 52 [2022-07-19 14:45:47,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:47,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:47,031 INFO L390 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 33 treesize of output 38 [2022-07-19 14:45:47,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:47,038 INFO L356 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2022-07-19 14:45:47,038 INFO L390 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 28 treesize of output 22 [2022-07-19 14:45:47,448 INFO L356 Elim1Store]: treesize reduction 85, result has 11.5 percent of original size [2022-07-19 14:45:47,449 INFO L390 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 [2022-07-19 14:45:47,463 INFO L356 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2022-07-19 14:45:47,464 INFO L390 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 [2022-07-19 14:45:47,469 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 12 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:47,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:45:47,559 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,559 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 34 [2022-07-19 14:45:47,562 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,563 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:47,570 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,570 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 37 [2022-07-19 14:45:47,573 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,573 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 30 treesize of output 31 [2022-07-19 14:45:47,596 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1475 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_67| Int) (v_ArrVal_1470 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_67|) 0)) (let ((.cse3 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_67| (store v_ArrVal_1470 0 |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse0 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_67| (store v_ArrVal_1475 0 |c_ULTIMATE.start_main_~l~0#1.base|)))) (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) 0) (= (select (select .cse3 .cse1) .cse2) 0)))))) is different from false [2022-07-19 14:45:47,602 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,602 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 34 [2022-07-19 14:45:47,605 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,605 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:47,612 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,613 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 37 [2022-07-19 14:45:47,616 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,616 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 30 treesize of output 31 [2022-07-19 14:45:47,643 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,643 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 34 [2022-07-19 14:45:47,663 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,663 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:47,670 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,671 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 37 [2022-07-19 14:45:47,674 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,674 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 30 treesize of output 31 [2022-07-19 14:45:47,700 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,700 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 34 [2022-07-19 14:45:47,704 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,704 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:47,711 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,711 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 37 [2022-07-19 14:45:47,714 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,715 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 30 treesize of output 31 [2022-07-19 14:45:47,739 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,739 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 34 [2022-07-19 14:45:47,742 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,742 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:47,750 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,751 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 33 treesize of output 37 [2022-07-19 14:45:47,754 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,754 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 30 treesize of output 31 [2022-07-19 14:45:47,792 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,792 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 51 treesize of output 52 [2022-07-19 14:45:47,797 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,798 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 45 treesize of output 49 [2022-07-19 14:45:47,803 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,803 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 42 treesize of output 43 [2022-07-19 14:45:47,809 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,809 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 36 treesize of output 40 [2022-07-19 14:45:47,824 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,825 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 51 treesize of output 52 [2022-07-19 14:45:47,829 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,829 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 45 treesize of output 49 [2022-07-19 14:45:47,834 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,834 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 42 treesize of output 43 [2022-07-19 14:45:47,839 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:47,839 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 36 treesize of output 40 [2022-07-19 14:45:47,963 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimArr_165 (Array Int Int)) (v_arrayElimArr_164 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_67| Int) (v_arrayElimArr_167 (Array Int Int)) (v_arrayElimArr_166 (Array Int Int))) (let ((.cse1 (select v_arrayElimArr_167 0))) (or (= (let ((.cse0 (store (store |c_#memory_$Pointer$.offset| .cse1 v_arrayElimArr_164) |v_ULTIMATE.start_main_~l~0#1.base_67| v_arrayElimArr_166))) (select (select .cse0 (select (select (store (store |c_#memory_$Pointer$.base| .cse1 v_arrayElimArr_165) |v_ULTIMATE.start_main_~l~0#1.base_67| v_arrayElimArr_167) .cse1) 0)) (select (select .cse0 .cse1) 0))) 0) (not (= (select |c_#valid| .cse1) 0)) (not (= (select v_arrayElimArr_166 0) 0)) (not (= (select (store |c_#valid| .cse1 1) |v_ULTIMATE.start_main_~l~0#1.base_67|) 0)) (not (= (select v_arrayElimArr_165 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_164 0) |c_ULTIMATE.start_main_~l~0#1.offset|))))) (forall ((v_arrayElimArr_161 (Array Int Int)) (v_arrayElimArr_160 (Array Int Int)) (v_arrayElimArr_163 (Array Int Int)) (v_arrayElimArr_162 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_67| Int)) (let ((.cse2 (select v_arrayElimArr_162 0))) (or (not (= (select |c_#valid| .cse2) 0)) (= (select (let ((.cse3 (store (store |c_#memory_$Pointer$.base| .cse2 v_arrayElimArr_160) |v_ULTIMATE.start_main_~l~0#1.base_67| v_arrayElimArr_162))) (select .cse3 (select (select .cse3 .cse2) 0))) (select (select (store (store |c_#memory_$Pointer$.offset| .cse2 v_arrayElimArr_161) |v_ULTIMATE.start_main_~l~0#1.base_67| v_arrayElimArr_163) .cse2) 0)) 0) (not (= (select v_arrayElimArr_160 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_161 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= 0 (select v_arrayElimArr_163 0))) (not (= (select (store |c_#valid| .cse2 1) |v_ULTIMATE.start_main_~l~0#1.base_67|) 0)))))) is different from false [2022-07-19 14:45:48,102 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:48,102 INFO L390 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 79 treesize of output 66 [2022-07-19 14:45:48,106 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:48,112 INFO L356 Elim1Store]: treesize reduction 32, result has 11.1 percent of original size [2022-07-19 14:45:48,112 INFO L390 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 256 treesize of output 222 [2022-07-19 14:45:48,118 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:48,119 INFO L390 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 214 treesize of output 152 [2022-07-19 14:45:48,121 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:48,123 INFO L390 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 80 treesize of output 74 [2022-07-19 14:45:48,127 INFO L390 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 76 treesize of output 66 [2022-07-19 14:45:48,130 INFO L390 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 57 [2022-07-19 14:45:48,132 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:48,132 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:48,136 INFO L356 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-07-19 14:45:48,137 INFO L390 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 14 [2022-07-19 14:45:48,139 INFO L390 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 37 treesize of output 31 [2022-07-19 14:45:48,144 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-19 14:45:48,144 INFO L390 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 22 treesize of output 24 [2022-07-19 14:45:48,151 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:48,152 INFO L390 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 79 treesize of output 78 [2022-07-19 14:45:48,158 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:48,158 INFO L390 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 54 [2022-07-19 14:45:48,160 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:48,163 INFO L390 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 42 treesize of output 36 [2022-07-19 14:45:48,166 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:48,168 INFO L390 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 188 treesize of output 166 [2022-07-19 14:45:48,172 INFO L390 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 191 treesize of output 151 [2022-07-19 14:45:48,175 INFO L390 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 151 treesize of output 115 [2022-07-19 14:45:48,184 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-07-19 14:45:48,184 INFO L390 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 22 treesize of output 18 [2022-07-19 14:45:48,196 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 12 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 21 not checked. [2022-07-19 14:45:48,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134560150] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:45:48,196 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:45:48,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 21 [2022-07-19 14:45:48,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974143509] [2022-07-19 14:45:48,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:45:48,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-19 14:45:48,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:45:48,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-19 14:45:48,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=296, Unknown=2, NotChecked=70, Total=420 [2022-07-19 14:45:48,199 INFO L87 Difference]: Start difference. First operand 97 states and 120 transitions. Second operand has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 21 states have internal predecessors, (106), 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) [2022-07-19 14:45:48,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:45:48,538 INFO L93 Difference]: Finished difference Result 123 states and 150 transitions. [2022-07-19 14:45:48,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 14:45:48,539 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 21 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-07-19 14:45:48,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:45:48,539 INFO L225 Difference]: With dead ends: 123 [2022-07-19 14:45:48,540 INFO L226 Difference]: Without dead ends: 79 [2022-07-19 14:45:48,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 95 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=435, Unknown=2, NotChecked=86, Total=600 [2022-07-19 14:45:48,540 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 62 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 106 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 14:45:48,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 453 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 146 Invalid, 0 Unknown, 106 Unchecked, 0.2s Time] [2022-07-19 14:45:48,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-07-19 14:45:48,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 72. [2022-07-19 14:45:48,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.295774647887324) internal successors, (92), 71 states have internal predecessors, (92), 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) [2022-07-19 14:45:48,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 92 transitions. [2022-07-19 14:45:48,549 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 92 transitions. Word has length 51 [2022-07-19 14:45:48,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:45:48,549 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 92 transitions. [2022-07-19 14:45:48,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 21 states have internal predecessors, (106), 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) [2022-07-19 14:45:48,549 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 92 transitions. [2022-07-19 14:45:48,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-19 14:45:48,550 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:45:48,550 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:45:48,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-19 14:45:48,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:45:48,763 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:45:48,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:45:48,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1013477057, now seen corresponding path program 6 times [2022-07-19 14:45:48,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:45:48,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280815500] [2022-07-19 14:45:48,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:45:48,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:45:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:45:49,429 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 20 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:49,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:45:49,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280815500] [2022-07-19 14:45:49,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280815500] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:45:49,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600991356] [2022-07-19 14:45:49,430 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-19 14:45:49,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:45:49,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:45:49,431 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:45:49,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-19 14:45:49,744 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-07-19 14:45:49,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 14:45:49,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 106 conjunts are in the unsatisfiable core [2022-07-19 14:45:49,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:45:49,755 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:49,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:49,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:49,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:49,760 INFO L390 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 21 treesize of output 26 [2022-07-19 14:45:49,811 INFO L390 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 [2022-07-19 14:45:49,823 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-19 14:45:49,823 INFO L390 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 29 [2022-07-19 14:45:49,825 INFO L390 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 [2022-07-19 14:45:49,834 INFO L390 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 [2022-07-19 14:45:49,910 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:49,914 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:49,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:49,917 INFO L390 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 [2022-07-19 14:45:49,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:49,921 INFO L390 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 [2022-07-19 14:45:49,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:49,926 INFO L390 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 59 treesize of output 49 [2022-07-19 14:45:49,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:49,940 INFO L356 Elim1Store]: treesize reduction 42, result has 38.2 percent of original size [2022-07-19 14:45:49,941 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 49 [2022-07-19 14:45:50,060 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:50,064 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:45:50,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:50,086 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-19 14:45:50,086 INFO L390 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 119 treesize of output 83 [2022-07-19 14:45:50,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:50,091 INFO L390 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 48 treesize of output 36 [2022-07-19 14:45:50,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:50,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:50,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:50,101 INFO L356 Elim1Store]: treesize reduction 4, result has 80.0 percent of original size [2022-07-19 14:45:50,101 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 29 [2022-07-19 14:45:50,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:50,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:50,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:50,106 INFO L390 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 33 treesize of output 38 [2022-07-19 14:45:51,210 INFO L356 Elim1Store]: treesize reduction 77, result has 19.8 percent of original size [2022-07-19 14:45:51,210 INFO L390 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 190 treesize of output 100 [2022-07-19 14:45:51,222 INFO L356 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2022-07-19 14:45:51,222 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 25 [2022-07-19 14:45:51,324 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 21 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:45:51,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:45:51,609 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:51,609 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 147 treesize of output 135 [2022-07-19 14:45:51,613 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:51,613 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 129 treesize of output 117 [2022-07-19 14:45:51,624 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1646 (Array Int Int)) (v_arrayElimArr_176 (Array Int Int)) (v_arrayElimArr_177 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_74| Int)) (let ((.cse2 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_74| v_arrayElimArr_177)) (.cse5 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_74| v_arrayElimArr_176))) (let ((.cse3 (select (select .cse5 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse4 (select (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_74| v_ArrVal_1646) (select (select .cse5 .cse3) .cse4))) (.cse1 (select (select .cse2 .cse3) .cse4))) (or (not (= (select v_arrayElimArr_176 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_177 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_74|) 0)) (not (= (select .cse0 (+ 4 .cse1)) 1)) (not (= 3 (select .cse0 (+ 8 .cse1))))))))) is different from false [2022-07-19 14:45:51,678 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:51,678 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 233 treesize of output 221 [2022-07-19 14:45:51,688 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:51,688 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 215 treesize of output 203 [2022-07-19 14:45:51,707 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1646 (Array Int Int)) (v_arrayElimArr_176 (Array Int Int)) (v_arrayElimArr_179 (Array Int Int)) (v_arrayElimArr_178 (Array Int Int)) (v_arrayElimArr_177 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_74| Int) (v_ArrVal_1638 (Array Int Int))) (let ((.cse2 (select v_arrayElimArr_176 0))) (let ((.cse3 (store (store |c_#memory_$Pointer$.offset| .cse2 v_arrayElimArr_178) |v_ULTIMATE.start_main_~l~0#1.base_74| v_arrayElimArr_177)) (.cse6 (store (store |c_#memory_$Pointer$.base| .cse2 v_arrayElimArr_179) |v_ULTIMATE.start_main_~l~0#1.base_74| v_arrayElimArr_176))) (let ((.cse4 (select (select .cse6 .cse2) 0)) (.cse5 (select (select .cse3 .cse2) 0))) (let ((.cse0 (select (store (store |c_#memory_int| .cse2 v_ArrVal_1638) |v_ULTIMATE.start_main_~l~0#1.base_74| v_ArrVal_1646) (select (select .cse6 .cse4) .cse5))) (.cse1 (select (select .cse3 .cse4) .cse5))) (or (not (= (select v_arrayElimArr_177 0) 0)) (not (= (select v_arrayElimArr_179 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse0 (+ .cse1 4)) 1)) (not (= (select (store |c_#valid| .cse2 1) |v_ULTIMATE.start_main_~l~0#1.base_74|) 0)) (not (= 3 (select .cse0 (+ .cse1 8)))) (not (= (select |c_#valid| .cse2) 0)) (not (= (select v_arrayElimArr_178 0) |c_ULTIMATE.start_main_~l~0#1.offset|)))))))) is different from false [2022-07-19 14:45:51,799 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:51,799 INFO L390 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 351 treesize of output 289 [2022-07-19 14:45:51,805 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:45:51,805 INFO L390 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 279 treesize of output 217 [2022-07-19 14:45:51,808 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:51,808 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:51,809 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:51,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:45:51,811 INFO L390 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 153 treesize of output 107 [2022-07-19 14:45:51,817 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:45:51,820 INFO L390 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 327 treesize of output 305 [2022-07-19 14:45:51,824 INFO L390 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 338 treesize of output 284 [2022-07-19 14:45:51,826 INFO L390 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 278 treesize of output 234 [2022-07-19 14:45:52,193 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 21 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 21 not checked. [2022-07-19 14:45:52,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600991356] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:45:52,194 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:45:52,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 13, 13] total 39 [2022-07-19 14:45:52,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176429030] [2022-07-19 14:45:52,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:45:52,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-07-19 14:45:52,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:45:52,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-07-19 14:45:52,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1233, Unknown=3, NotChecked=142, Total=1482 [2022-07-19 14:45:52,196 INFO L87 Difference]: Start difference. First operand 72 states and 92 transitions. Second operand has 39 states, 39 states have (on average 3.8205128205128207) internal successors, (149), 39 states have internal predecessors, (149), 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) [2022-07-19 14:46:00,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:46:00,047 INFO L93 Difference]: Finished difference Result 180 states and 217 transitions. [2022-07-19 14:46:00,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-07-19 14:46:00,047 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.8205128205128207) internal successors, (149), 39 states have internal predecessors, (149), 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 56 [2022-07-19 14:46:00,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:46:00,048 INFO L225 Difference]: With dead ends: 180 [2022-07-19 14:46:00,048 INFO L226 Difference]: Without dead ends: 165 [2022-07-19 14:46:00,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 102 SyntacticMatches, 6 SemanticMatches, 83 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1409 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=950, Invalid=5861, Unknown=3, NotChecked=326, Total=7140 [2022-07-19 14:46:00,049 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 584 mSDsluCounter, 994 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 369 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 14:46:00,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 1048 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 487 Invalid, 0 Unknown, 369 Unchecked, 0.5s Time] [2022-07-19 14:46:00,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-07-19 14:46:00,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 104. [2022-07-19 14:46:00,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.2621359223300972) internal successors, (130), 103 states have internal predecessors, (130), 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) [2022-07-19 14:46:00,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 130 transitions. [2022-07-19 14:46:00,065 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 130 transitions. Word has length 56 [2022-07-19 14:46:00,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:46:00,065 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 130 transitions. [2022-07-19 14:46:00,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.8205128205128207) internal successors, (149), 39 states have internal predecessors, (149), 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) [2022-07-19 14:46:00,066 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 130 transitions. [2022-07-19 14:46:00,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-19 14:46:00,066 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:46:00,066 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:46:00,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-07-19 14:46:00,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:46:00,283 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:46:00,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:46:00,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1207256061, now seen corresponding path program 5 times [2022-07-19 14:46:00,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:46:00,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521643749] [2022-07-19 14:46:00,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:46:00,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:46:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:46:00,906 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 19 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:46:00,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:46:00,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521643749] [2022-07-19 14:46:00,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521643749] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:46:00,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169938901] [2022-07-19 14:46:00,906 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-19 14:46:00,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:46:00,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:46:00,907 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:46:00,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-19 14:46:01,832 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2022-07-19 14:46:01,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 14:46:01,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 112 conjunts are in the unsatisfiable core [2022-07-19 14:46:01,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:46:01,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:01,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:01,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:01,851 INFO L390 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 21 treesize of output 26 [2022-07-19 14:46:01,855 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:01,903 INFO L390 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 [2022-07-19 14:46:01,913 INFO L356 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-07-19 14:46:01,913 INFO L390 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 32 treesize of output 36 [2022-07-19 14:46:01,921 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-07-19 14:46:01,921 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 18 [2022-07-19 14:46:01,932 INFO L390 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 [2022-07-19 14:46:02,010 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:02,014 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:02,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:02,018 INFO L390 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 58 treesize of output 48 [2022-07-19 14:46:02,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:02,022 INFO L390 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 55 treesize of output 47 [2022-07-19 14:46:02,043 INFO L356 Elim1Store]: treesize reduction 100, result has 25.9 percent of original size [2022-07-19 14:46:02,043 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 34 treesize of output 49 [2022-07-19 14:46:02,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:02,047 INFO L390 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 [2022-07-19 14:46:02,167 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:02,171 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:02,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:02,175 INFO L390 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 63 treesize of output 53 [2022-07-19 14:46:02,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:02,187 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-19 14:46:02,187 INFO L390 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 118 treesize of output 82 [2022-07-19 14:46:02,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:02,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:02,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:02,199 INFO L356 Elim1Store]: treesize reduction 33, result has 32.7 percent of original size [2022-07-19 14:46:02,199 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 29 [2022-07-19 14:46:02,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:02,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:02,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:02,205 INFO L390 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 33 treesize of output 38 [2022-07-19 14:46:03,579 INFO L356 Elim1Store]: treesize reduction 77, result has 19.8 percent of original size [2022-07-19 14:46:03,580 INFO L390 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 199 treesize of output 113 [2022-07-19 14:46:03,600 INFO L356 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2022-07-19 14:46:03,600 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 34 [2022-07-19 14:46:03,703 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 21 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:46:03,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:46:04,109 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:04,110 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 180 treesize of output 165 [2022-07-19 14:46:04,114 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:04,114 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 159 treesize of output 144 [2022-07-19 14:46:04,127 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_81| Int) (v_arrayElimArr_187 (Array Int Int)) (v_arrayElimArr_186 (Array Int Int)) (v_ArrVal_1818 (Array Int Int))) (let ((.cse5 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_81| v_arrayElimArr_187)) (.cse6 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_81| v_arrayElimArr_186))) (let ((.cse0 (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_81| v_ArrVal_1818)) (.cse1 (select (select .cse6 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse2 (select (select .cse5 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse3 (select .cse0 (select (select .cse6 .cse1) .cse2))) (.cse4 (select (select .cse5 .cse1) .cse2))) (or (not (= (select (select .cse0 .cse1) (+ .cse2 4)) 0)) (not (= (select .cse3 (+ 4 .cse4)) 1)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_187 0))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_81|) 0)) (not (= 3 (select .cse3 (+ 8 .cse4)))) (not (= (select v_arrayElimArr_186 0) |c_ULTIMATE.start_main_~l~0#1.base|))))))) is different from false [2022-07-19 14:46:04,202 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:04,202 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 285 treesize of output 270 [2022-07-19 14:46:04,214 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:04,215 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 264 treesize of output 249 [2022-07-19 14:46:04,236 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_81| Int) (v_arrayElimArr_187 (Array Int Int)) (v_arrayElimArr_186 (Array Int Int)) (v_arrayElimArr_189 (Array Int Int)) (v_ArrVal_1807 (Array Int Int)) (v_ArrVal_1818 (Array Int Int)) (v_arrayElimArr_188 (Array Int Int))) (let ((.cse2 (select v_arrayElimArr_186 0))) (let ((.cse6 (store (store |c_#memory_$Pointer$.offset| .cse2 v_arrayElimArr_188) |v_ULTIMATE.start_main_~l~0#1.base_81| v_arrayElimArr_187)) (.cse7 (store (store |c_#memory_$Pointer$.base| .cse2 v_arrayElimArr_189) |v_ULTIMATE.start_main_~l~0#1.base_81| v_arrayElimArr_186))) (let ((.cse3 (store (store |c_#memory_int| .cse2 v_ArrVal_1807) |v_ULTIMATE.start_main_~l~0#1.base_81| v_ArrVal_1818)) (.cse4 (select (select .cse7 .cse2) 0)) (.cse5 (select (select .cse6 .cse2) 0))) (let ((.cse0 (select .cse3 (select (select .cse7 .cse4) .cse5))) (.cse1 (select (select .cse6 .cse4) .cse5))) (or (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_189 0))) (not (= (select .cse0 (+ .cse1 8)) 3)) (not (= (select (store |c_#valid| .cse2 1) |v_ULTIMATE.start_main_~l~0#1.base_81|) 0)) (not (= (select |c_#valid| .cse2) 0)) (not (= (select (select .cse3 .cse4) (+ .cse5 4)) 0)) (not (= 0 (select v_arrayElimArr_187 0))) (not (= (select .cse0 (+ .cse1 4)) 1)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_188 0))))))))) is different from false [2022-07-19 14:46:04,349 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:04,350 INFO L390 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 426 treesize of output 352 [2022-07-19 14:46:04,357 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:04,358 INFO L390 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 342 treesize of output 268 [2022-07-19 14:46:04,362 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:46:04,362 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:46:04,363 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:46:04,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:04,366 INFO L390 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 192 treesize of output 146 [2022-07-19 14:46:04,371 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:46:04,373 INFO L390 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 714 treesize of output 676 [2022-07-19 14:46:04,379 INFO L390 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 701 treesize of output 589 [2022-07-19 14:46:04,384 INFO L390 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 589 treesize of output 487 [2022-07-19 14:46:04,393 INFO L390 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 28 treesize of output 24 [2022-07-19 14:46:04,911 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_81| Int) (v_arrayElimCell_300 Int) (v_arrayElimCell_299 Int) (v_ArrVal_1807 (Array Int Int)) (v_ArrVal_1818 (Array Int Int)) (v_ArrVal_1805 (Array Int Int))) (let ((.cse2 (store (store (store |c_#memory_int| v_arrayElimCell_299 v_ArrVal_1805) v_arrayElimCell_300 v_ArrVal_1807) |v_ULTIMATE.start_main_~l~0#1.base_81| v_ArrVal_1818))) (let ((.cse0 (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|)) (.cse1 (store |c_#valid| v_arrayElimCell_299 1))) (or (not (= (select .cse0 (+ |c_ULTIMATE.start_main_~l~0#1.offset| 4)) 1)) (not (= (select (store .cse1 v_arrayElimCell_300 1) |v_ULTIMATE.start_main_~l~0#1.base_81|) 0)) (not (= 3 (select .cse0 (+ |c_ULTIMATE.start_main_~l~0#1.offset| 8)))) (not (= (select .cse1 v_arrayElimCell_300) 0)) (not (= 0 (select (select .cse2 v_arrayElimCell_299) 4))))))) is different from false [2022-07-19 14:46:04,978 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 21 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 24 not checked. [2022-07-19 14:46:04,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169938901] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:46:04,978 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:46:04,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 15, 15] total 43 [2022-07-19 14:46:04,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612156855] [2022-07-19 14:46:04,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:46:04,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-07-19 14:46:04,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:46:04,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-07-19 14:46:04,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1445, Unknown=3, NotChecked=234, Total=1806 [2022-07-19 14:46:04,980 INFO L87 Difference]: Start difference. First operand 104 states and 130 transitions. Second operand has 43 states, 43 states have (on average 3.4651162790697674) internal successors, (149), 43 states have internal predecessors, (149), 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) [2022-07-19 14:46:16,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:46:16,510 INFO L93 Difference]: Finished difference Result 196 states and 238 transitions. [2022-07-19 14:46:16,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-07-19 14:46:16,510 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 3.4651162790697674) internal successors, (149), 43 states have internal predecessors, (149), 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 56 [2022-07-19 14:46:16,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:46:16,511 INFO L225 Difference]: With dead ends: 196 [2022-07-19 14:46:16,511 INFO L226 Difference]: Without dead ends: 181 [2022-07-19 14:46:16,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 107 SyntacticMatches, 7 SemanticMatches, 87 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1543 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=1076, Invalid=6243, Unknown=3, NotChecked=510, Total=7832 [2022-07-19 14:46:16,512 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 451 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 528 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 14:46:16,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 1209 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 556 Invalid, 0 Unknown, 528 Unchecked, 0.6s Time] [2022-07-19 14:46:16,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-07-19 14:46:16,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 88. [2022-07-19 14:46:16,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 1.2758620689655173) internal successors, (111), 87 states have internal predecessors, (111), 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) [2022-07-19 14:46:16,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 111 transitions. [2022-07-19 14:46:16,522 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 111 transitions. Word has length 56 [2022-07-19 14:46:16,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:46:16,522 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 111 transitions. [2022-07-19 14:46:16,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 3.4651162790697674) internal successors, (149), 43 states have internal predecessors, (149), 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) [2022-07-19 14:46:16,523 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 111 transitions. [2022-07-19 14:46:16,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-19 14:46:16,523 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:46:16,523 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:46:16,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-19 14:46:16,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:46:16,727 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:46:16,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:46:16,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1403369475, now seen corresponding path program 6 times [2022-07-19 14:46:16,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:46:16,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814693534] [2022-07-19 14:46:16,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:46:16,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:46:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:46:17,189 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 18 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:46:17,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:46:17,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814693534] [2022-07-19 14:46:17,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814693534] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:46:17,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016089892] [2022-07-19 14:46:17,190 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-19 14:46:17,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:46:17,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:46:17,191 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:46:17,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-19 14:46:17,684 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-07-19 14:46:17,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 14:46:17,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 106 conjunts are in the unsatisfiable core [2022-07-19 14:46:17,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:46:17,695 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:17,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:17,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:17,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:17,701 INFO L390 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 21 treesize of output 26 [2022-07-19 14:46:17,748 INFO L390 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 [2022-07-19 14:46:17,753 INFO L390 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 [2022-07-19 14:46:17,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:17,758 INFO L390 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 [2022-07-19 14:46:17,773 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-19 14:46:17,773 INFO L390 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 29 [2022-07-19 14:46:17,853 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:17,856 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:17,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:17,870 INFO L390 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 59 treesize of output 49 [2022-07-19 14:46:17,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:17,874 INFO L390 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 [2022-07-19 14:46:17,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:17,888 INFO L356 Elim1Store]: treesize reduction 42, result has 38.2 percent of original size [2022-07-19 14:46:17,888 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 49 [2022-07-19 14:46:17,891 INFO L390 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 [2022-07-19 14:46:18,005 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:18,009 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:18,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:18,019 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-19 14:46:18,019 INFO L390 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 119 treesize of output 83 [2022-07-19 14:46:18,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:18,023 INFO L390 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 48 treesize of output 36 [2022-07-19 14:46:18,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:18,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:18,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:18,033 INFO L356 Elim1Store]: treesize reduction 4, result has 80.0 percent of original size [2022-07-19 14:46:18,033 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 29 [2022-07-19 14:46:18,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:18,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:18,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:18,038 INFO L390 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 33 treesize of output 38 [2022-07-19 14:46:19,106 INFO L356 Elim1Store]: treesize reduction 77, result has 19.8 percent of original size [2022-07-19 14:46:19,106 INFO L390 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 190 treesize of output 100 [2022-07-19 14:46:19,117 INFO L356 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2022-07-19 14:46:19,117 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 25 [2022-07-19 14:46:19,197 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 21 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:46:19,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:46:19,465 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:19,465 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 147 treesize of output 135 [2022-07-19 14:46:19,468 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:19,469 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 129 treesize of output 117 [2022-07-19 14:46:19,479 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_197 (Array Int Int)) (v_ArrVal_1995 (Array Int Int)) (v_arrayElimArr_196 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_88| Int)) (let ((.cse2 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_88| v_arrayElimArr_197)) (.cse5 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_88| v_arrayElimArr_196))) (let ((.cse3 (select (select .cse5 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse4 (select (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_88| v_ArrVal_1995) (select (select .cse5 .cse3) .cse4))) (.cse1 (select (select .cse2 .cse3) .cse4))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_88|) 0)) (not (= (select .cse0 (+ 8 .cse1)) 3)) (not (= (select .cse0 (+ .cse1 4)) 1)) (not (= (select v_arrayElimArr_196 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_197 0)))))))) is different from false [2022-07-19 14:46:19,528 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:19,529 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 233 treesize of output 221 [2022-07-19 14:46:19,533 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:19,533 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 215 treesize of output 203 [2022-07-19 14:46:19,551 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_198 (Array Int Int)) (v_arrayElimArr_197 (Array Int Int)) (v_ArrVal_1995 (Array Int Int)) (v_arrayElimArr_196 (Array Int Int)) (v_ArrVal_1981 (Array Int Int)) (v_arrayElimArr_199 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_88| Int)) (let ((.cse0 (select v_arrayElimArr_196 0))) (let ((.cse3 (store (store |c_#memory_$Pointer$.offset| .cse0 v_arrayElimArr_198) |v_ULTIMATE.start_main_~l~0#1.base_88| v_arrayElimArr_197)) (.cse6 (store (store |c_#memory_$Pointer$.base| .cse0 v_arrayElimArr_199) |v_ULTIMATE.start_main_~l~0#1.base_88| v_arrayElimArr_196))) (let ((.cse4 (select (select .cse6 .cse0) 0)) (.cse5 (select (select .cse3 .cse0) 0))) (let ((.cse1 (select (store (store |c_#memory_int| .cse0 v_ArrVal_1981) |v_ULTIMATE.start_main_~l~0#1.base_88| v_ArrVal_1995) (select (select .cse6 .cse4) .cse5))) (.cse2 (select (select .cse3 .cse4) .cse5))) (or (not (= (select v_arrayElimArr_197 0) 0)) (not (= (select v_arrayElimArr_198 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select |c_#valid| .cse0) 0)) (not (= (select v_arrayElimArr_199 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse1 (+ .cse2 8)) 3)) (not (= (select (store |c_#valid| .cse0 1) |v_ULTIMATE.start_main_~l~0#1.base_88|) 0)) (not (= (select .cse1 (+ .cse2 4)) 1)))))))) is different from false [2022-07-19 14:46:19,630 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:19,630 INFO L390 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 351 treesize of output 289 [2022-07-19 14:46:19,635 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:19,635 INFO L390 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 279 treesize of output 217 [2022-07-19 14:46:19,638 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:46:19,638 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:46:19,639 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:46:19,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:19,641 INFO L390 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 153 treesize of output 107 [2022-07-19 14:46:19,645 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:46:19,646 INFO L390 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 327 treesize of output 305 [2022-07-19 14:46:19,650 INFO L390 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 338 treesize of output 284 [2022-07-19 14:46:19,661 INFO L390 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 278 treesize of output 234 [2022-07-19 14:46:19,999 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 21 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 21 not checked. [2022-07-19 14:46:20,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016089892] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:46:20,000 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:46:20,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13, 13] total 36 [2022-07-19 14:46:20,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958511047] [2022-07-19 14:46:20,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:46:20,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-07-19 14:46:20,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:46:20,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-07-19 14:46:20,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=1033, Unknown=3, NotChecked=130, Total=1260 [2022-07-19 14:46:20,002 INFO L87 Difference]: Start difference. First operand 88 states and 111 transitions. Second operand has 36 states, 36 states have (on average 4.138888888888889) internal successors, (149), 36 states have internal predecessors, (149), 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) [2022-07-19 14:46:30,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:46:30,945 INFO L93 Difference]: Finished difference Result 156 states and 188 transitions. [2022-07-19 14:46:30,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-07-19 14:46:30,947 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 4.138888888888889) internal successors, (149), 36 states have internal predecessors, (149), 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 56 [2022-07-19 14:46:30,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:46:30,947 INFO L225 Difference]: With dead ends: 156 [2022-07-19 14:46:30,947 INFO L226 Difference]: Without dead ends: 141 [2022-07-19 14:46:30,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 101 SyntacticMatches, 6 SemanticMatches, 69 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=893, Invalid=3804, Unknown=3, NotChecked=270, Total=4970 [2022-07-19 14:46:30,948 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 390 mSDsluCounter, 1069 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 213 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 14:46:30,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 1119 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 582 Invalid, 0 Unknown, 213 Unchecked, 0.5s Time] [2022-07-19 14:46:30,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-07-19 14:46:30,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 88. [2022-07-19 14:46:30,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 1.2758620689655173) internal successors, (111), 87 states have internal predecessors, (111), 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) [2022-07-19 14:46:30,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 111 transitions. [2022-07-19 14:46:30,960 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 111 transitions. Word has length 56 [2022-07-19 14:46:30,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:46:30,960 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 111 transitions. [2022-07-19 14:46:30,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.138888888888889) internal successors, (149), 36 states have internal predecessors, (149), 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) [2022-07-19 14:46:30,961 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 111 transitions. [2022-07-19 14:46:30,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-19 14:46:30,961 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:46:30,961 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:46:30,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-19 14:46:31,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-07-19 14:46:31,175 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:46:31,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:46:31,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1209590471, now seen corresponding path program 7 times [2022-07-19 14:46:31,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:46:31,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736769894] [2022-07-19 14:46:31,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:46:31,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:46:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:46:31,593 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 19 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:46:31,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:46:31,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736769894] [2022-07-19 14:46:31,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736769894] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:46:31,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337630823] [2022-07-19 14:46:31,594 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-07-19 14:46:31,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:46:31,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:46:31,596 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:46:31,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-19 14:46:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:46:31,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 106 conjunts are in the unsatisfiable core [2022-07-19 14:46:31,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:46:31,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:31,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:31,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:31,833 INFO L390 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 21 treesize of output 26 [2022-07-19 14:46:31,837 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:31,882 INFO L390 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 [2022-07-19 14:46:31,896 INFO L390 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 [2022-07-19 14:46:31,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:31,900 INFO L390 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 [2022-07-19 14:46:31,914 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-19 14:46:31,914 INFO L390 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 29 [2022-07-19 14:46:31,997 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:32,010 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:32,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:32,015 INFO L390 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 59 treesize of output 49 [2022-07-19 14:46:32,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:32,029 INFO L356 Elim1Store]: treesize reduction 42, result has 38.2 percent of original size [2022-07-19 14:46:32,029 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 49 [2022-07-19 14:46:32,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:32,033 INFO L390 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 [2022-07-19 14:46:32,037 INFO L390 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 [2022-07-19 14:46:32,148 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:32,152 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:32,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:32,162 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-19 14:46:32,162 INFO L390 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 119 treesize of output 83 [2022-07-19 14:46:32,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:32,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:32,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:32,173 INFO L356 Elim1Store]: treesize reduction 4, result has 80.0 percent of original size [2022-07-19 14:46:32,173 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 29 [2022-07-19 14:46:32,176 INFO L390 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 48 treesize of output 36 [2022-07-19 14:46:32,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:32,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:32,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:32,181 INFO L390 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 33 treesize of output 38 [2022-07-19 14:46:33,214 INFO L356 Elim1Store]: treesize reduction 77, result has 19.8 percent of original size [2022-07-19 14:46:33,215 INFO L390 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 190 treesize of output 100 [2022-07-19 14:46:33,225 INFO L356 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2022-07-19 14:46:33,225 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 25 [2022-07-19 14:46:33,303 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 21 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:46:33,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:46:33,583 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:33,583 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 147 treesize of output 135 [2022-07-19 14:46:33,587 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:33,587 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 129 treesize of output 117 [2022-07-19 14:46:33,597 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_95| Int) (v_arrayElimArr_207 (Array Int Int)) (v_ArrVal_2169 (Array Int Int)) (v_arrayElimArr_206 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_95| v_arrayElimArr_207)) (.cse5 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_95| v_arrayElimArr_206))) (let ((.cse3 (select (select .cse5 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse4 (select (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_95| v_ArrVal_2169) (select (select .cse5 .cse3) .cse4))) (.cse1 (select (select .cse2 .cse3) .cse4))) (or (not (= (select .cse0 (+ .cse1 4)) 1)) (not (= (select v_arrayElimArr_206 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_207 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse0 (+ .cse1 8)) 3)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_95|) 0))))))) is different from false [2022-07-19 14:46:33,648 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:33,648 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 249 treesize of output 237 [2022-07-19 14:46:33,656 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:33,656 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:33,673 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_209 (Array Int Int)) (v_arrayElimArr_208 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_95| Int) (v_arrayElimArr_207 (Array Int Int)) (v_ArrVal_2169 (Array Int Int)) (v_arrayElimArr_206 (Array Int Int)) (v_ArrVal_2161 (Array Int Int))) (let ((.cse2 (select v_arrayElimArr_206 0))) (let ((.cse4 (store (store |c_#memory_$Pointer$.offset| .cse2 v_arrayElimArr_209) |v_ULTIMATE.start_main_~l~0#1.base_95| v_arrayElimArr_207)) (.cse7 (store (store |c_#memory_$Pointer$.base| .cse2 v_arrayElimArr_208) |v_ULTIMATE.start_main_~l~0#1.base_95| v_arrayElimArr_206)) (.cse3 (select v_arrayElimArr_207 0))) (let ((.cse5 (select (select .cse7 .cse2) .cse3)) (.cse6 (select (select .cse4 .cse2) .cse3))) (let ((.cse0 (select (store (store |c_#memory_int| .cse2 v_ArrVal_2161) |v_ULTIMATE.start_main_~l~0#1.base_95| v_ArrVal_2169) (select (select .cse7 .cse5) .cse6))) (.cse1 (select (select .cse4 .cse5) .cse6))) (or (not (= (select v_arrayElimArr_209 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse0 (+ .cse1 8)) 3)) (not (= (select v_arrayElimArr_208 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select |c_#valid| .cse2) 0)) (not (= .cse3 0)) (not (= (select .cse0 (+ .cse1 4)) 1)) (not (= (select (store |c_#valid| .cse2 1) |v_ULTIMATE.start_main_~l~0#1.base_95|) 0)))))))) is different from false [2022-07-19 14:46:33,758 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:33,758 INFO L390 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 367 treesize of output 305 [2022-07-19 14:46:33,763 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:33,763 INFO L390 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 295 treesize of output 233 [2022-07-19 14:46:33,766 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:46:33,766 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:46:33,767 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:46:33,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:33,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:33,769 INFO L390 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 169 treesize of output 115 [2022-07-19 14:46:33,772 INFO L390 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 158 treesize of output 138 [2022-07-19 14:46:33,775 INFO L390 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 124 treesize of output 104 [2022-07-19 14:46:33,777 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:46:33,777 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:46:33,778 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:46:33,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:33,780 INFO L390 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 63 treesize of output 43 [2022-07-19 14:46:33,890 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 21 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 21 not checked. [2022-07-19 14:46:33,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337630823] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:46:33,891 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:46:33,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13, 13] total 36 [2022-07-19 14:46:33,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113137494] [2022-07-19 14:46:33,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:46:33,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-07-19 14:46:33,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:46:33,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-07-19 14:46:33,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1033, Unknown=2, NotChecked=130, Total=1260 [2022-07-19 14:46:33,892 INFO L87 Difference]: Start difference. First operand 88 states and 111 transitions. Second operand has 36 states, 36 states have (on average 4.138888888888889) internal successors, (149), 36 states have internal predecessors, (149), 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) [2022-07-19 14:46:45,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:46:45,337 INFO L93 Difference]: Finished difference Result 154 states and 187 transitions. [2022-07-19 14:46:45,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-07-19 14:46:45,337 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 4.138888888888889) internal successors, (149), 36 states have internal predecessors, (149), 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 56 [2022-07-19 14:46:45,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:46:45,338 INFO L225 Difference]: With dead ends: 154 [2022-07-19 14:46:45,338 INFO L226 Difference]: Without dead ends: 139 [2022-07-19 14:46:45,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 100 SyntacticMatches, 7 SemanticMatches, 68 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 859 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=901, Invalid=3661, Unknown=2, NotChecked=266, Total=4830 [2022-07-19 14:46:45,339 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 406 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 344 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 14:46:45,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 775 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 389 Invalid, 0 Unknown, 344 Unchecked, 0.4s Time] [2022-07-19 14:46:45,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-07-19 14:46:45,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 80. [2022-07-19 14:46:45,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.2784810126582278) internal successors, (101), 79 states have internal predecessors, (101), 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) [2022-07-19 14:46:45,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 101 transitions. [2022-07-19 14:46:45,350 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 101 transitions. Word has length 56 [2022-07-19 14:46:45,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:46:45,350 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 101 transitions. [2022-07-19 14:46:45,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.138888888888889) internal successors, (149), 36 states have internal predecessors, (149), 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) [2022-07-19 14:46:45,351 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 101 transitions. [2022-07-19 14:46:45,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-19 14:46:45,351 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:46:45,351 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:46:45,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-19 14:46:45,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:46:45,556 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:46:45,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:46:45,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1512229753, now seen corresponding path program 3 times [2022-07-19 14:46:45,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:46:45,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814278226] [2022-07-19 14:46:45,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:46:45,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:46:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:46:45,892 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:46:45,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:46:45,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814278226] [2022-07-19 14:46:45,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814278226] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:46:45,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493633495] [2022-07-19 14:46:45,893 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-19 14:46:45,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:46:45,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:46:45,895 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:46:45,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-19 14:46:46,344 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-07-19 14:46:46,345 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 14:46:46,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 110 conjunts are in the unsatisfiable core [2022-07-19 14:46:46,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:46:46,356 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:46,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:46,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:46,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:46,361 INFO L390 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 21 treesize of output 26 [2022-07-19 14:46:46,389 INFO L390 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 [2022-07-19 14:46:46,393 INFO L390 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 [2022-07-19 14:46:46,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:46,396 INFO L390 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 [2022-07-19 14:46:46,407 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-19 14:46:46,407 INFO L390 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 29 [2022-07-19 14:46:46,508 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:46,512 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:46,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:46,517 INFO L390 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 59 treesize of output 49 [2022-07-19 14:46:46,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:46,522 INFO L390 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 [2022-07-19 14:46:46,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:46,535 INFO L356 Elim1Store]: treesize reduction 42, result has 38.2 percent of original size [2022-07-19 14:46:46,536 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 49 [2022-07-19 14:46:46,538 INFO L390 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 [2022-07-19 14:46:46,649 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:46,653 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:46,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:46,664 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-19 14:46:46,664 INFO L390 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 119 treesize of output 83 [2022-07-19 14:46:46,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:46,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:46,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:46,674 INFO L356 Elim1Store]: treesize reduction 4, result has 80.0 percent of original size [2022-07-19 14:46:46,674 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 29 [2022-07-19 14:46:46,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:46,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:46,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:46,679 INFO L390 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 33 treesize of output 38 [2022-07-19 14:46:46,682 INFO L390 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 48 treesize of output 36 [2022-07-19 14:46:47,710 INFO L356 Elim1Store]: treesize reduction 77, result has 19.8 percent of original size [2022-07-19 14:46:47,710 INFO L390 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 190 treesize of output 100 [2022-07-19 14:46:47,721 INFO L356 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2022-07-19 14:46:47,721 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 25 [2022-07-19 14:46:47,798 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:46:47,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:46:47,923 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:47,923 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 147 treesize of output 135 [2022-07-19 14:46:47,927 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:47,927 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 129 treesize of output 117 [2022-07-19 14:46:47,937 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_102| Int) (v_ArrVal_2345 (Array Int Int)) (v_arrayElimArr_217 (Array Int Int)) (v_arrayElimArr_216 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_102| v_arrayElimArr_217)) (.cse5 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_102| v_arrayElimArr_216))) (let ((.cse3 (select (select .cse5 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse4 (select (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_102| v_ArrVal_2345) (select (select .cse5 .cse3) .cse4))) (.cse1 (select (select .cse2 .cse3) .cse4))) (or (not (= (select .cse0 (+ .cse1 4)) 0)) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_216 0))) (not (= (select v_arrayElimArr_217 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_102|) 0)) (not (= 2 (select .cse0 (+ .cse1 8))))))))) is different from false [2022-07-19 14:46:47,986 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:47,986 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 233 treesize of output 221 [2022-07-19 14:46:47,993 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:47,994 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 215 treesize of output 203 [2022-07-19 14:46:48,011 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_219 (Array Int Int)) (v_arrayElimArr_218 (Array Int Int)) (v_ArrVal_2336 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_102| Int) (v_ArrVal_2345 (Array Int Int)) (v_arrayElimArr_217 (Array Int Int)) (v_arrayElimArr_216 (Array Int Int))) (let ((.cse2 (select v_arrayElimArr_216 0))) (let ((.cse3 (store (store |c_#memory_$Pointer$.offset| .cse2 v_arrayElimArr_218) |v_ULTIMATE.start_main_~l~0#1.base_102| v_arrayElimArr_217)) (.cse6 (store (store |c_#memory_$Pointer$.base| .cse2 v_arrayElimArr_219) |v_ULTIMATE.start_main_~l~0#1.base_102| v_arrayElimArr_216))) (let ((.cse4 (select (select .cse6 .cse2) 0)) (.cse5 (select (select .cse3 .cse2) 0))) (let ((.cse0 (select (store (store |c_#memory_int| .cse2 v_ArrVal_2336) |v_ULTIMATE.start_main_~l~0#1.base_102| v_ArrVal_2345) (select (select .cse6 .cse4) .cse5))) (.cse1 (select (select .cse3 .cse4) .cse5))) (or (not (= (select .cse0 (+ .cse1 4)) 0)) (not (= 2 (select .cse0 (+ .cse1 8)))) (not (= (select (store |c_#valid| .cse2 1) |v_ULTIMATE.start_main_~l~0#1.base_102|) 0)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_218 0))) (not (= (select |c_#valid| .cse2) 0)) (not (= (select v_arrayElimArr_217 0) 0)) (not (= (select v_arrayElimArr_219 0) |c_ULTIMATE.start_main_~l~0#1.base|)))))))) is different from false [2022-07-19 14:46:48,091 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:48,091 INFO L390 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 351 treesize of output 289 [2022-07-19 14:46:48,097 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:48,097 INFO L390 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 279 treesize of output 217 [2022-07-19 14:46:48,100 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:46:48,100 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:46:48,101 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:46:48,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:48,103 INFO L390 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 153 treesize of output 107 [2022-07-19 14:46:48,107 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:46:48,109 INFO L390 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 687 treesize of output 649 [2022-07-19 14:46:48,113 INFO L390 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 682 treesize of output 572 [2022-07-19 14:46:48,117 INFO L390 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 566 treesize of output 466 [2022-07-19 14:46:48,609 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-07-19 14:46:48,609 INFO L390 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 63 treesize of output 1 [2022-07-19 14:46:48,610 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 21 not checked. [2022-07-19 14:46:48,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493633495] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:46:48,610 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:46:48,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13, 13] total 29 [2022-07-19 14:46:48,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331837030] [2022-07-19 14:46:48,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:46:48,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-07-19 14:46:48,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:46:48,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-07-19 14:46:48,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=627, Unknown=3, NotChecked=102, Total=812 [2022-07-19 14:46:48,612 INFO L87 Difference]: Start difference. First operand 80 states and 101 transitions. Second operand has 29 states, 29 states have (on average 4.379310344827586) internal successors, (127), 29 states have internal predecessors, (127), 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) [2022-07-19 14:46:50,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:46:50,119 INFO L93 Difference]: Finished difference Result 116 states and 141 transitions. [2022-07-19 14:46:50,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-19 14:46:50,119 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.379310344827586) internal successors, (127), 29 states have internal predecessors, (127), 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 58 [2022-07-19 14:46:50,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:46:50,120 INFO L225 Difference]: With dead ends: 116 [2022-07-19 14:46:50,120 INFO L226 Difference]: Without dead ends: 114 [2022-07-19 14:46:50,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 106 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=337, Invalid=1648, Unknown=3, NotChecked=174, Total=2162 [2022-07-19 14:46:50,121 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 86 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 233 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 14:46:50,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 756 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 337 Invalid, 0 Unknown, 233 Unchecked, 0.3s Time] [2022-07-19 14:46:50,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-07-19 14:46:50,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 99. [2022-07-19 14:46:50,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.2653061224489797) internal successors, (124), 98 states have internal predecessors, (124), 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) [2022-07-19 14:46:50,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 124 transitions. [2022-07-19 14:46:50,131 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 124 transitions. Word has length 58 [2022-07-19 14:46:50,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:46:50,132 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 124 transitions. [2022-07-19 14:46:50,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.379310344827586) internal successors, (127), 29 states have internal predecessors, (127), 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) [2022-07-19 14:46:50,132 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 124 transitions. [2022-07-19 14:46:50,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-19 14:46:50,132 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:46:50,132 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-19 14:46:50,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-19 14:46:50,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:46:50,348 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:46:50,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:46:50,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1244708427, now seen corresponding path program 4 times [2022-07-19 14:46:50,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:46:50,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781038319] [2022-07-19 14:46:50,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:46:50,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:46:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:46:50,897 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 15 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:46:50,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:46:50,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781038319] [2022-07-19 14:46:50,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781038319] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:46:50,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127675571] [2022-07-19 14:46:50,897 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-19 14:46:50,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:46:50,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:46:50,899 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:46:50,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-19 14:46:51,107 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-19 14:46:51,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 14:46:51,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 110 conjunts are in the unsatisfiable core [2022-07-19 14:46:51,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:46:51,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:51,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:51,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:51,120 INFO L390 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 21 treesize of output 26 [2022-07-19 14:46:51,124 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:51,151 INFO L390 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 [2022-07-19 14:46:51,155 INFO L390 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 [2022-07-19 14:46:51,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:51,158 INFO L390 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 [2022-07-19 14:46:51,169 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-19 14:46:51,169 INFO L390 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 29 [2022-07-19 14:46:51,251 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:51,254 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:51,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:51,258 INFO L390 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 [2022-07-19 14:46:51,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:51,262 INFO L390 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 59 treesize of output 49 [2022-07-19 14:46:51,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:51,266 INFO L390 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 [2022-07-19 14:46:51,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:51,278 INFO L356 Elim1Store]: treesize reduction 42, result has 38.2 percent of original size [2022-07-19 14:46:51,279 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 49 [2022-07-19 14:46:51,401 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:51,406 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:51,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:51,411 INFO L390 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 44 treesize of output 34 [2022-07-19 14:46:51,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:51,423 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-19 14:46:51,424 INFO L390 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 119 treesize of output 83 [2022-07-19 14:46:51,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:51,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:51,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:51,440 INFO L356 Elim1Store]: treesize reduction 4, result has 80.0 percent of original size [2022-07-19 14:46:51,440 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 29 [2022-07-19 14:46:51,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:51,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:51,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:51,446 INFO L390 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 33 treesize of output 38 [2022-07-19 14:46:52,495 INFO L356 Elim1Store]: treesize reduction 77, result has 19.8 percent of original size [2022-07-19 14:46:52,496 INFO L390 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 190 treesize of output 100 [2022-07-19 14:46:52,509 INFO L356 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2022-07-19 14:46:52,509 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 25 [2022-07-19 14:46:52,596 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:46:52,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:46:52,810 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:52,810 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 147 treesize of output 135 [2022-07-19 14:46:52,813 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:52,814 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 129 treesize of output 117 [2022-07-19 14:46:52,824 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_109| Int) (v_arrayElimArr_228 (Array Int Int)) (v_arrayElimArr_227 (Array Int Int)) (v_ArrVal_2518 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_109| v_arrayElimArr_228)) (.cse5 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_109| v_arrayElimArr_227))) (let ((.cse3 (select (select .cse5 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse4 (select (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_109| v_ArrVal_2518) (select (select .cse5 .cse3) .cse4))) (.cse1 (select (select .cse2 .cse3) .cse4))) (or (not (= 0 (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_109|))) (not (= (select .cse0 (+ .cse1 8)) 2)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_228 0))) (not (= (select .cse0 (+ .cse1 4)) 0)) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_227 0)))))))) is different from false [2022-07-19 14:46:52,873 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:52,874 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 233 treesize of output 221 [2022-07-19 14:46:52,878 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:52,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 215 treesize of output 203 [2022-07-19 14:46:52,896 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_109| Int) (v_ArrVal_2505 (Array Int Int)) (v_arrayElimArr_229 (Array Int Int)) (v_arrayElimArr_230 (Array Int Int)) (v_arrayElimArr_228 (Array Int Int)) (v_arrayElimArr_227 (Array Int Int)) (v_ArrVal_2518 (Array Int Int))) (let ((.cse2 (select v_arrayElimArr_227 0))) (let ((.cse3 (store (store |c_#memory_$Pointer$.offset| .cse2 v_arrayElimArr_229) |v_ULTIMATE.start_main_~l~0#1.base_109| v_arrayElimArr_228)) (.cse6 (store (store |c_#memory_$Pointer$.base| .cse2 v_arrayElimArr_230) |v_ULTIMATE.start_main_~l~0#1.base_109| v_arrayElimArr_227))) (let ((.cse4 (select (select .cse6 .cse2) 0)) (.cse5 (select (select .cse3 .cse2) 0))) (let ((.cse0 (select (store (store |c_#memory_int| .cse2 v_ArrVal_2505) |v_ULTIMATE.start_main_~l~0#1.base_109| v_ArrVal_2518) (select (select .cse6 .cse4) .cse5))) (.cse1 (select (select .cse3 .cse4) .cse5))) (or (not (= 2 (select .cse0 (+ .cse1 8)))) (not (= (select v_arrayElimArr_230 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_229 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= 0 (select .cse0 (+ .cse1 4)))) (not (= (select (store |c_#valid| .cse2 1) |v_ULTIMATE.start_main_~l~0#1.base_109|) 0)) (not (= 0 (select v_arrayElimArr_228 0))) (not (= (select |c_#valid| .cse2) 0)))))))) is different from false [2022-07-19 14:46:52,988 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:52,989 INFO L390 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 351 treesize of output 289 [2022-07-19 14:46:52,994 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:46:52,994 INFO L390 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 279 treesize of output 217 [2022-07-19 14:46:52,996 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:46:52,997 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:46:52,997 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:46:52,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:52,999 INFO L390 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 153 treesize of output 107 [2022-07-19 14:46:53,005 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:46:53,006 INFO L390 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 327 treesize of output 305 [2022-07-19 14:46:53,010 INFO L390 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 338 treesize of output 284 [2022-07-19 14:46:53,012 INFO L390 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 278 treesize of output 234 [2022-07-19 14:46:53,273 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-07-19 14:46:53,273 INFO L390 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 63 treesize of output 1 [2022-07-19 14:46:53,274 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 21 not checked. [2022-07-19 14:46:53,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127675571] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:46:53,275 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:46:53,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 13, 13] total 35 [2022-07-19 14:46:53,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685665838] [2022-07-19 14:46:53,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:46:53,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-07-19 14:46:53,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:46:53,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-07-19 14:46:53,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=961, Unknown=7, NotChecked=126, Total=1190 [2022-07-19 14:46:53,276 INFO L87 Difference]: Start difference. First operand 99 states and 124 transitions. Second operand has 35 states, 35 states have (on average 4.228571428571429) internal successors, (148), 35 states have internal predecessors, (148), 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) [2022-07-19 14:46:56,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:46:56,937 INFO L93 Difference]: Finished difference Result 164 states and 196 transitions. [2022-07-19 14:46:56,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-07-19 14:46:56,937 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 4.228571428571429) internal successors, (148), 35 states have internal predecessors, (148), 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 58 [2022-07-19 14:46:56,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:46:56,938 INFO L225 Difference]: With dead ends: 164 [2022-07-19 14:46:56,938 INFO L226 Difference]: Without dead ends: 162 [2022-07-19 14:46:56,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 107 SyntacticMatches, 5 SemanticMatches, 68 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 992 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=808, Invalid=3749, Unknown=7, NotChecked=266, Total=4830 [2022-07-19 14:46:56,939 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 278 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 242 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 14:46:56,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 744 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 530 Invalid, 0 Unknown, 242 Unchecked, 0.5s Time] [2022-07-19 14:46:56,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-07-19 14:46:56,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 99. [2022-07-19 14:46:56,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.2653061224489797) internal successors, (124), 98 states have internal predecessors, (124), 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) [2022-07-19 14:46:56,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 124 transitions. [2022-07-19 14:46:56,952 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 124 transitions. Word has length 58 [2022-07-19 14:46:56,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:46:56,952 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 124 transitions. [2022-07-19 14:46:56,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 4.228571428571429) internal successors, (148), 35 states have internal predecessors, (148), 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) [2022-07-19 14:46:56,952 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 124 transitions. [2022-07-19 14:46:56,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-19 14:46:56,953 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:46:56,953 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-19 14:46:56,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-19 14:46:57,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:46:57,164 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:46:57,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:46:57,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1794947659, now seen corresponding path program 5 times [2022-07-19 14:46:57,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:46:57,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901841630] [2022-07-19 14:46:57,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:46:57,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:46:57,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:46:57,503 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 15 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:46:57,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:46:57,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901841630] [2022-07-19 14:46:57,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901841630] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:46:57,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968385007] [2022-07-19 14:46:57,504 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-19 14:46:57,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:46:57,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:46:57,508 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:46:57,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-19 14:46:58,574 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2022-07-19 14:46:58,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 14:46:58,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 124 conjunts are in the unsatisfiable core [2022-07-19 14:46:58,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:46:58,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:58,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:58,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:58,593 INFO L390 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 21 treesize of output 26 [2022-07-19 14:46:58,599 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:58,631 INFO L390 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 [2022-07-19 14:46:58,635 INFO L390 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 [2022-07-19 14:46:58,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:58,638 INFO L390 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 [2022-07-19 14:46:58,649 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-19 14:46:58,649 INFO L390 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 29 [2022-07-19 14:46:58,724 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:58,728 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:58,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:58,731 INFO L390 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 59 treesize of output 49 [2022-07-19 14:46:58,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:58,735 INFO L390 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 [2022-07-19 14:46:58,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:58,739 INFO L390 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 [2022-07-19 14:46:58,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:58,751 INFO L356 Elim1Store]: treesize reduction 42, result has 38.2 percent of original size [2022-07-19 14:46:58,751 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 49 [2022-07-19 14:46:58,862 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:58,866 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:46:58,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:58,876 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-19 14:46:58,877 INFO L390 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 119 treesize of output 83 [2022-07-19 14:46:58,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:58,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:58,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:58,887 INFO L356 Elim1Store]: treesize reduction 4, result has 80.0 percent of original size [2022-07-19 14:46:58,887 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 29 [2022-07-19 14:46:58,890 INFO L390 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 48 treesize of output 36 [2022-07-19 14:46:58,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:58,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:58,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:46:58,895 INFO L390 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 33 treesize of output 38 [2022-07-19 14:47:00,386 INFO L356 Elim1Store]: treesize reduction 85, result has 11.5 percent of original size [2022-07-19 14:47:00,386 INFO L390 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 240 treesize of output 122 [2022-07-19 14:47:00,405 INFO L356 Elim1Store]: treesize reduction 74, result has 8.6 percent of original size [2022-07-19 14:47:00,405 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 67 treesize of output 43 [2022-07-19 14:47:00,588 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:47:00,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:47:01,064 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:01,065 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 180 treesize of output 165 [2022-07-19 14:47:01,069 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:01,069 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 159 treesize of output 144 [2022-07-19 14:47:01,085 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_116| Int) (v_ArrVal_2687 (Array Int Int)) (v_arrayElimArr_239 (Array Int Int)) (v_arrayElimArr_238 (Array Int Int))) (let ((.cse5 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_116| v_arrayElimArr_239)) (.cse6 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_116| v_arrayElimArr_238))) (let ((.cse2 (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_116| v_ArrVal_2687)) (.cse3 (select (select .cse6 |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 ((.cse0 (select .cse2 (select (select .cse6 .cse3) .cse4))) (.cse1 (select (select .cse5 .cse3) .cse4))) (or (not (= (select .cse0 (+ .cse1 4)) 0)) (not (= (select v_arrayElimArr_238 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_ArrVal_2687 4) 1)) (not (= (select (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|) (+ |c_ULTIMATE.start_main_~l~0#1.offset| 4)) 0)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_116|) 0)) (not (= (select v_arrayElimArr_239 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse0 (+ .cse1 8)) 2)) (not (= (select (select .cse2 .cse3) (+ .cse4 4)) 1))))))) is different from false [2022-07-19 14:47:01,172 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:01,172 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 285 treesize of output 270 [2022-07-19 14:47:01,181 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:01,181 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 264 treesize of output 249 [2022-07-19 14:47:01,206 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_241 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_116| Int) (v_ArrVal_2677 (Array Int Int)) (v_arrayElimArr_240 (Array Int Int)) (v_ArrVal_2687 (Array Int Int)) (v_arrayElimArr_239 (Array Int Int)) (v_arrayElimArr_238 (Array Int Int))) (let ((.cse5 (select v_arrayElimArr_238 0))) (let ((.cse6 (store (store |c_#memory_$Pointer$.offset| .cse5 v_arrayElimArr_241) |v_ULTIMATE.start_main_~l~0#1.base_116| v_arrayElimArr_239)) (.cse7 (store (store |c_#memory_$Pointer$.base| .cse5 v_arrayElimArr_240) |v_ULTIMATE.start_main_~l~0#1.base_116| v_arrayElimArr_238))) (let ((.cse0 (store (store |c_#memory_int| .cse5 v_ArrVal_2677) |v_ULTIMATE.start_main_~l~0#1.base_116| v_ArrVal_2687)) (.cse1 (select (select .cse7 .cse5) 0)) (.cse2 (select (select .cse6 .cse5) 0))) (let ((.cse3 (select .cse0 (select (select .cse7 .cse1) .cse2))) (.cse4 (select (select .cse6 .cse1) .cse2))) (or (not (= (select (select .cse0 .cse1) (+ .cse2 4)) 1)) (not (= (select v_arrayElimArr_240 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_239 0) 0)) (not (= (select v_ArrVal_2687 4) 1)) (not (= (select .cse3 (+ .cse4 8)) 2)) (not (= (select v_arrayElimArr_241 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select (select .cse0 .cse5) 4) 0)) (not (= (select .cse3 (+ .cse4 4)) 0)) (not (= (select |c_#valid| .cse5) 0)) (not (= (select (store |c_#valid| .cse5 1) |v_ULTIMATE.start_main_~l~0#1.base_116|) 0)))))))) is different from false [2022-07-19 14:47:01,334 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:01,335 INFO L390 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 426 treesize of output 352 [2022-07-19 14:47:01,341 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:01,341 INFO L390 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 342 treesize of output 268 [2022-07-19 14:47:01,344 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:01,344 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:01,345 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:01,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:01,347 INFO L390 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 192 treesize of output 146 [2022-07-19 14:47:01,352 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:01,354 INFO L390 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 354 treesize of output 332 [2022-07-19 14:47:01,359 INFO L390 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 388 treesize of output 328 [2022-07-19 14:47:01,362 INFO L390 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 322 treesize of output 272 [2022-07-19 14:47:01,367 INFO L390 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 28 treesize of output 24 [2022-07-19 14:47:01,644 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_461 Int) (v_arrayElimCell_460 Int) (v_ArrVal_2677 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_116| Int) (v_ArrVal_2687 (Array Int Int)) (v_ArrVal_2672 (Array Int Int))) (let ((.cse2 (store (store (store |c_#memory_int| v_arrayElimCell_460 v_ArrVal_2672) v_arrayElimCell_461 v_ArrVal_2677) |v_ULTIMATE.start_main_~l~0#1.base_116| v_ArrVal_2687))) (let ((.cse0 (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|)) (.cse1 (store |c_#valid| v_arrayElimCell_460 1))) (or (not (= (select .cse0 (+ |c_ULTIMATE.start_main_~l~0#1.offset| 4)) 0)) (not (= (select (store .cse1 v_arrayElimCell_461 1) |v_ULTIMATE.start_main_~l~0#1.base_116|) 0)) (not (= (select (select .cse2 v_arrayElimCell_460) 4) 1)) (not (= (select (select .cse2 v_arrayElimCell_461) 4) 0)) (not (= (select |c_#valid| v_arrayElimCell_460) 0)) (not (= 2 (select .cse0 (+ |c_ULTIMATE.start_main_~l~0#1.offset| 8)))) (not (= (select .cse1 v_arrayElimCell_461) 0)) (not (= (select v_ArrVal_2687 4) 1)))))) is different from false [2022-07-19 14:47:01,724 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 24 not checked. [2022-07-19 14:47:01,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968385007] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:47:01,724 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:47:01,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 19] total 44 [2022-07-19 14:47:01,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859003600] [2022-07-19 14:47:01,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:47:01,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-07-19 14:47:01,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:47:01,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-07-19 14:47:01,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=1474, Unknown=3, NotChecked=240, Total=1892 [2022-07-19 14:47:01,726 INFO L87 Difference]: Start difference. First operand 99 states and 124 transitions. Second operand has 44 states, 44 states have (on average 3.3636363636363638) internal successors, (148), 44 states have internal predecessors, (148), 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) [2022-07-19 14:47:10,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:47:10,502 INFO L93 Difference]: Finished difference Result 281 states and 337 transitions. [2022-07-19 14:47:10,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-07-19 14:47:10,502 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 3.3636363636363638) internal successors, (148), 44 states have internal predecessors, (148), 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 58 [2022-07-19 14:47:10,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:47:10,503 INFO L225 Difference]: With dead ends: 281 [2022-07-19 14:47:10,504 INFO L226 Difference]: Without dead ends: 279 [2022-07-19 14:47:10,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 122 SyntacticMatches, 6 SemanticMatches, 121 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 4431 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=2371, Invalid=11918, Unknown=3, NotChecked=714, Total=15006 [2022-07-19 14:47:10,505 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 465 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 1552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 522 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 14:47:10,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 861 Invalid, 1552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 706 Invalid, 0 Unknown, 522 Unchecked, 0.7s Time] [2022-07-19 14:47:10,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-07-19 14:47:10,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 104. [2022-07-19 14:47:10,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.2718446601941749) internal successors, (131), 103 states have internal predecessors, (131), 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) [2022-07-19 14:47:10,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 131 transitions. [2022-07-19 14:47:10,523 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 131 transitions. Word has length 58 [2022-07-19 14:47:10,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:47:10,524 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 131 transitions. [2022-07-19 14:47:10,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 3.3636363636363638) internal successors, (148), 44 states have internal predecessors, (148), 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) [2022-07-19 14:47:10,524 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 131 transitions. [2022-07-19 14:47:10,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-19 14:47:10,525 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:47:10,525 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:47:10,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-07-19 14:47:10,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-07-19 14:47:10,743 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:47:10,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:47:10,744 INFO L85 PathProgramCache]: Analyzing trace with hash 256918543, now seen corresponding path program 6 times [2022-07-19 14:47:10,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:47:10,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370605161] [2022-07-19 14:47:10,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:47:10,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:47:10,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:47:11,143 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:47:11,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:47:11,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370605161] [2022-07-19 14:47:11,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370605161] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:47:11,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035045921] [2022-07-19 14:47:11,144 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-19 14:47:11,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:47:11,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:47:11,145 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:47:11,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-07-19 14:47:11,480 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-07-19 14:47:11,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 14:47:11,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 108 conjunts are in the unsatisfiable core [2022-07-19 14:47:11,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:47:11,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:11,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:11,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:11,503 INFO L390 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 21 treesize of output 26 [2022-07-19 14:47:11,507 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:11,556 INFO L390 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 [2022-07-19 14:47:11,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:11,559 INFO L390 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 [2022-07-19 14:47:11,571 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-19 14:47:11,572 INFO L390 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 29 [2022-07-19 14:47:11,580 INFO L390 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 [2022-07-19 14:47:11,671 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:11,675 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:11,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:11,679 INFO L390 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 59 treesize of output 49 [2022-07-19 14:47:11,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:11,684 INFO L390 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 [2022-07-19 14:47:11,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:11,699 INFO L356 Elim1Store]: treesize reduction 42, result has 38.2 percent of original size [2022-07-19 14:47:11,699 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 49 [2022-07-19 14:47:11,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:11,704 INFO L390 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 [2022-07-19 14:47:11,832 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:11,836 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:11,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:11,847 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-19 14:47:11,848 INFO L390 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 119 treesize of output 83 [2022-07-19 14:47:11,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:11,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:11,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:11,854 INFO L390 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 33 treesize of output 38 [2022-07-19 14:47:11,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:11,858 INFO L390 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 48 treesize of output 36 [2022-07-19 14:47:11,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:11,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:11,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:11,867 INFO L356 Elim1Store]: treesize reduction 4, result has 80.0 percent of original size [2022-07-19 14:47:11,867 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 29 [2022-07-19 14:47:12,869 INFO L356 Elim1Store]: treesize reduction 77, result has 19.8 percent of original size [2022-07-19 14:47:12,870 INFO L390 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 190 treesize of output 100 [2022-07-19 14:47:12,880 INFO L356 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2022-07-19 14:47:12,880 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 25 [2022-07-19 14:47:12,958 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:47:12,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:47:13,082 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:13,082 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 147 treesize of output 135 [2022-07-19 14:47:13,085 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:13,085 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 129 treesize of output 117 [2022-07-19 14:47:13,096 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2867 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_123| Int) (v_arrayElimArr_249 (Array Int Int)) (v_arrayElimArr_248 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_123| v_arrayElimArr_249)) (.cse5 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_123| v_arrayElimArr_248))) (let ((.cse3 (select (select .cse5 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse4 (select (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_123| v_ArrVal_2867) (select (select .cse5 .cse3) .cse4))) (.cse1 (select (select .cse2 .cse3) .cse4))) (or (not (= 0 (select .cse0 (+ .cse1 4)))) (not (= (select v_arrayElimArr_249 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_123|) 0)) (not (= (select .cse0 (+ .cse1 8)) 2)) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_248 0)))))))) is different from false [2022-07-19 14:47:13,144 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:13,144 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 233 treesize of output 221 [2022-07-19 14:47:13,148 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:13,148 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 215 treesize of output 203 [2022-07-19 14:47:13,165 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2867 (Array Int Int)) (v_arrayElimArr_251 (Array Int Int)) (v_arrayElimArr_250 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_123| Int) (v_ArrVal_2860 (Array Int Int)) (v_arrayElimArr_249 (Array Int Int)) (v_arrayElimArr_248 (Array Int Int))) (let ((.cse0 (select v_arrayElimArr_248 0))) (let ((.cse3 (store (store |c_#memory_$Pointer$.offset| .cse0 v_arrayElimArr_250) |v_ULTIMATE.start_main_~l~0#1.base_123| v_arrayElimArr_249)) (.cse6 (store (store |c_#memory_$Pointer$.base| .cse0 v_arrayElimArr_251) |v_ULTIMATE.start_main_~l~0#1.base_123| v_arrayElimArr_248))) (let ((.cse4 (select (select .cse6 .cse0) 0)) (.cse5 (select (select .cse3 .cse0) 0))) (let ((.cse1 (select (store (store |c_#memory_int| .cse0 v_ArrVal_2860) |v_ULTIMATE.start_main_~l~0#1.base_123| v_ArrVal_2867) (select (select .cse6 .cse4) .cse5))) (.cse2 (select (select .cse3 .cse4) .cse5))) (or (not (= (select (store |c_#valid| .cse0 1) |v_ULTIMATE.start_main_~l~0#1.base_123|) 0)) (not (= (select .cse1 (+ .cse2 8)) 2)) (not (= (select |c_#valid| .cse0) 0)) (not (= (select v_arrayElimArr_249 0) 0)) (not (= (select v_arrayElimArr_250 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select v_arrayElimArr_251 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse1 (+ .cse2 4)) 0)))))))) is different from false [2022-07-19 14:47:13,247 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:13,248 INFO L390 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 375 treesize of output 303 [2022-07-19 14:47:13,253 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:13,253 INFO L390 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 291 treesize of output 219 [2022-07-19 14:47:13,256 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:13,257 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:13,257 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:13,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:13,259 INFO L390 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 155 treesize of output 107 [2022-07-19 14:47:13,263 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:13,264 INFO L390 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 329 treesize of output 305 [2022-07-19 14:47:13,268 INFO L390 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 338 treesize of output 284 [2022-07-19 14:47:13,287 INFO L390 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 278 treesize of output 234 [2022-07-19 14:47:13,585 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 21 not checked. [2022-07-19 14:47:13,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035045921] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:47:13,586 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:47:13,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13, 13] total 29 [2022-07-19 14:47:13,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670497087] [2022-07-19 14:47:13,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:47:13,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-07-19 14:47:13,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:47:13,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-07-19 14:47:13,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=624, Unknown=7, NotChecked=102, Total=812 [2022-07-19 14:47:13,587 INFO L87 Difference]: Start difference. First operand 104 states and 131 transitions. Second operand has 29 states, 29 states have (on average 4.379310344827586) internal successors, (127), 29 states have internal predecessors, (127), 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) [2022-07-19 14:47:14,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:47:14,926 INFO L93 Difference]: Finished difference Result 144 states and 176 transitions. [2022-07-19 14:47:14,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-19 14:47:14,927 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.379310344827586) internal successors, (127), 29 states have internal predecessors, (127), 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 58 [2022-07-19 14:47:14,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:47:14,927 INFO L225 Difference]: With dead ends: 144 [2022-07-19 14:47:14,927 INFO L226 Difference]: Without dead ends: 142 [2022-07-19 14:47:14,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 106 SyntacticMatches, 4 SemanticMatches, 44 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=303, Invalid=1590, Unknown=7, NotChecked=170, Total=2070 [2022-07-19 14:47:14,928 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 91 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 223 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 14:47:14,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 632 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 198 Invalid, 0 Unknown, 223 Unchecked, 0.2s Time] [2022-07-19 14:47:14,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-07-19 14:47:14,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 83. [2022-07-19 14:47:14,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.2804878048780488) internal successors, (105), 82 states have internal predecessors, (105), 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) [2022-07-19 14:47:14,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 105 transitions. [2022-07-19 14:47:14,942 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 105 transitions. Word has length 58 [2022-07-19 14:47:14,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:47:14,942 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 105 transitions. [2022-07-19 14:47:14,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.379310344827586) internal successors, (127), 29 states have internal predecessors, (127), 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) [2022-07-19 14:47:14,942 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 105 transitions. [2022-07-19 14:47:14,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-19 14:47:14,943 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:47:14,943 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:47:14,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-07-19 14:47:15,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-07-19 14:47:15,147 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:47:15,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:47:15,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1492842773, now seen corresponding path program 7 times [2022-07-19 14:47:15,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:47:15,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385756403] [2022-07-19 14:47:15,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:47:15,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:47:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:47:15,430 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 16 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:47:15,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:47:15,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385756403] [2022-07-19 14:47:15,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385756403] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:47:15,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994454344] [2022-07-19 14:47:15,431 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-07-19 14:47:15,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:47:15,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:47:15,436 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:47:15,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-07-19 14:47:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:47:15,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 108 conjunts are in the unsatisfiable core [2022-07-19 14:47:15,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:47:15,708 INFO L390 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 [2022-07-19 14:47:15,712 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:15,715 INFO L390 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 [2022-07-19 14:47:15,765 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:15,768 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:15,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:15,773 INFO L390 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 [2022-07-19 14:47:15,790 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-19 14:47:15,791 INFO L390 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 29 [2022-07-19 14:47:15,794 INFO L390 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 [2022-07-19 14:47:15,870 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:15,874 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:15,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:15,883 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-19 14:47:15,884 INFO L390 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 56 treesize of output 52 [2022-07-19 14:47:15,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:15,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:15,888 INFO L390 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 33 treesize of output 38 [2022-07-19 14:47:15,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:15,900 INFO L356 Elim1Store]: treesize reduction 42, result has 38.2 percent of original size [2022-07-19 14:47:15,901 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 49 [2022-07-19 14:47:16,006 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:16,010 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:16,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:16,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:16,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:16,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:16,015 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-07-19 14:47:16,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:16,031 INFO L356 Elim1Store]: treesize reduction 56, result has 16.4 percent of original size [2022-07-19 14:47:16,032 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 116 treesize of output 86 [2022-07-19 14:47:16,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:16,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:16,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:16,041 INFO L356 Elim1Store]: treesize reduction 4, result has 80.0 percent of original size [2022-07-19 14:47:16,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 29 [2022-07-19 14:47:16,913 INFO L356 Elim1Store]: treesize reduction 194, result has 10.2 percent of original size [2022-07-19 14:47:16,913 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 14 new quantified variables, introduced 21 case distinctions, treesize of input 251 treesize of output 121 [2022-07-19 14:47:16,928 INFO L356 Elim1Store]: treesize reduction 15, result has 40.0 percent of original size [2022-07-19 14:47:16,928 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 34 [2022-07-19 14:47:16,932 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 16 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:47:16,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:47:17,032 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,032 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 73 treesize of output 71 [2022-07-19 14:47:17,036 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,036 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 64 treesize of output 59 [2022-07-19 14:47:17,043 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,044 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 73 treesize of output 68 [2022-07-19 14:47:17,047 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,047 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 59 [2022-07-19 14:47:17,070 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3044 (Array Int Int)) (v_ArrVal_3037 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_131| Int)) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_131|) 0)) (let ((.cse0 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_131| (store v_ArrVal_3044 0 |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse3 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_131| (store v_ArrVal_3037 0 |c_ULTIMATE.start_main_~l~0#1.base|)))) (let ((.cse4 (select (select .cse3 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse5 (select (select .cse0 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse1 (select (select .cse3 .cse4) .cse5)) (.cse2 (select (select .cse0 .cse4) .cse5))) (and (= (select (select .cse0 .cse1) .cse2) 0) (= (select (select .cse3 .cse1) .cse2) 0))))))) is different from false [2022-07-19 14:47:17,075 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,075 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 73 treesize of output 71 [2022-07-19 14:47:17,078 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,079 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 64 treesize of output 59 [2022-07-19 14:47:17,091 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,091 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 73 treesize of output 68 [2022-07-19 14:47:17,094 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,095 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 59 [2022-07-19 14:47:17,119 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,120 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 73 treesize of output 71 [2022-07-19 14:47:17,123 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,123 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 64 treesize of output 59 [2022-07-19 14:47:17,130 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,131 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 73 treesize of output 68 [2022-07-19 14:47:17,134 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,134 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 59 [2022-07-19 14:47:17,159 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,159 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 73 treesize of output 71 [2022-07-19 14:47:17,162 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,162 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 64 treesize of output 59 [2022-07-19 14:47:17,170 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,170 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 73 treesize of output 68 [2022-07-19 14:47:17,173 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,173 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 59 [2022-07-19 14:47:17,198 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,198 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 73 treesize of output 71 [2022-07-19 14:47:17,201 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,201 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 64 treesize of output 59 [2022-07-19 14:47:17,208 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,209 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 73 treesize of output 68 [2022-07-19 14:47:17,212 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,212 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 59 [2022-07-19 14:47:17,264 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,265 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 115 treesize of output 113 [2022-07-19 14:47:17,270 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,270 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 106 treesize of output 101 [2022-07-19 14:47:17,275 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,275 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 94 treesize of output 92 [2022-07-19 14:47:17,280 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,280 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 85 treesize of output 80 [2022-07-19 14:47:17,296 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,297 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 115 treesize of output 110 [2022-07-19 14:47:17,301 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,302 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 103 treesize of output 101 [2022-07-19 14:47:17,307 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,307 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 94 treesize of output 89 [2022-07-19 14:47:17,313 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,313 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 82 treesize of output 80 [2022-07-19 14:47:17,445 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimArr_282 (Array Int Int)) (v_arrayElimArr_281 (Array Int Int)) (v_arrayElimArr_280 (Array Int Int)) (v_arrayElimArr_283 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_131| Int)) (let ((.cse0 (select v_arrayElimArr_282 0))) (or (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_281 0))) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_280 0))) (not (= (select v_arrayElimArr_283 0) 0)) (not (= (select |c_#valid| .cse0) 0)) (= (let ((.cse1 (store (store |c_#memory_$Pointer$.offset| .cse0 v_arrayElimArr_281) |v_ULTIMATE.start_main_~l~0#1.base_131| v_arrayElimArr_283)) (.cse2 (store (store |c_#memory_$Pointer$.base| .cse0 v_arrayElimArr_280) |v_ULTIMATE.start_main_~l~0#1.base_131| v_arrayElimArr_282))) (let ((.cse3 (select (select .cse2 .cse0) 0)) (.cse4 (select (select .cse1 .cse0) 0))) (select (select .cse1 (select (select .cse2 .cse3) .cse4)) (select (select .cse1 .cse3) .cse4)))) 0) (not (= (select (store |c_#valid| .cse0 1) |v_ULTIMATE.start_main_~l~0#1.base_131|) 0))))) (forall ((v_arrayElimArr_286 (Array Int Int)) (v_arrayElimArr_285 (Array Int Int)) (v_arrayElimArr_284 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_131| Int) (v_arrayElimArr_287 (Array Int Int))) (let ((.cse5 (select v_arrayElimArr_286 0))) (or (not (= (select v_arrayElimArr_287 0) 0)) (not (= (select |c_#valid| .cse5) 0)) (= (let ((.cse9 (store (store |c_#memory_$Pointer$.offset| .cse5 v_arrayElimArr_285) |v_ULTIMATE.start_main_~l~0#1.base_131| v_arrayElimArr_287)) (.cse6 (store (store |c_#memory_$Pointer$.base| .cse5 v_arrayElimArr_284) |v_ULTIMATE.start_main_~l~0#1.base_131| v_arrayElimArr_286))) (let ((.cse7 (select (select .cse6 .cse5) 0)) (.cse8 (select (select .cse9 .cse5) 0))) (select (select .cse6 (select (select .cse6 .cse7) .cse8)) (select (select .cse9 .cse7) .cse8)))) 0) (not (= (select (store |c_#valid| .cse5 1) |v_ULTIMATE.start_main_~l~0#1.base_131|) 0)) (not (= (select v_arrayElimArr_285 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_284 0))))))) is different from false [2022-07-19 14:47:17,598 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,598 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 137 treesize of output 135 [2022-07-19 14:47:17,603 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,603 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 128 treesize of output 123 [2022-07-19 14:47:17,625 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,626 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 137 treesize of output 132 [2022-07-19 14:47:17,630 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,631 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 123 [2022-07-19 14:47:17,733 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimArr_282 (Array Int Int)) (v_arrayElimArr_281 (Array Int Int)) (v_arrayElimArr_280 (Array Int Int)) (v_arrayElimArr_291 (Array Int Int)) (v_arrayElimArr_290 (Array Int Int)) (v_arrayElimArr_283 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_131| Int)) (let ((.cse5 (select v_arrayElimArr_280 0))) (let ((.cse6 (store |c_#valid| .cse5 1)) (.cse4 (select v_arrayElimArr_282 0))) (or (not (= (select v_arrayElimArr_290 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select v_arrayElimArr_283 0) 0)) (not (= (select v_arrayElimArr_281 0) 0)) (= (let ((.cse0 (store (store (store |c_#memory_$Pointer$.offset| .cse5 v_arrayElimArr_290) .cse4 v_arrayElimArr_281) |v_ULTIMATE.start_main_~l~0#1.base_131| v_arrayElimArr_283)) (.cse1 (store (store (store |c_#memory_$Pointer$.base| .cse5 v_arrayElimArr_291) .cse4 v_arrayElimArr_280) |v_ULTIMATE.start_main_~l~0#1.base_131| v_arrayElimArr_282))) (let ((.cse2 (select (select .cse1 .cse4) 0)) (.cse3 (select (select .cse0 .cse4) 0))) (select (select .cse0 (select (select .cse1 .cse2) .cse3)) (select (select .cse0 .cse2) .cse3)))) 0) (not (= (select |c_#valid| .cse5) 0)) (not (= (select (store .cse6 .cse4 1) |v_ULTIMATE.start_main_~l~0#1.base_131|) 0)) (not (= (select .cse6 .cse4) 0)) (not (= (select v_arrayElimArr_291 0) |c_ULTIMATE.start_main_~l~0#1.base|)))))) (forall ((v_arrayElimArr_286 (Array Int Int)) (v_arrayElimArr_285 (Array Int Int)) (v_arrayElimArr_284 (Array Int Int)) (v_arrayElimArr_289 (Array Int Int)) (v_arrayElimArr_288 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_131| Int) (v_arrayElimArr_287 (Array Int Int))) (let ((.cse12 (select v_arrayElimArr_284 0))) (let ((.cse13 (store |c_#valid| .cse12 1)) (.cse11 (select v_arrayElimArr_286 0))) (or (not (= (select v_arrayElimArr_287 0) 0)) (= (let ((.cse10 (store (store (store |c_#memory_$Pointer$.offset| .cse12 v_arrayElimArr_288) .cse11 v_arrayElimArr_285) |v_ULTIMATE.start_main_~l~0#1.base_131| v_arrayElimArr_287)) (.cse7 (store (store (store |c_#memory_$Pointer$.base| .cse12 v_arrayElimArr_289) .cse11 v_arrayElimArr_284) |v_ULTIMATE.start_main_~l~0#1.base_131| v_arrayElimArr_286))) (let ((.cse8 (select (select .cse7 .cse11) 0)) (.cse9 (select (select .cse10 .cse11) 0))) (select (select .cse7 (select (select .cse7 .cse8) .cse9)) (select (select .cse10 .cse8) .cse9)))) 0) (not (= (select .cse13 .cse11) 0)) (not (= (select |c_#valid| .cse12) 0)) (not (= (select (store .cse13 .cse11 1) |v_ULTIMATE.start_main_~l~0#1.base_131|) 0)) (not (= (select v_arrayElimArr_288 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select v_arrayElimArr_285 0) 0)) (not (= (select v_arrayElimArr_289 0) |c_ULTIMATE.start_main_~l~0#1.base|))))))) is different from false [2022-07-19 14:47:17,911 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:17,911 INFO L390 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 214 treesize of output 177 [2022-07-19 14:47:17,913 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:17,913 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:17,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:17,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:17,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:17,968 INFO L356 Elim1Store]: treesize reduction 769, result has 2.7 percent of original size [2022-07-19 14:47:17,968 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 38134 treesize of output 34744 [2022-07-19 14:47:18,012 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:18,012 INFO L390 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 34716 treesize of output 23230 [2022-07-19 14:47:18,039 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:18,039 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:18,040 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:18,042 INFO L390 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 3504 treesize of output 3498 [2022-07-19 14:47:18,059 INFO L390 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 3546 treesize of output 2644 [2022-07-19 14:47:18,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:18,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:18,076 INFO L356 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2022-07-19 14:47:18,076 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 2604 treesize of output 2418 [2022-07-19 14:47:18,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:18,141 INFO L356 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-07-19 14:47:18,141 INFO L390 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 2284 treesize of output 1906 [2022-07-19 14:47:18,186 INFO L390 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 1241 treesize of output 1121 [2022-07-19 14:47:18,201 INFO L356 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-07-19 14:47:18,201 INFO L390 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 1096 treesize of output 1014 [2022-07-19 14:47:18,217 INFO L390 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 492 treesize of output 394 [2022-07-19 14:47:18,220 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:18,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:18,223 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:18,227 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-07-19 14:47:18,228 INFO L390 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 22 [2022-07-19 14:47:18,249 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:18,249 INFO L390 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 214 treesize of output 189 [2022-07-19 14:47:18,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:18,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:18,260 INFO L356 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-07-19 14:47:18,261 INFO L390 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 11290 treesize of output 10988 [2022-07-19 14:47:18,276 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:18,276 INFO L390 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 10984 treesize of output 7178 [2022-07-19 14:47:18,283 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:18,284 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:18,285 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:18,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:18,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:18,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:18,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:18,289 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15052 treesize of output 14278 [2022-07-19 14:47:18,346 INFO L390 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 14280 treesize of output 13382 [2022-07-19 14:47:18,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:18,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:18,409 INFO L390 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 13430 treesize of output 9328 [2022-07-19 14:47:18,438 INFO L390 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 9288 treesize of output 8902 [2022-07-19 14:47:18,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:18,489 INFO L390 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 8933 treesize of output 7697 [2022-07-19 14:47:18,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:18,521 INFO L390 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 7708 treesize of output 6682 [2022-07-19 14:47:18,574 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-07-19 14:47:18,574 INFO L390 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 31 [2022-07-19 14:47:18,720 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 16 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 39 not checked. [2022-07-19 14:47:18,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994454344] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:47:18,721 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:47:18,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 26 [2022-07-19 14:47:18,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048852341] [2022-07-19 14:47:18,721 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:47:18,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-19 14:47:18,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:47:18,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-19 14:47:18,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=451, Unknown=3, NotChecked=132, Total=650 [2022-07-19 14:47:18,722 INFO L87 Difference]: Start difference. First operand 83 states and 105 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) [2022-07-19 14:47:19,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:47:19,212 INFO L93 Difference]: Finished difference Result 164 states and 201 transitions. [2022-07-19 14:47:19,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-19 14:47:19,212 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 64 [2022-07-19 14:47:19,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:47:19,213 INFO L225 Difference]: With dead ends: 164 [2022-07-19 14:47:19,213 INFO L226 Difference]: Without dead ends: 97 [2022-07-19 14:47:19,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 118 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=97, Invalid=668, Unknown=3, NotChecked=162, Total=930 [2022-07-19 14:47:19,215 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 86 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 670 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 14:47:19,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 1094 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 208 Invalid, 0 Unknown, 670 Unchecked, 0.3s Time] [2022-07-19 14:47:19,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-07-19 14:47:19,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 88. [2022-07-19 14:47:19,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 1.2873563218390804) internal successors, (112), 87 states have internal predecessors, (112), 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) [2022-07-19 14:47:19,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 112 transitions. [2022-07-19 14:47:19,226 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 112 transitions. Word has length 64 [2022-07-19 14:47:19,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:47:19,226 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 112 transitions. [2022-07-19 14:47:19,226 INFO L496 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) [2022-07-19 14:47:19,226 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 112 transitions. [2022-07-19 14:47:19,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-19 14:47:19,226 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:47:19,227 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:47:19,244 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2022-07-19 14:47:19,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-07-19 14:47:19,427 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:47:19,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:47:19,428 INFO L85 PathProgramCache]: Analyzing trace with hash -377962859, now seen corresponding path program 8 times [2022-07-19 14:47:19,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:47:19,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552754936] [2022-07-19 14:47:19,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:47:19,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:47:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:47:20,035 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 24 proven. 109 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:47:20,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:47:20,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552754936] [2022-07-19 14:47:20,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552754936] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:47:20,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78759220] [2022-07-19 14:47:20,036 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 14:47:20,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:47:20,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:47:20,037 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:47:20,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-07-19 14:47:20,275 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-19 14:47:20,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 14:47:20,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 134 conjunts are in the unsatisfiable core [2022-07-19 14:47:20,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:47:20,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,291 INFO L390 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 21 treesize of output 26 [2022-07-19 14:47:20,296 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:20,356 INFO L390 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 [2022-07-19 14:47:20,360 INFO L390 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 [2022-07-19 14:47:20,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,363 INFO L390 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 [2022-07-19 14:47:20,374 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-19 14:47:20,374 INFO L390 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 29 [2022-07-19 14:47:20,454 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:20,458 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:20,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,462 INFO L390 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 59 treesize of output 49 [2022-07-19 14:47:20,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,476 INFO L356 Elim1Store]: treesize reduction 42, result has 38.2 percent of original size [2022-07-19 14:47:20,476 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 49 [2022-07-19 14:47:20,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,482 INFO L390 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 [2022-07-19 14:47:20,486 INFO L390 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 [2022-07-19 14:47:20,623 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:20,628 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:20,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,638 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-19 14:47:20,638 INFO L390 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 119 treesize of output 83 [2022-07-19 14:47:20,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,645 INFO L390 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 33 treesize of output 38 [2022-07-19 14:47:20,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,649 INFO L390 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 48 treesize of output 36 [2022-07-19 14:47:20,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,664 INFO L356 Elim1Store]: treesize reduction 54, result has 38.6 percent of original size [2022-07-19 14:47:20,665 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 73 [2022-07-19 14:47:20,826 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:20,831 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:20,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,840 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-07-19 14:47:20,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,846 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 38 [2022-07-19 14:47:20,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,862 INFO L356 Elim1Store]: treesize reduction 56, result has 16.4 percent of original size [2022-07-19 14:47:20,863 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 199 treesize of output 117 [2022-07-19 14:47:20,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:20,876 INFO L356 Elim1Store]: treesize reduction 4, result has 83.3 percent of original size [2022-07-19 14:47:20,876 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 36 [2022-07-19 14:47:23,144 INFO L356 Elim1Store]: treesize reduction 182, result has 15.7 percent of original size [2022-07-19 14:47:23,144 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 14 new quantified variables, introduced 21 case distinctions, treesize of input 325 treesize of output 151 [2022-07-19 14:47:23,161 INFO L356 Elim1Store]: treesize reduction 15, result has 40.0 percent of original size [2022-07-19 14:47:23,161 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 34 [2022-07-19 14:47:23,252 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 27 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:47:23,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:47:23,652 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:23,652 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 307 treesize of output 271 [2022-07-19 14:47:23,656 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:23,656 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 265 treesize of output 229 [2022-07-19 14:47:23,667 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3259 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_140| Int) (v_arrayElimArr_303 (Array Int Int)) (v_arrayElimArr_302 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_140| v_arrayElimArr_303)) (.cse5 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_140| v_arrayElimArr_302))) (let ((.cse6 (select (select .cse5 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse7 (select (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse3 (select (select .cse5 .cse6) .cse7)) (.cse4 (select (select .cse2 .cse6) .cse7))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_140| v_ArrVal_3259) (select (select .cse5 .cse3) .cse4))) (.cse1 (select (select .cse2 .cse3) .cse4))) (or (not (= 3 (select .cse0 (+ 8 .cse1)))) (not (= (select v_arrayElimArr_303 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_140|) 0)) (not (= (select .cse0 (+ .cse1 4)) 1)) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_302 0))))))))) is different from false [2022-07-19 14:47:23,719 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:23,719 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 577 treesize of output 515 [2022-07-19 14:47:23,724 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:23,724 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 507 treesize of output 445 [2022-07-19 14:47:23,743 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3252 (Array Int Int)) (v_ArrVal_3259 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_140| Int) (v_arrayElimArr_305 (Array Int Int)) (v_arrayElimArr_304 (Array Int Int)) (v_arrayElimArr_303 (Array Int Int)) (v_arrayElimArr_302 (Array Int Int))) (let ((.cse2 (select v_arrayElimArr_302 0))) (let ((.cse4 (store (store |c_#memory_$Pointer$.offset| .cse2 v_arrayElimArr_305) |v_ULTIMATE.start_main_~l~0#1.base_140| v_arrayElimArr_303)) (.cse7 (store (store |c_#memory_$Pointer$.base| .cse2 v_arrayElimArr_304) |v_ULTIMATE.start_main_~l~0#1.base_140| v_arrayElimArr_302)) (.cse3 (select v_arrayElimArr_303 0))) (let ((.cse8 (select (select .cse7 .cse2) .cse3)) (.cse9 (select (select .cse4 .cse2) .cse3))) (let ((.cse5 (select (select .cse7 .cse8) .cse9)) (.cse6 (select (select .cse4 .cse8) .cse9))) (let ((.cse0 (select (store (store |c_#memory_int| .cse2 v_ArrVal_3252) |v_ULTIMATE.start_main_~l~0#1.base_140| v_ArrVal_3259) (select (select .cse7 .cse5) .cse6))) (.cse1 (select (select .cse4 .cse5) .cse6))) (or (not (= (select .cse0 (+ 4 .cse1)) 1)) (not (= (select .cse0 (+ 8 .cse1)) 3)) (not (= (select (store |c_#valid| .cse2 1) |v_ULTIMATE.start_main_~l~0#1.base_140|) 0)) (not (= .cse3 0)) (not (= (select v_arrayElimArr_304 .cse3) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_305 .cse3))) (not (= (select |c_#valid| .cse2) 0))))))))) is different from false [2022-07-19 14:47:23,831 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:23,831 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 843 treesize of output 755 [2022-07-19 14:47:23,837 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:23,837 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 745 treesize of output 657 [2022-07-19 14:47:23,867 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_307 (Array Int Int)) (v_ArrVal_3252 (Array Int Int)) (v_arrayElimArr_306 (Array Int Int)) (v_ArrVal_3259 (Array Int Int)) (v_ArrVal_3238 (Array Int Int)) (v_arrayElimArr_305 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_140| Int) (v_arrayElimArr_304 (Array Int Int)) (v_arrayElimArr_303 (Array Int Int)) (v_arrayElimArr_302 (Array Int Int))) (let ((.cse6 (select v_arrayElimArr_303 0))) (let ((.cse2 (select v_arrayElimArr_304 .cse6)) (.cse1 (select v_arrayElimArr_302 0))) (let ((.cse7 (store (store (store |c_#memory_$Pointer$.offset| .cse2 v_arrayElimArr_307) .cse1 v_arrayElimArr_305) |v_ULTIMATE.start_main_~l~0#1.base_140| v_arrayElimArr_303)) (.cse10 (store (store (store |c_#memory_$Pointer$.base| .cse2 v_arrayElimArr_306) .cse1 v_arrayElimArr_304) |v_ULTIMATE.start_main_~l~0#1.base_140| v_arrayElimArr_302))) (let ((.cse11 (select (select .cse10 .cse1) .cse6)) (.cse12 (select (select .cse7 .cse1) .cse6))) (let ((.cse8 (select (select .cse10 .cse11) .cse12)) (.cse9 (select (select .cse7 .cse11) .cse12))) (let ((.cse3 (select (store (store (store |c_#memory_int| .cse2 v_ArrVal_3238) .cse1 v_ArrVal_3252) |v_ULTIMATE.start_main_~l~0#1.base_140| v_ArrVal_3259) (select (select .cse10 .cse8) .cse9))) (.cse4 (select (select .cse7 .cse8) .cse9)) (.cse5 (select v_arrayElimArr_305 .cse6)) (.cse0 (store |c_#valid| .cse2 1))) (or (not (= (select (store .cse0 .cse1 1) |v_ULTIMATE.start_main_~l~0#1.base_140|) 0)) (not (= (select |c_#valid| .cse2) 0)) (not (= 3 (select .cse3 (+ .cse4 8)))) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_306 .cse5))) (not (= (select v_arrayElimArr_307 .cse5) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse3 (+ .cse4 4)) 1)) (not (= .cse5 0)) (not (= .cse6 0)) (not (= (select .cse0 .cse1) 0)))))))))) is different from false [2022-07-19 14:47:24,007 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:24,008 INFO L390 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 1393 treesize of output 1049 [2022-07-19 14:47:24,017 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:24,017 INFO L390 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 1029 treesize of output 685 [2022-07-19 14:47:24,022 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:24,022 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:24,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:24,024 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:24,025 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:24,025 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:24,026 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:24,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:24,029 INFO L390 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 343 treesize of output 215 [2022-07-19 14:47:24,033 INFO L390 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 331 treesize of output 275 [2022-07-19 14:47:24,037 INFO L390 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 251 treesize of output 223 [2022-07-19 14:47:24,042 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:24,042 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:24,044 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:24,045 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:24,045 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:24,046 INFO L390 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 5001 treesize of output 4865 [2022-07-19 14:47:24,191 INFO L390 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 3483 treesize of output 3319 [2022-07-19 14:47:24,204 INFO L390 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 3313 treesize of output 2735 [2022-07-19 14:47:24,218 INFO L390 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 2726 treesize of output 2246 [2022-07-19 14:47:24,698 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 27 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 39 not checked. [2022-07-19 14:47:24,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78759220] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:47:24,698 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:47:24,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15, 15] total 42 [2022-07-19 14:47:24,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748747188] [2022-07-19 14:47:24,699 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:47:24,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-07-19 14:47:24,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:47:24,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-07-19 14:47:24,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1380, Unknown=5, NotChecked=228, Total=1722 [2022-07-19 14:47:24,700 INFO L87 Difference]: Start difference. First operand 88 states and 112 transitions. Second operand has 42 states, 42 states have (on average 4.476190476190476) internal successors, (188), 42 states have internal predecessors, (188), 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) [2022-07-19 14:47:39,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:47:39,749 INFO L93 Difference]: Finished difference Result 163 states and 199 transitions. [2022-07-19 14:47:39,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-07-19 14:47:39,750 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 4.476190476190476) internal successors, (188), 42 states have internal predecessors, (188), 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 69 [2022-07-19 14:47:39,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:47:39,750 INFO L225 Difference]: With dead ends: 163 [2022-07-19 14:47:39,750 INFO L226 Difference]: Without dead ends: 148 [2022-07-19 14:47:39,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 122 SyntacticMatches, 8 SemanticMatches, 84 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1290 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=1129, Invalid=5684, Unknown=5, NotChecked=492, Total=7310 [2022-07-19 14:47:39,752 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 346 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 355 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 14:47:39,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 1133 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 445 Invalid, 0 Unknown, 355 Unchecked, 0.5s Time] [2022-07-19 14:47:39,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-07-19 14:47:39,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 112. [2022-07-19 14:47:39,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.2612612612612613) internal successors, (140), 111 states have internal predecessors, (140), 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) [2022-07-19 14:47:39,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 140 transitions. [2022-07-19 14:47:39,778 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 140 transitions. Word has length 69 [2022-07-19 14:47:39,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:47:39,778 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 140 transitions. [2022-07-19 14:47:39,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 4.476190476190476) internal successors, (188), 42 states have internal predecessors, (188), 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) [2022-07-19 14:47:39,778 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 140 transitions. [2022-07-19 14:47:39,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-19 14:47:39,779 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:47:39,779 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:47:39,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-07-19 14:47:39,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:47:39,991 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:47:39,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:47:39,992 INFO L85 PathProgramCache]: Analyzing trace with hash 2038883673, now seen corresponding path program 8 times [2022-07-19 14:47:39,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:47:39,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987836432] [2022-07-19 14:47:39,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:47:39,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:47:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:47:40,424 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 23 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:47:40,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:47:40,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987836432] [2022-07-19 14:47:40,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987836432] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:47:40,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921127137] [2022-07-19 14:47:40,425 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 14:47:40,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:47:40,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:47:40,427 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:47:40,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-07-19 14:47:40,706 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-19 14:47:40,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 14:47:40,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 134 conjunts are in the unsatisfiable core [2022-07-19 14:47:40,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:47:40,718 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:40,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:40,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:40,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:40,723 INFO L390 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 21 treesize of output 26 [2022-07-19 14:47:40,772 INFO L390 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 [2022-07-19 14:47:40,784 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-19 14:47:40,784 INFO L390 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 29 [2022-07-19 14:47:40,786 INFO L390 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 [2022-07-19 14:47:40,794 INFO L390 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 [2022-07-19 14:47:40,870 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:40,873 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:40,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:40,877 INFO L390 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 59 treesize of output 49 [2022-07-19 14:47:40,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:40,881 INFO L390 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 [2022-07-19 14:47:40,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:40,887 INFO L390 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 [2022-07-19 14:47:40,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:40,905 INFO L356 Elim1Store]: treesize reduction 42, result has 38.2 percent of original size [2022-07-19 14:47:40,906 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 49 [2022-07-19 14:47:41,030 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:41,035 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:41,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:41,046 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-19 14:47:41,046 INFO L390 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 119 treesize of output 83 [2022-07-19 14:47:41,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:41,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:41,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:41,053 INFO L390 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 33 treesize of output 38 [2022-07-19 14:47:41,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:41,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:41,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:41,069 INFO L356 Elim1Store]: treesize reduction 54, result has 38.6 percent of original size [2022-07-19 14:47:41,069 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 73 [2022-07-19 14:47:41,072 INFO L390 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 48 treesize of output 36 [2022-07-19 14:47:41,231 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:41,249 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:47:41,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:41,267 INFO L356 Elim1Store]: treesize reduction 56, result has 16.4 percent of original size [2022-07-19 14:47:41,268 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 199 treesize of output 117 [2022-07-19 14:47:41,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:41,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:41,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:41,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:41,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:41,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:41,276 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 60 [2022-07-19 14:47:41,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:41,281 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 40 [2022-07-19 14:47:41,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:41,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:41,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:41,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:41,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:41,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:41,292 INFO L356 Elim1Store]: treesize reduction 4, result has 83.3 percent of original size [2022-07-19 14:47:41,292 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 36 [2022-07-19 14:47:43,575 INFO L356 Elim1Store]: treesize reduction 182, result has 15.7 percent of original size [2022-07-19 14:47:43,575 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 14 new quantified variables, introduced 21 case distinctions, treesize of input 325 treesize of output 151 [2022-07-19 14:47:43,594 INFO L356 Elim1Store]: treesize reduction 15, result has 40.0 percent of original size [2022-07-19 14:47:43,595 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 34 [2022-07-19 14:47:43,714 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 27 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:47:43,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:47:44,100 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:44,100 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 307 treesize of output 271 [2022-07-19 14:47:44,105 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:44,105 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 265 treesize of output 229 [2022-07-19 14:47:44,117 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3482 (Array Int Int)) (v_arrayElimArr_317 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_149| Int) (v_arrayElimArr_316 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_149| v_arrayElimArr_317)) (.cse5 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_149| v_arrayElimArr_316))) (let ((.cse6 (select (select .cse5 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse7 (select (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse3 (select (select .cse5 .cse6) .cse7)) (.cse4 (select (select .cse2 .cse6) .cse7))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_149| v_ArrVal_3482) (select (select .cse5 .cse3) .cse4))) (.cse1 (select (select .cse2 .cse3) .cse4))) (or (not (= (select .cse0 (+ .cse1 4)) 1)) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_316 0))) (not (= (select v_arrayElimArr_317 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_149|) 0)) (not (= (select .cse0 (+ .cse1 8)) 3)))))))) is different from false [2022-07-19 14:47:44,183 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:44,183 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 577 treesize of output 515 [2022-07-19 14:47:44,188 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:44,188 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 507 treesize of output 445 [2022-07-19 14:47:44,208 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_319 (Array Int Int)) (v_ArrVal_3482 (Array Int Int)) (v_arrayElimArr_318 (Array Int Int)) (v_arrayElimArr_317 (Array Int Int)) (v_ArrVal_3474 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_149| Int) (v_arrayElimArr_316 (Array Int Int))) (let ((.cse3 (select v_arrayElimArr_316 0))) (let ((.cse4 (store (store |c_#memory_$Pointer$.offset| .cse3 v_arrayElimArr_319) |v_ULTIMATE.start_main_~l~0#1.base_149| v_arrayElimArr_317)) (.cse7 (store (store |c_#memory_$Pointer$.base| .cse3 v_arrayElimArr_318) |v_ULTIMATE.start_main_~l~0#1.base_149| v_arrayElimArr_316)) (.cse2 (select v_arrayElimArr_317 0))) (let ((.cse8 (select (select .cse7 .cse3) .cse2)) (.cse9 (select (select .cse4 .cse3) .cse2))) (let ((.cse5 (select (select .cse7 .cse8) .cse9)) (.cse6 (select (select .cse4 .cse8) .cse9))) (let ((.cse0 (select (store (store |c_#memory_int| .cse3 v_ArrVal_3474) |v_ULTIMATE.start_main_~l~0#1.base_149| v_ArrVal_3482) (select (select .cse7 .cse5) .cse6))) (.cse1 (select (select .cse4 .cse5) .cse6))) (or (not (= (select .cse0 (+ .cse1 8)) 3)) (not (= .cse2 0)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_319 .cse2))) (not (= (select |c_#valid| .cse3) 0)) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_318 .cse2))) (not (= (select (store |c_#valid| .cse3 1) |v_ULTIMATE.start_main_~l~0#1.base_149|) 0)) (not (= (select .cse0 (+ .cse1 4)) 1))))))))) is different from false [2022-07-19 14:47:44,308 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:44,309 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 731 treesize of output 695 [2022-07-19 14:47:44,314 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:44,315 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 689 treesize of output 653 [2022-07-19 14:47:44,344 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_319 (Array Int Int)) (v_ArrVal_3482 (Array Int Int)) (v_arrayElimArr_318 (Array Int Int)) (v_arrayElimArr_317 (Array Int Int)) (v_ArrVal_3462 (Array Int Int)) (v_ArrVal_3474 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_149| Int) (v_arrayElimArr_321 (Array Int Int)) (v_arrayElimArr_320 (Array Int Int)) (v_arrayElimArr_316 (Array Int Int))) (let ((.cse5 (select v_arrayElimArr_317 0))) (let ((.cse4 (select v_arrayElimArr_318 .cse5)) (.cse1 (select v_arrayElimArr_316 0))) (let ((.cse6 (store (store (store |c_#memory_$Pointer$.offset| .cse4 v_arrayElimArr_320) .cse1 v_arrayElimArr_319) |v_ULTIMATE.start_main_~l~0#1.base_149| v_arrayElimArr_317)) (.cse9 (store (store (store |c_#memory_$Pointer$.base| .cse4 v_arrayElimArr_321) .cse1 v_arrayElimArr_318) |v_ULTIMATE.start_main_~l~0#1.base_149| v_arrayElimArr_316))) (let ((.cse10 (select (select .cse9 .cse1) .cse5)) (.cse11 (select (select .cse6 .cse1) .cse5))) (let ((.cse7 (select (select .cse9 .cse10) .cse11)) (.cse8 (select (select .cse6 .cse10) .cse11))) (let ((.cse2 (select (store (store (store |c_#memory_int| .cse4 v_ArrVal_3462) .cse1 v_ArrVal_3474) |v_ULTIMATE.start_main_~l~0#1.base_149| v_ArrVal_3482) (select (select .cse9 .cse7) .cse8))) (.cse3 (select (select .cse6 .cse7) .cse8)) (.cse0 (store |c_#valid| .cse4 1))) (or (not (= (select .cse0 .cse1) 0)) (not (= 3 (select .cse2 (+ .cse3 8)))) (not (= (select .cse2 (+ .cse3 4)) 1)) (not (= (select |c_#valid| .cse4) 0)) (not (= .cse5 0)) (not (= (select v_arrayElimArr_319 .cse5) 0)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_320 0))) (not (= (select (store .cse0 .cse1 1) |v_ULTIMATE.start_main_~l~0#1.base_149|) 0)) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_321 0))))))))))) is different from false [2022-07-19 14:47:44,479 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:44,479 INFO L390 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 993 treesize of output 835 [2022-07-19 14:47:44,487 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:47:44,487 INFO L390 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 825 treesize of output 667 [2022-07-19 14:47:44,491 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:44,491 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:44,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:44,492 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:44,493 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:44,493 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:44,494 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:44,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:44,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:44,497 INFO L390 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 325 treesize of output 207 [2022-07-19 14:47:44,501 INFO L390 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 275 treesize of output 237 [2022-07-19 14:47:44,508 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:44,509 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:44,511 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:44,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:44,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:44,513 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:44,513 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:47:44,514 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28095 treesize of output 27321 [2022-07-19 14:47:44,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:44,632 INFO L390 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 27377 treesize of output 26089 [2022-07-19 14:47:44,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:44,693 INFO L390 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 26083 treesize of output 19693 [2022-07-19 14:47:45,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:47:45,106 INFO L390 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 19396 treesize of output 13216 [2022-07-19 14:47:46,893 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 27 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 39 not checked. [2022-07-19 14:47:46,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921127137] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:47:46,893 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:47:46,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15, 15] total 41 [2022-07-19 14:47:46,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838401885] [2022-07-19 14:47:46,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:47:46,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-07-19 14:47:46,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:47:46,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-07-19 14:47:46,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1310, Unknown=4, NotChecked=222, Total=1640 [2022-07-19 14:47:46,895 INFO L87 Difference]: Start difference. First operand 112 states and 140 transitions. Second operand has 41 states, 41 states have (on average 4.585365853658536) internal successors, (188), 41 states have internal predecessors, (188), 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) [2022-07-19 14:48:05,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:48:05,019 INFO L93 Difference]: Finished difference Result 206 states and 248 transitions. [2022-07-19 14:48:05,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-07-19 14:48:05,020 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 4.585365853658536) internal successors, (188), 41 states have internal predecessors, (188), 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 69 [2022-07-19 14:48:05,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:48:05,021 INFO L225 Difference]: With dead ends: 206 [2022-07-19 14:48:05,021 INFO L226 Difference]: Without dead ends: 191 [2022-07-19 14:48:05,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 123 SyntacticMatches, 8 SemanticMatches, 84 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1192 ImplicationChecksByTransitivity, 18.4s TimeCoverageRelationStatistics Valid=1096, Invalid=5718, Unknown=4, NotChecked=492, Total=7310 [2022-07-19 14:48:05,022 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 446 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 1567 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 422 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 14:48:05,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 1567 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 742 Invalid, 0 Unknown, 422 Unchecked, 0.7s Time] [2022-07-19 14:48:05,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-07-19 14:48:05,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 115. [2022-07-19 14:48:05,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.263157894736842) internal successors, (144), 114 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) [2022-07-19 14:48:05,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 144 transitions. [2022-07-19 14:48:05,043 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 144 transitions. Word has length 69 [2022-07-19 14:48:05,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:48:05,044 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 144 transitions. [2022-07-19 14:48:05,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 4.585365853658536) internal successors, (188), 41 states have internal predecessors, (188), 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) [2022-07-19 14:48:05,044 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 144 transitions. [2022-07-19 14:48:05,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-19 14:48:05,045 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:48:05,045 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:48:05,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-07-19 14:48:05,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:48:05,259 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:48:05,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:48:05,260 INFO L85 PathProgramCache]: Analyzing trace with hash 946200921, now seen corresponding path program 9 times [2022-07-19 14:48:05,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:48:05,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613754945] [2022-07-19 14:48:05,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:48:05,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:48:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:48:05,672 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 23 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:48:05,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:48:05,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613754945] [2022-07-19 14:48:05,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613754945] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:48:05,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200394913] [2022-07-19 14:48:05,673 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-19 14:48:05,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:48:05,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:48:05,674 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:48:05,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-07-19 14:48:07,065 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-07-19 14:48:07,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 14:48:07,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 136 conjunts are in the unsatisfiable core [2022-07-19 14:48:07,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:48:07,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,085 INFO L390 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 21 treesize of output 26 [2022-07-19 14:48:07,091 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:48:07,151 INFO L390 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 [2022-07-19 14:48:07,163 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-19 14:48:07,164 INFO L390 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 29 [2022-07-19 14:48:07,166 INFO L390 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 [2022-07-19 14:48:07,175 INFO L390 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 [2022-07-19 14:48:07,251 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:48:07,255 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:48:07,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,259 INFO L390 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 59 treesize of output 49 [2022-07-19 14:48:07,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,263 INFO L390 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 [2022-07-19 14:48:07,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,267 INFO L390 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 [2022-07-19 14:48:07,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,280 INFO L356 Elim1Store]: treesize reduction 42, result has 38.2 percent of original size [2022-07-19 14:48:07,280 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 49 [2022-07-19 14:48:07,405 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:48:07,409 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:48:07,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,427 INFO L390 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 44 treesize of output 34 [2022-07-19 14:48:07,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,437 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-19 14:48:07,437 INFO L390 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 119 treesize of output 83 [2022-07-19 14:48:07,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,454 INFO L356 Elim1Store]: treesize reduction 54, result has 38.6 percent of original size [2022-07-19 14:48:07,455 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 73 [2022-07-19 14:48:07,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,460 INFO L390 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 33 treesize of output 38 [2022-07-19 14:48:07,618 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:48:07,623 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:48:07,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,642 INFO L356 Elim1Store]: treesize reduction 56, result has 16.4 percent of original size [2022-07-19 14:48:07,642 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 199 treesize of output 117 [2022-07-19 14:48:07,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,657 INFO L356 Elim1Store]: treesize reduction 4, result has 83.3 percent of original size [2022-07-19 14:48:07,657 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 36 [2022-07-19 14:48:07,661 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 40 [2022-07-19 14:48:07,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:07,669 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 60 [2022-07-19 14:48:09,943 INFO L356 Elim1Store]: treesize reduction 182, result has 15.7 percent of original size [2022-07-19 14:48:09,943 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 14 new quantified variables, introduced 21 case distinctions, treesize of input 325 treesize of output 151 [2022-07-19 14:48:09,958 INFO L356 Elim1Store]: treesize reduction 15, result has 40.0 percent of original size [2022-07-19 14:48:09,959 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 34 [2022-07-19 14:48:10,048 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 27 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:48:10,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:48:10,429 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:48:10,430 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 307 treesize of output 271 [2022-07-19 14:48:10,433 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:48:10,434 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 265 treesize of output 229 [2022-07-19 14:48:10,445 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_330 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_158| Int) (v_ArrVal_3700 (Array Int Int)) (v_arrayElimArr_331 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_158| v_arrayElimArr_331)) (.cse5 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_158| v_arrayElimArr_330))) (let ((.cse6 (select (select .cse5 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse7 (select (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse3 (select (select .cse5 .cse6) .cse7)) (.cse4 (select (select .cse2 .cse6) .cse7))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_158| v_ArrVal_3700) (select (select .cse5 .cse3) .cse4))) (.cse1 (select (select .cse2 .cse3) .cse4))) (or (not (= 3 (select .cse0 (+ 8 .cse1)))) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_331 0))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_158|) 0)) (not (= (select .cse0 (+ .cse1 4)) 1)) (not (= (select v_arrayElimArr_330 0) |c_ULTIMATE.start_main_~l~0#1.base|)))))))) is different from false [2022-07-19 14:48:10,495 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:48:10,496 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 577 treesize of output 515 [2022-07-19 14:48:10,500 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:48:10,500 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 507 treesize of output 445 [2022-07-19 14:48:10,518 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_330 (Array Int Int)) (v_ArrVal_3694 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_158| Int) (v_arrayElimArr_333 (Array Int Int)) (v_arrayElimArr_332 (Array Int Int)) (v_ArrVal_3700 (Array Int Int)) (v_arrayElimArr_331 (Array Int Int))) (let ((.cse3 (select v_arrayElimArr_330 0))) (let ((.cse4 (store (store |c_#memory_$Pointer$.offset| .cse3 v_arrayElimArr_333) |v_ULTIMATE.start_main_~l~0#1.base_158| v_arrayElimArr_331)) (.cse7 (store (store |c_#memory_$Pointer$.base| .cse3 v_arrayElimArr_332) |v_ULTIMATE.start_main_~l~0#1.base_158| v_arrayElimArr_330)) (.cse2 (select v_arrayElimArr_331 0))) (let ((.cse8 (select (select .cse7 .cse3) .cse2)) (.cse9 (select (select .cse4 .cse3) .cse2))) (let ((.cse5 (select (select .cse7 .cse8) .cse9)) (.cse6 (select (select .cse4 .cse8) .cse9))) (let ((.cse0 (select (store (store |c_#memory_int| .cse3 v_ArrVal_3694) |v_ULTIMATE.start_main_~l~0#1.base_158| v_ArrVal_3700) (select (select .cse7 .cse5) .cse6))) (.cse1 (select (select .cse4 .cse5) .cse6))) (or (not (= (select .cse0 (+ .cse1 4)) 1)) (not (= .cse2 0)) (not (= (select (store |c_#valid| .cse3 1) |v_ULTIMATE.start_main_~l~0#1.base_158|) 0)) (not (= (select |c_#valid| .cse3) 0)) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_332 .cse2))) (not (= (select v_arrayElimArr_333 .cse2) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= 3 (select .cse0 (+ 8 .cse1))))))))))) is different from false [2022-07-19 14:48:10,605 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:48:10,606 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 731 treesize of output 695 [2022-07-19 14:48:10,611 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:48:10,611 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 689 treesize of output 653 [2022-07-19 14:48:10,641 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_330 (Array Int Int)) (v_ArrVal_3694 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_158| Int) (v_ArrVal_3686 (Array Int Int)) (v_arrayElimArr_334 (Array Int Int)) (v_arrayElimArr_333 (Array Int Int)) (v_arrayElimArr_332 (Array Int Int)) (v_ArrVal_3700 (Array Int Int)) (v_arrayElimArr_331 (Array Int Int)) (v_arrayElimArr_335 (Array Int Int))) (let ((.cse5 (select v_arrayElimArr_331 0))) (let ((.cse4 (select v_arrayElimArr_332 .cse5)) (.cse3 (select v_arrayElimArr_330 0))) (let ((.cse6 (store (store (store |c_#memory_$Pointer$.offset| .cse4 v_arrayElimArr_334) .cse3 v_arrayElimArr_333) |v_ULTIMATE.start_main_~l~0#1.base_158| v_arrayElimArr_331)) (.cse9 (store (store (store |c_#memory_$Pointer$.base| .cse4 v_arrayElimArr_335) .cse3 v_arrayElimArr_332) |v_ULTIMATE.start_main_~l~0#1.base_158| v_arrayElimArr_330))) (let ((.cse10 (select (select .cse9 .cse3) .cse5)) (.cse11 (select (select .cse6 .cse3) .cse5))) (let ((.cse7 (select (select .cse9 .cse10) .cse11)) (.cse8 (select (select .cse6 .cse10) .cse11))) (let ((.cse0 (select (store (store (store |c_#memory_int| .cse4 v_ArrVal_3686) .cse3 v_ArrVal_3694) |v_ULTIMATE.start_main_~l~0#1.base_158| v_ArrVal_3700) (select (select .cse9 .cse7) .cse8))) (.cse1 (select (select .cse6 .cse7) .cse8)) (.cse2 (store |c_#valid| .cse4 1))) (or (not (= (select .cse0 (+ 4 .cse1)) 1)) (not (= (select .cse2 .cse3) 0)) (not (= (select |c_#valid| .cse4) 0)) (not (= .cse5 0)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_334 0))) (not (= 3 (select .cse0 (+ 8 .cse1)))) (not (= (select (store .cse2 .cse3 1) |v_ULTIMATE.start_main_~l~0#1.base_158|) 0)) (not (= (select v_arrayElimArr_335 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_333 .cse5) 0)))))))))) is different from false [2022-07-19 14:48:10,788 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:48:10,788 INFO L390 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 993 treesize of output 835 [2022-07-19 14:48:10,796 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:48:10,796 INFO L390 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 825 treesize of output 667 [2022-07-19 14:48:10,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:48:10,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:48:10,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:10,802 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:48:10,802 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:48:10,803 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:48:10,803 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:48:10,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:10,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:10,807 INFO L390 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 325 treesize of output 207 [2022-07-19 14:48:10,811 INFO L390 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 275 treesize of output 237 [2022-07-19 14:48:10,818 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:48:10,819 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:48:10,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:48:10,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:48:10,823 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:48:10,823 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:48:10,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:10,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:10,825 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 109551 treesize of output 106473 [2022-07-19 14:48:11,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:11,261 INFO L390 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 106529 treesize of output 101657 [2022-07-19 14:48:11,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:11,493 INFO L390 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 101651 treesize of output 68141 [2022-07-19 14:48:13,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:13,455 INFO L390 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 62500 treesize of output 46544 [2022-07-19 14:48:17,909 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 27 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 39 not checked. [2022-07-19 14:48:17,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200394913] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:48:17,910 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:48:17,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15, 15] total 41 [2022-07-19 14:48:17,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214662862] [2022-07-19 14:48:17,910 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:48:17,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-07-19 14:48:17,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:48:17,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-07-19 14:48:17,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1307, Unknown=7, NotChecked=222, Total=1640 [2022-07-19 14:48:17,911 INFO L87 Difference]: Start difference. First operand 115 states and 144 transitions. Second operand has 41 states, 41 states have (on average 4.585365853658536) internal successors, (188), 41 states have internal predecessors, (188), 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) [2022-07-19 14:48:36,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:48:36,036 INFO L93 Difference]: Finished difference Result 200 states and 241 transitions. [2022-07-19 14:48:36,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-07-19 14:48:36,036 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 4.585365853658536) internal successors, (188), 41 states have internal predecessors, (188), 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 69 [2022-07-19 14:48:36,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:48:36,037 INFO L225 Difference]: With dead ends: 200 [2022-07-19 14:48:36,037 INFO L226 Difference]: Without dead ends: 185 [2022-07-19 14:48:36,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 124 SyntacticMatches, 8 SemanticMatches, 85 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1281 ImplicationChecksByTransitivity, 18.4s TimeCoverageRelationStatistics Valid=1192, Invalid=5785, Unknown=7, NotChecked=498, Total=7482 [2022-07-19 14:48:36,038 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 441 mSDsluCounter, 1447 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 434 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 14:48:36,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 1508 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 686 Invalid, 0 Unknown, 434 Unchecked, 0.7s Time] [2022-07-19 14:48:36,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-07-19 14:48:36,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 123. [2022-07-19 14:48:36,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 122 states have (on average 1.2622950819672132) internal successors, (154), 122 states have internal predecessors, (154), 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) [2022-07-19 14:48:36,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 154 transitions. [2022-07-19 14:48:36,059 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 154 transitions. Word has length 69 [2022-07-19 14:48:36,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:48:36,060 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 154 transitions. [2022-07-19 14:48:36,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 4.585365853658536) internal successors, (188), 41 states have internal predecessors, (188), 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) [2022-07-19 14:48:36,060 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 154 transitions. [2022-07-19 14:48:36,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-19 14:48:36,061 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:48:36,061 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:48:36,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-07-19 14:48:36,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-07-19 14:48:36,279 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:48:36,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:48:36,280 INFO L85 PathProgramCache]: Analyzing trace with hash 752421917, now seen corresponding path program 10 times [2022-07-19 14:48:36,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:48:36,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402909802] [2022-07-19 14:48:36,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:48:36,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:48:36,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:48:36,704 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 23 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:48:36,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:48:36,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402909802] [2022-07-19 14:48:36,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402909802] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:48:36,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740203454] [2022-07-19 14:48:36,704 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-19 14:48:36,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:48:36,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:48:36,706 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 14:48:36,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-07-19 14:48:37,020 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-19 14:48:37,021 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 14:48:37,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 136 conjunts are in the unsatisfiable core [2022-07-19 14:48:37,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:48:37,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,039 INFO L390 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 21 treesize of output 26 [2022-07-19 14:48:37,043 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:48:37,107 INFO L390 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 [2022-07-19 14:48:37,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,110 INFO L390 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 [2022-07-19 14:48:37,121 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-19 14:48:37,121 INFO L390 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 29 [2022-07-19 14:48:37,129 INFO L390 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 [2022-07-19 14:48:37,204 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:48:37,207 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:48:37,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,211 INFO L390 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 [2022-07-19 14:48:37,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,215 INFO L390 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 [2022-07-19 14:48:37,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,218 INFO L390 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 59 treesize of output 49 [2022-07-19 14:48:37,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,231 INFO L356 Elim1Store]: treesize reduction 42, result has 38.2 percent of original size [2022-07-19 14:48:37,231 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 49 [2022-07-19 14:48:37,349 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:48:37,354 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:48:37,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,365 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-19 14:48:37,365 INFO L390 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 119 treesize of output 83 [2022-07-19 14:48:37,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,371 INFO L390 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 33 treesize of output 38 [2022-07-19 14:48:37,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,387 INFO L356 Elim1Store]: treesize reduction 54, result has 38.6 percent of original size [2022-07-19 14:48:37,388 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 73 [2022-07-19 14:48:37,391 INFO L390 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 48 treesize of output 36 [2022-07-19 14:48:37,555 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:48:37,560 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-07-19 14:48:37,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,579 INFO L356 Elim1Store]: treesize reduction 56, result has 16.4 percent of original size [2022-07-19 14:48:37,579 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 199 treesize of output 117 [2022-07-19 14:48:37,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,593 INFO L356 Elim1Store]: treesize reduction 4, result has 83.3 percent of original size [2022-07-19 14:48:37,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 36 [2022-07-19 14:48:37,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:37,601 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 60 [2022-07-19 14:48:37,604 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 40 [2022-07-19 14:48:39,775 INFO L356 Elim1Store]: treesize reduction 182, result has 15.7 percent of original size [2022-07-19 14:48:39,775 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 14 new quantified variables, introduced 21 case distinctions, treesize of input 325 treesize of output 151 [2022-07-19 14:48:39,792 INFO L356 Elim1Store]: treesize reduction 15, result has 40.0 percent of original size [2022-07-19 14:48:39,792 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 34 [2022-07-19 14:48:39,884 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 27 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:48:39,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:48:40,282 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:48:40,283 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 307 treesize of output 271 [2022-07-19 14:48:40,286 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:48:40,286 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 265 treesize of output 229 [2022-07-19 14:48:40,297 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3919 (Array Int Int)) (v_arrayElimArr_345 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_167| Int) (v_arrayElimArr_344 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_167| v_arrayElimArr_345)) (.cse5 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_167| v_arrayElimArr_344))) (let ((.cse6 (select (select .cse5 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse7 (select (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse3 (select (select .cse5 .cse6) .cse7)) (.cse4 (select (select .cse2 .cse6) .cse7))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_167| v_ArrVal_3919) (select (select .cse5 .cse3) .cse4))) (.cse1 (select (select .cse2 .cse3) .cse4))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_167|) 0)) (not (= (select v_arrayElimArr_344 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= 1 (select .cse0 (+ .cse1 4)))) (not (= (select v_arrayElimArr_345 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse0 (+ 8 .cse1)) 3)))))))) is different from false [2022-07-19 14:48:40,347 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:48:40,347 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 521 treesize of output 485 [2022-07-19 14:48:40,352 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:48:40,352 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 479 treesize of output 443 [2022-07-19 14:48:40,370 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3916 (Array Int Int)) (v_ArrVal_3919 (Array Int Int)) (v_arrayElimArr_345 (Array Int Int)) (v_arrayElimArr_344 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_167| Int) (v_arrayElimArr_347 (Array Int Int)) (v_arrayElimArr_346 (Array Int Int))) (let ((.cse1 (select v_arrayElimArr_344 0))) (let ((.cse4 (store (store |c_#memory_$Pointer$.offset| .cse1 v_arrayElimArr_347) |v_ULTIMATE.start_main_~l~0#1.base_167| v_arrayElimArr_345)) (.cse7 (store (store |c_#memory_$Pointer$.base| .cse1 v_arrayElimArr_346) |v_ULTIMATE.start_main_~l~0#1.base_167| v_arrayElimArr_344)) (.cse0 (select v_arrayElimArr_345 0))) (let ((.cse8 (select (select .cse7 .cse1) .cse0)) (.cse9 (select (select .cse4 .cse1) .cse0))) (let ((.cse5 (select (select .cse7 .cse8) .cse9)) (.cse6 (select (select .cse4 .cse8) .cse9))) (let ((.cse2 (select (store (store |c_#memory_int| .cse1 v_ArrVal_3916) |v_ULTIMATE.start_main_~l~0#1.base_167| v_ArrVal_3919) (select (select .cse7 .cse5) .cse6))) (.cse3 (select (select .cse4 .cse5) .cse6))) (or (not (= .cse0 0)) (not (= (select (store |c_#valid| .cse1 1) |v_ULTIMATE.start_main_~l~0#1.base_167|) 0)) (not (= (select v_arrayElimArr_346 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse2 (+ 8 .cse3)) 3)) (not (= (select v_arrayElimArr_347 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= 0 (select |c_#valid| .cse1))) (not (= (select .cse2 (+ .cse3 4)) 1))))))))) is different from false [2022-07-19 14:48:40,453 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:48:40,455 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 727 treesize of output 665 [2022-07-19 14:48:40,463 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:48:40,463 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 657 treesize of output 595 [2022-07-19 14:48:40,491 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3916 (Array Int Int)) (v_ArrVal_3919 (Array Int Int)) (v_arrayElimArr_345 (Array Int Int)) (v_arrayElimArr_344 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_167| Int) (v_arrayElimArr_349 (Array Int Int)) (v_arrayElimArr_348 (Array Int Int)) (v_arrayElimArr_347 (Array Int Int)) (v_arrayElimArr_346 (Array Int Int)) (v_ArrVal_3903 (Array Int Int))) (let ((.cse4 (select v_arrayElimArr_346 0)) (.cse6 (select v_arrayElimArr_344 0))) (let ((.cse7 (store (store (store |c_#memory_$Pointer$.offset| .cse4 v_arrayElimArr_349) .cse6 v_arrayElimArr_347) |v_ULTIMATE.start_main_~l~0#1.base_167| v_arrayElimArr_345)) (.cse10 (store (store (store |c_#memory_$Pointer$.base| .cse4 v_arrayElimArr_348) .cse6 v_arrayElimArr_346) |v_ULTIMATE.start_main_~l~0#1.base_167| v_arrayElimArr_344)) (.cse0 (select v_arrayElimArr_345 0))) (let ((.cse11 (select (select .cse10 .cse6) .cse0)) (.cse12 (select (select .cse7 .cse6) .cse0))) (let ((.cse8 (select (select .cse10 .cse11) .cse12)) (.cse9 (select (select .cse7 .cse11) .cse12))) (let ((.cse1 (select v_arrayElimArr_347 0)) (.cse5 (store |c_#valid| .cse4 1)) (.cse2 (select (store (store (store |c_#memory_int| .cse4 v_ArrVal_3903) .cse6 v_ArrVal_3916) |v_ULTIMATE.start_main_~l~0#1.base_167| v_ArrVal_3919) (select (select .cse10 .cse8) .cse9))) (.cse3 (select (select .cse7 .cse8) .cse9))) (or (not (= .cse0 0)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_349 .cse1))) (not (= (select .cse2 (+ .cse3 4)) 1)) (not (= (select v_arrayElimArr_348 .cse1) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= .cse1 0)) (not (= (select |c_#valid| .cse4) 0)) (not (= (select .cse5 .cse6) 0)) (not (= (select (store .cse5 .cse6 1) |v_ULTIMATE.start_main_~l~0#1.base_167|) 0)) (not (= (select .cse2 (+ 8 .cse3)) 3))))))))) is different from false [2022-07-19 14:48:40,621 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:48:40,622 INFO L390 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 1049 treesize of output 837 [2022-07-19 14:48:40,629 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:48:40,630 INFO L390 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 825 treesize of output 613 [2022-07-19 14:48:40,633 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:48:40,634 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:48:40,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:40,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:48:40,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:48:40,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:48:40,637 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:48:40,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:40,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:40,640 INFO L390 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 307 treesize of output 195 [2022-07-19 14:48:40,644 INFO L390 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 285 treesize of output 251 [2022-07-19 14:48:40,650 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:48:40,650 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:48:40,652 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:48:40,653 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:48:40,653 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:48:40,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:48:40,654 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:48:40,671 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:48:40,671 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 27511 treesize of output 25989 [2022-07-19 14:48:41,144 INFO L390 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 23299 treesize of output 22769 [2022-07-19 14:48:41,200 INFO L390 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 22767 treesize of output 7413 [2022-07-19 14:48:41,338 INFO L390 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 5310 treesize of output 4424 [2022-07-19 14:48:42,164 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-07-19 14:48:42,164 INFO L390 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 69 treesize of output 1 [2022-07-19 14:48:42,166 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 27 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 39 not checked. [2022-07-19 14:48:42,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740203454] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:48:42,166 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 14:48:42,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15, 15] total 41 [2022-07-19 14:48:42,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349349150] [2022-07-19 14:48:42,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 14:48:42,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-07-19 14:48:42,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:48:42,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-07-19 14:48:42,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1311, Unknown=3, NotChecked=222, Total=1640 [2022-07-19 14:48:42,167 INFO L87 Difference]: Start difference. First operand 123 states and 154 transitions. Second operand has 41 states, 41 states have (on average 4.585365853658536) internal successors, (188), 41 states have internal predecessors, (188), 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)