./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/heap-data/shared_mem1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e8d55036 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/shared_mem1.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 47cb7cab177485da5df0f1af4a3f61fd7eb970990493dd3ac764f888774cbf0f --- Real Ultimate output --- This is Ultimate 0.2.2-?-e8d5503-m [2023-02-15 19:51:22,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 19:51:22,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 19:51:22,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 19:51:22,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 19:51:22,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 19:51:22,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 19:51:22,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 19:51:22,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 19:51:22,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 19:51:22,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 19:51:22,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 19:51:22,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 19:51:22,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 19:51:22,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 19:51:22,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 19:51:22,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 19:51:22,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 19:51:22,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 19:51:22,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 19:51:22,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 19:51:22,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 19:51:22,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 19:51:22,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 19:51:22,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 19:51:22,128 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 19:51:22,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 19:51:22,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 19:51:22,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 19:51:22,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 19:51:22,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 19:51:22,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 19:51:22,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 19:51:22,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 19:51:22,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 19:51:22,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 19:51:22,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 19:51:22,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 19:51:22,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 19:51:22,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 19:51:22,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 19:51:22,140 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-15 19:51:22,173 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 19:51:22,173 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 19:51:22,174 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 19:51:22,174 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 19:51:22,175 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 19:51:22,175 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 19:51:22,175 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 19:51:22,176 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 19:51:22,176 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 19:51:22,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 19:51:22,177 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 19:51:22,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 19:51:22,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 19:51:22,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 19:51:22,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 19:51:22,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 19:51:22,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 19:51:22,178 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 19:51:22,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 19:51:22,179 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 19:51:22,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 19:51:22,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 19:51:22,179 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 19:51:22,180 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 19:51:22,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 19:51:22,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 19:51:22,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 19:51:22,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 19:51:22,181 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 19:51:22,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 19:51:22,181 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 19:51:22,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 19:51:22,182 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 19:51:22,182 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 19:51:22,182 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 19:51:22,182 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47cb7cab177485da5df0f1af4a3f61fd7eb970990493dd3ac764f888774cbf0f [2023-02-15 19:51:22,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 19:51:22,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 19:51:22,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 19:51:22,459 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 19:51:22,459 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 19:51:22,460 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-data/shared_mem1.i [2023-02-15 19:51:23,634 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 19:51:23,881 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 19:51:23,881 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-data/shared_mem1.i [2023-02-15 19:51:23,890 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5949a33ea/219d552ddffe4e20bf6d08c0a2274cfb/FLAGebb682e82 [2023-02-15 19:51:23,901 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5949a33ea/219d552ddffe4e20bf6d08c0a2274cfb [2023-02-15 19:51:23,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 19:51:23,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 19:51:23,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 19:51:23,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 19:51:23,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 19:51:23,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 07:51:23" (1/1) ... [2023-02-15 19:51:23,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@648707e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:51:23, skipping insertion in model container [2023-02-15 19:51:23,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 07:51:23" (1/1) ... [2023-02-15 19:51:23,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 19:51:23,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 19:51:24,185 WARN L237 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/shared_mem1.i[23879,23892] [2023-02-15 19:51:24,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 19:51:24,203 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 19:51:24,258 WARN L237 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/shared_mem1.i[23879,23892] [2023-02-15 19:51:24,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 19:51:24,284 INFO L208 MainTranslator]: Completed translation [2023-02-15 19:51:24,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:51:24 WrapperNode [2023-02-15 19:51:24,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 19:51:24,286 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 19:51:24,287 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 19:51:24,287 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 19:51:24,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:51:24" (1/1) ... [2023-02-15 19:51:24,315 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:51:24" (1/1) ... [2023-02-15 19:51:24,339 INFO L138 Inliner]: procedures = 121, calls = 30, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 80 [2023-02-15 19:51:24,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 19:51:24,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 19:51:24,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 19:51:24,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 19:51:24,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:51:24" (1/1) ... [2023-02-15 19:51:24,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:51:24" (1/1) ... [2023-02-15 19:51:24,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:51:24" (1/1) ... [2023-02-15 19:51:24,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:51:24" (1/1) ... [2023-02-15 19:51:24,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:51:24" (1/1) ... [2023-02-15 19:51:24,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:51:24" (1/1) ... [2023-02-15 19:51:24,368 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:51:24" (1/1) ... [2023-02-15 19:51:24,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:51:24" (1/1) ... [2023-02-15 19:51:24,371 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 19:51:24,371 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 19:51:24,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 19:51:24,372 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 19:51:24,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:51:24" (1/1) ... [2023-02-15 19:51:24,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 19:51:24,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:51:24,401 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) [2023-02-15 19:51:24,403 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 [2023-02-15 19:51:24,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-15 19:51:24,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-15 19:51:24,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-15 19:51:24,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 19:51:24,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-15 19:51:24,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-02-15 19:51:24,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 19:51:24,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 19:51:24,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 19:51:24,538 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 19:51:24,540 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 19:51:24,742 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 19:51:24,762 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 19:51:24,763 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-15 19:51:24,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 07:51:24 BoogieIcfgContainer [2023-02-15 19:51:24,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 19:51:24,766 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 19:51:24,767 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 19:51:24,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 19:51:24,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 07:51:23" (1/3) ... [2023-02-15 19:51:24,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d5e81d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 07:51:24, skipping insertion in model container [2023-02-15 19:51:24,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:51:24" (2/3) ... [2023-02-15 19:51:24,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d5e81d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 07:51:24, skipping insertion in model container [2023-02-15 19:51:24,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 07:51:24" (3/3) ... [2023-02-15 19:51:24,772 INFO L112 eAbstractionObserver]: Analyzing ICFG shared_mem1.i [2023-02-15 19:51:24,817 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 19:51:24,817 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-15 19:51:24,862 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 19:51:24,868 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@666393aa, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 19:51:24,868 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-15 19:51:24,872 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:51:24,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-15 19:51:24,877 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:51:24,877 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:51:24,878 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:51:24,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:51:24,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1650103796, now seen corresponding path program 1 times [2023-02-15 19:51:24,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:51:24,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988417590] [2023-02-15 19:51:24,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:51:24,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:51:25,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:51:25,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:51:25,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:51:25,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988417590] [2023-02-15 19:51:25,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988417590] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 19:51:25,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 19:51:25,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 19:51:25,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506197602] [2023-02-15 19:51:25,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 19:51:25,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-15 19:51:25,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:51:25,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-15 19:51:25,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 19:51:25,166 INFO L87 Difference]: Start difference. First operand has 16 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2023-02-15 19:51:25,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:51:25,186 INFO L93 Difference]: Finished difference Result 27 states and 38 transitions. [2023-02-15 19:51:25,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 19:51:25,188 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 [2023-02-15 19:51:25,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:51:25,194 INFO L225 Difference]: With dead ends: 27 [2023-02-15 19:51:25,194 INFO L226 Difference]: Without dead ends: 13 [2023-02-15 19:51:25,197 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 [2023-02-15 19:51:25,201 INFO L413 NwaCegarLoop]: 20 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, 20 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 [2023-02-15 19:51:25,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 19:51:25,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-02-15 19:51:25,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-02-15 19:51:25,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 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) [2023-02-15 19:51:25,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2023-02-15 19:51:25,228 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 17 transitions. Word has length 10 [2023-02-15 19:51:25,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:51:25,228 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 17 transitions. [2023-02-15 19:51:25,229 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) [2023-02-15 19:51:25,229 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2023-02-15 19:51:25,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 19:51:25,229 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:51:25,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:51:25,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 19:51:25,230 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:51:25,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:51:25,232 INFO L85 PathProgramCache]: Analyzing trace with hash -812668617, now seen corresponding path program 1 times [2023-02-15 19:51:25,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:51:25,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108593566] [2023-02-15 19:51:25,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:51:25,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:51:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:51:26,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:51:26,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:51:26,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108593566] [2023-02-15 19:51:26,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108593566] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 19:51:26,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 19:51:26,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-02-15 19:51:26,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062237740] [2023-02-15 19:51:26,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 19:51:26,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-15 19:51:26,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:51:26,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-15 19:51:26,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-02-15 19:51:26,057 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. Second operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:51:26,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:51:26,247 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2023-02-15 19:51:26,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 19:51:26,248 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-15 19:51:26,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:51:26,250 INFO L225 Difference]: With dead ends: 29 [2023-02-15 19:51:26,250 INFO L226 Difference]: Without dead ends: 27 [2023-02-15 19:51:26,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-02-15 19:51:26,258 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 31 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 19:51:26,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 38 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 19:51:26,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-15 19:51:26,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 22. [2023-02-15 19:51:26,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 21 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) [2023-02-15 19:51:26,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2023-02-15 19:51:26,274 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 11 [2023-02-15 19:51:26,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:51:26,276 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2023-02-15 19:51:26,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:51:26,276 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2023-02-15 19:51:26,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 19:51:26,277 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:51:26,277 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:51:26,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 19:51:26,278 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:51:26,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:51:26,282 INFO L85 PathProgramCache]: Analyzing trace with hash -812666695, now seen corresponding path program 1 times [2023-02-15 19:51:26,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:51:26,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316438719] [2023-02-15 19:51:26,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:51:26,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:51:26,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:51:26,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:51:26,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:51:26,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316438719] [2023-02-15 19:51:26,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316438719] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 19:51:26,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 19:51:26,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-02-15 19:51:26,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601935208] [2023-02-15 19:51:26,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 19:51:26,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-15 19:51:26,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:51:26,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-15 19:51:26,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-02-15 19:51:26,765 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:51:26,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:51:26,885 INFO L93 Difference]: Finished difference Result 31 states and 42 transitions. [2023-02-15 19:51:26,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 19:51:26,886 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-15 19:51:26,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:51:26,887 INFO L225 Difference]: With dead ends: 31 [2023-02-15 19:51:26,887 INFO L226 Difference]: Without dead ends: 24 [2023-02-15 19:51:26,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-02-15 19:51:26,894 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 12 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 19:51:26,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 38 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 19:51:26,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-02-15 19:51:26,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2023-02-15 19:51:26,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.380952380952381) internal successors, (29), 21 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:51:26,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2023-02-15 19:51:26,901 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 29 transitions. Word has length 11 [2023-02-15 19:51:26,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:51:26,901 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 29 transitions. [2023-02-15 19:51:26,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:51:26,902 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2023-02-15 19:51:26,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-15 19:51:26,903 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:51:26,903 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:51:26,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 19:51:26,904 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:51:26,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:51:26,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1760681901, now seen corresponding path program 1 times [2023-02-15 19:51:26,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:51:26,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670391668] [2023-02-15 19:51:26,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:51:26,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:51:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:51:27,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:51:27,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:51:27,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670391668] [2023-02-15 19:51:27,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670391668] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 19:51:27,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378672951] [2023-02-15 19:51:27,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:51:27,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:51:27,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:51:27,635 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) [2023-02-15 19:51:27,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 19:51:27,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:51:27,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 52 conjunts are in the unsatisfiable core [2023-02-15 19:51:27,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:51:27,897 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-02-15 19:51:27,898 INFO L350 Elim1Store]: Elim1 eliminated variable 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 1 case distinctions, treesize of input 9 treesize of output 15 [2023-02-15 19:51:27,946 INFO L321 Elim1Store]: treesize reduction 46, result has 29.2 percent of original size [2023-02-15 19:51:27,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 94 [2023-02-15 19:51:27,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:27,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:27,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 18 treesize of output 26 [2023-02-15 19:51:27,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:27,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:27,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 34 treesize of output 42 [2023-02-15 19:51:28,083 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 72 treesize of output 41 [2023-02-15 19:51:28,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:28,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:28,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 41 treesize of output 29 [2023-02-15 19:51:28,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2023-02-15 19:51:28,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2023-02-15 19:51:28,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:28,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:28,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 23 [2023-02-15 19:51:28,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:28,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:28,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 23 [2023-02-15 19:51:28,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:28,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:28,407 INFO L321 Elim1Store]: treesize reduction 28, result has 42.9 percent of original size [2023-02-15 19:51:28,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 92 treesize of output 97 [2023-02-15 19:51:28,423 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-15 19:51:28,423 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 11 [2023-02-15 19:51:28,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:28,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:28,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 30 treesize of output 20 [2023-02-15 19:51:28,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:28,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 20 [2023-02-15 19:51:28,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 22 [2023-02-15 19:51:28,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 22 [2023-02-15 19:51:28,645 INFO L350 Elim1Store]: Elim1 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 67 treesize of output 47 [2023-02-15 19:51:28,650 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:51:28,666 INFO L321 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2023-02-15 19:51:28,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 42 [2023-02-15 19:51:28,673 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 13 [2023-02-15 19:51:28,789 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:51:28,790 INFO L350 Elim1Store]: Elim1 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 41 treesize of output 29 [2023-02-15 19:51:28,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:51:28,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:51:29,179 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:51:29,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378672951] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:51:29,179 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 19:51:29,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 18 [2023-02-15 19:51:29,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55907478] [2023-02-15 19:51:29,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 19:51:29,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-02-15 19:51:29,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:51:29,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-02-15 19:51:29,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=247, Unknown=1, NotChecked=0, Total=306 [2023-02-15 19:51:29,183 INFO L87 Difference]: Start difference. First operand 22 states and 29 transitions. Second operand has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:51:29,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:51:29,911 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2023-02-15 19:51:29,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 19:51:29,912 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-02-15 19:51:29,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:51:29,912 INFO L225 Difference]: With dead ends: 42 [2023-02-15 19:51:29,912 INFO L226 Difference]: Without dead ends: 32 [2023-02-15 19:51:29,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=140, Invalid=407, Unknown=5, NotChecked=0, Total=552 [2023-02-15 19:51:29,913 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 78 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 29 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 19:51:29,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 54 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 85 Invalid, 10 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 19:51:29,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-15 19:51:29,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 26. [2023-02-15 19:51:29,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 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) [2023-02-15 19:51:29,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2023-02-15 19:51:29,918 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 14 [2023-02-15 19:51:29,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:51:29,918 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2023-02-15 19:51:29,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:51:29,919 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2023-02-15 19:51:29,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-15 19:51:29,919 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:51:29,919 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:51:29,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-15 19:51:30,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:51:30,128 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:51:30,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:51:30,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1760679979, now seen corresponding path program 1 times [2023-02-15 19:51:30,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:51:30,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310069814] [2023-02-15 19:51:30,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:51:30,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:51:30,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:51:30,684 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:51:30,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:51:30,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310069814] [2023-02-15 19:51:30,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310069814] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 19:51:30,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694728373] [2023-02-15 19:51:30,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:51:30,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:51:30,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:51:30,686 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) [2023-02-15 19:51:30,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 19:51:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:51:30,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 56 conjunts are in the unsatisfiable core [2023-02-15 19:51:30,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:51:30,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2023-02-15 19:51:30,833 INFO L321 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2023-02-15 19:51:30,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 66 treesize of output 74 [2023-02-15 19:51:30,866 INFO L321 Elim1Store]: treesize reduction 55, result has 24.7 percent of original size [2023-02-15 19:51:30,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 91 [2023-02-15 19:51:30,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:30,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:30,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 18 treesize of output 26 [2023-02-15 19:51:30,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:30,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:30,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 34 treesize of output 42 [2023-02-15 19:51:30,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 75 [2023-02-15 19:51:30,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:30,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:30,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 75 treesize of output 53 [2023-02-15 19:51:30,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:30,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:30,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 121 [2023-02-15 19:51:31,039 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:51:31,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2023-02-15 19:51:31,069 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-15 19:51:31,070 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 18 [2023-02-15 19:51:31,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2023-02-15 19:51:31,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:31,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:31,211 INFO L350 Elim1Store]: Elim1 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 26 treesize of output 23 [2023-02-15 19:51:31,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:31,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:31,222 INFO L350 Elim1Store]: Elim1 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 26 treesize of output 23 [2023-02-15 19:51:31,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 22 [2023-02-15 19:51:31,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:31,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:31,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:31,241 INFO L350 Elim1Store]: Elim1 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 31 treesize of output 31 [2023-02-15 19:51:31,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:31,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 20 [2023-02-15 19:51:31,289 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-02-15 19:51:31,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-02-15 19:51:31,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 22 [2023-02-15 19:51:31,396 INFO L350 Elim1Store]: Elim1 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 52 treesize of output 36 [2023-02-15 19:51:31,400 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:51:31,402 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 30 [2023-02-15 19:51:31,406 INFO L350 Elim1Store]: Elim1 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 25 treesize of output 17 [2023-02-15 19:51:31,436 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-15 19:51:31,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 16 [2023-02-15 19:51:31,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:51:31,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:51:31,700 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:51:31,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694728373] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:51:31,701 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 19:51:31,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 16 [2023-02-15 19:51:31,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576137562] [2023-02-15 19:51:31,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 19:51:31,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-15 19:51:31,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:51:31,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-15 19:51:31,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2023-02-15 19:51:31,703 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 16 states, 16 states have (on average 2.125) internal successors, (34), 16 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:51:32,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:51:32,066 INFO L93 Difference]: Finished difference Result 35 states and 45 transitions. [2023-02-15 19:51:32,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 19:51:32,067 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.125) internal successors, (34), 16 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-02-15 19:51:32,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:51:32,067 INFO L225 Difference]: With dead ends: 35 [2023-02-15 19:51:32,067 INFO L226 Difference]: Without dead ends: 28 [2023-02-15 19:51:32,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2023-02-15 19:51:32,068 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 18 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 19:51:32,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 64 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 19:51:32,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-02-15 19:51:32,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 18. [2023-02-15 19:51:32,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 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) [2023-02-15 19:51:32,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2023-02-15 19:51:32,072 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 14 [2023-02-15 19:51:32,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:51:32,072 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2023-02-15 19:51:32,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.125) internal successors, (34), 16 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:51:32,073 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-02-15 19:51:32,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-15 19:51:32,073 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:51:32,073 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:51:32,085 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-15 19:51:32,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:51:32,274 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:51:32,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:51:32,275 INFO L85 PathProgramCache]: Analyzing trace with hash 187961508, now seen corresponding path program 1 times [2023-02-15 19:51:32,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:51:32,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859611706] [2023-02-15 19:51:32,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:51:32,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:51:32,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:51:32,777 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:51:32,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:51:32,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859611706] [2023-02-15 19:51:32,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859611706] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 19:51:32,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120080179] [2023-02-15 19:51:32,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:51:32,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:51:32,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:51:32,781 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) [2023-02-15 19:51:32,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 19:51:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:51:32,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-15 19:51:32,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:51:32,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2023-02-15 19:51:32,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:32,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:32,897 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 29 treesize of output 33 [2023-02-15 19:51:32,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:32,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2023-02-15 19:51:32,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:32,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2023-02-15 19:51:32,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2023-02-15 19:51:32,918 INFO L350 Elim1Store]: Elim1 eliminated variable 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 14 treesize of output 13 [2023-02-15 19:51:32,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:32,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:32,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 18 treesize of output 26 [2023-02-15 19:51:33,050 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-15 19:51:33,050 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 111 treesize of output 102 [2023-02-15 19:51:33,056 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 38 [2023-02-15 19:51:33,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 54 [2023-02-15 19:51:33,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2023-02-15 19:51:33,184 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-15 19:51:33,184 INFO L350 Elim1Store]: Elim1 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 36 treesize of output 16 [2023-02-15 19:51:33,206 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:51:33,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:51:33,285 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_515 (Array Int Int)) (v_ArrVal_518 (Array Int Int)) (v_ArrVal_517 Int)) (let ((.cse8 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base|) .cse8))) (let ((.cse0 (select |c_#memory_int| .cse2)) (.cse1 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~list~0#1.base|) .cse8))) (or (not (<= (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|) (select .cse0 .cse1)) v_ArrVal_517)) (< 100 (let ((.cse6 (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_515)) (.cse3 (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_518)) (.cse7 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (let ((.cse4 (select (select .cse3 |c_ULTIMATE.start_main_~list~0#1.base|) .cse7)) (.cse5 (+ (select (select .cse6 |c_ULTIMATE.start_main_~list~0#1.base|) .cse7) 4))) (select (select (store |c_#memory_int| .cse2 (store .cse0 .cse1 v_ArrVal_517)) (select (select .cse3 .cse4) .cse5)) (select (select .cse6 .cse4) .cse5)))))))))) is different from false [2023-02-15 19:51:33,308 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_515 (Array Int Int)) (v_ArrVal_518 (Array Int Int)) (v_ArrVal_517 Int)) (let ((.cse8 (+ |c_ULTIMATE.start_main_~head~0#1.offset| 4))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base|) .cse8))) (let ((.cse1 (select |c_#memory_int| .cse0)) (.cse2 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~head~0#1.base|) .cse8))) (or (< 100 (let ((.cse6 (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_515)) (.cse3 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_518)) (.cse7 (+ |c_ULTIMATE.start_main_~head~0#1.offset| 8))) (let ((.cse4 (select (select .cse3 |c_ULTIMATE.start_main_~head~0#1.base|) .cse7)) (.cse5 (+ (select (select .cse6 |c_ULTIMATE.start_main_~head~0#1.base|) .cse7) 4))) (select (select (store |c_#memory_int| .cse0 (store .cse1 .cse2 v_ArrVal_517)) (select (select .cse3 .cse4) .cse5)) (select (select .cse6 .cse4) .cse5))))) (not (<= (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) (select .cse1 .cse2)) v_ArrVal_517))))))) is different from false [2023-02-15 19:51:33,344 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2023-02-15 19:51:33,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120080179] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:51:33,345 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 19:51:33,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 7] total 19 [2023-02-15 19:51:33,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7284407] [2023-02-15 19:51:33,345 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 19:51:33,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-02-15 19:51:33,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:51:33,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-02-15 19:51:33,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=232, Unknown=2, NotChecked=62, Total=342 [2023-02-15 19:51:33,348 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 19 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 19 states have internal predecessors, (40), 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) [2023-02-15 19:51:38,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:51:38,692 INFO L93 Difference]: Finished difference Result 66 states and 86 transitions. [2023-02-15 19:51:38,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-15 19:51:38,693 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 19 states have internal predecessors, (40), 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 16 [2023-02-15 19:51:38,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:51:38,693 INFO L225 Difference]: With dead ends: 66 [2023-02-15 19:51:38,693 INFO L226 Difference]: Without dead ends: 59 [2023-02-15 19:51:38,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=197, Invalid=565, Unknown=2, NotChecked=106, Total=870 [2023-02-15 19:51:38,694 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 141 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 71 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 19:51:38,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 130 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 167 Invalid, 0 Unknown, 71 Unchecked, 0.3s Time] [2023-02-15 19:51:38,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-02-15 19:51:38,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 46. [2023-02-15 19:51:38,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.3555555555555556) internal successors, (61), 45 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) [2023-02-15 19:51:38,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 61 transitions. [2023-02-15 19:51:38,707 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 61 transitions. Word has length 16 [2023-02-15 19:51:38,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:51:38,707 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 61 transitions. [2023-02-15 19:51:38,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 19 states have internal predecessors, (40), 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) [2023-02-15 19:51:38,708 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2023-02-15 19:51:38,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-15 19:51:38,709 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:51:38,709 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:51:38,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-15 19:51:38,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:51:38,915 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:51:38,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:51:38,915 INFO L85 PathProgramCache]: Analyzing trace with hash 189810472, now seen corresponding path program 1 times [2023-02-15 19:51:38,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:51:38,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610193464] [2023-02-15 19:51:38,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:51:38,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:51:38,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:51:39,486 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:51:39,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:51:39,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610193464] [2023-02-15 19:51:39,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610193464] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 19:51:39,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636133612] [2023-02-15 19:51:39,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:51:39,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:51:39,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:51:39,488 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) [2023-02-15 19:51:39,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 19:51:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:51:39,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-15 19:51:39,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:51:39,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-15 19:51:39,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:39,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2023-02-15 19:51:39,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:39,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:39,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 18 treesize of output 26 [2023-02-15 19:51:39,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2023-02-15 19:51:39,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2023-02-15 19:51:39,769 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-15 19:51:39,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 52 [2023-02-15 19:51:39,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2023-02-15 19:51:39,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 31 [2023-02-15 19:51:39,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 50 [2023-02-15 19:51:39,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 30 [2023-02-15 19:51:39,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2023-02-15 19:51:40,012 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-15 19:51:40,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 16 [2023-02-15 19:51:40,018 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 19:51:40,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:51:42,219 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_614 (Array Int Int)) (v_ArrVal_613 (Array Int Int)) (v_ArrVal_615 (Array Int Int)) (v_ArrVal_616 Int)) (let ((.cse10 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)))) (let ((.cse7 (store |c_#memory_$Pointer$.offset| .cse10 v_ArrVal_613)) (.cse11 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~list~0#1.base|) .cse11)) (.cse9 (store |c_#memory_$Pointer$.base| .cse10 v_ArrVal_615))) (let ((.cse5 (select (select .cse9 |c_ULTIMATE.start_main_~list~0#1.base|) .cse11)) (.cse8 (+ .cse6 4))) (let ((.cse0 (store |c_#memory_int| .cse10 v_ArrVal_614)) (.cse1 (select (select .cse9 .cse5) .cse8))) (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select .cse7 .cse5) .cse8))) (let ((.cse4 (select .cse2 .cse3))) (or (<= 91 (select (select (store .cse0 .cse1 (store .cse2 .cse3 v_ArrVal_616)) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|)) (< .cse4 101) (not (<= .cse4 (+ (select (select .cse0 .cse5) .cse6) v_ArrVal_616)))))))))))) is different from false [2023-02-15 19:51:42,252 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_614 (Array Int Int)) (v_ArrVal_613 (Array Int Int)) (v_ArrVal_615 (Array Int Int)) (v_ArrVal_616 Int)) (let ((.cse10 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base|) (+ |c_ULTIMATE.start_main_~head~0#1.offset| 4)))) (let ((.cse7 (store |c_#memory_$Pointer$.offset| .cse10 v_ArrVal_613)) (.cse11 (+ |c_ULTIMATE.start_main_~head~0#1.offset| 8))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~head~0#1.base|) .cse11)) (.cse9 (store |c_#memory_$Pointer$.base| .cse10 v_ArrVal_615))) (let ((.cse5 (select (select .cse9 |c_ULTIMATE.start_main_~head~0#1.base|) .cse11)) (.cse8 (+ .cse6 4))) (let ((.cse1 (store |c_#memory_int| .cse10 v_ArrVal_614)) (.cse2 (select (select .cse9 .cse5) .cse8))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select .cse7 .cse5) .cse8))) (let ((.cse0 (select .cse3 .cse4))) (or (< .cse0 101) (<= 91 (select (select (store .cse1 .cse2 (store .cse3 .cse4 v_ArrVal_616)) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|)) (not (<= .cse0 (+ (select (select .cse1 .cse5) .cse6) v_ArrVal_616)))))))))))) is different from false [2023-02-15 19:51:42,303 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2023-02-15 19:51:42,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636133612] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:51:42,304 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 19:51:42,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 9] total 19 [2023-02-15 19:51:42,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646480704] [2023-02-15 19:51:42,304 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 19:51:42,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-02-15 19:51:42,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:51:42,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-02-15 19:51:42,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=229, Unknown=2, NotChecked=62, Total=342 [2023-02-15 19:51:42,306 INFO L87 Difference]: Start difference. First operand 46 states and 61 transitions. Second operand has 19 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 19 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) [2023-02-15 19:51:43,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:51:43,046 INFO L93 Difference]: Finished difference Result 86 states and 114 transitions. [2023-02-15 19:51:43,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 19:51:43,047 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 19 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) Word has length 16 [2023-02-15 19:51:43,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:51:43,048 INFO L225 Difference]: With dead ends: 86 [2023-02-15 19:51:43,048 INFO L226 Difference]: Without dead ends: 58 [2023-02-15 19:51:43,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=124, Invalid=344, Unknown=2, NotChecked=82, Total=552 [2023-02-15 19:51:43,049 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 94 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 40 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 19:51:43,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 116 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 109 Invalid, 0 Unknown, 40 Unchecked, 0.2s Time] [2023-02-15 19:51:43,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-02-15 19:51:43,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 47. [2023-02-15 19:51:43,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.2391304347826086) internal successors, (57), 46 states have internal predecessors, (57), 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) [2023-02-15 19:51:43,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions. [2023-02-15 19:51:43,059 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 57 transitions. Word has length 16 [2023-02-15 19:51:43,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:51:43,059 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 57 transitions. [2023-02-15 19:51:43,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 19 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) [2023-02-15 19:51:43,060 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2023-02-15 19:51:43,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-15 19:51:43,061 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:51:43,061 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:51:43,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-15 19:51:43,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:51:43,267 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:51:43,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:51:43,267 INFO L85 PathProgramCache]: Analyzing trace with hash -2098222328, now seen corresponding path program 1 times [2023-02-15 19:51:43,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:51:43,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918519389] [2023-02-15 19:51:43,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:51:43,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:51:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:51:44,298 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:51:44,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:51:44,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918519389] [2023-02-15 19:51:44,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918519389] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 19:51:44,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403954909] [2023-02-15 19:51:44,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:51:44,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:51:44,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:51:44,301 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) [2023-02-15 19:51:44,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 19:51:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:51:44,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 86 conjunts are in the unsatisfiable core [2023-02-15 19:51:44,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:51:44,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2023-02-15 19:51:44,476 INFO L321 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2023-02-15 19:51:44,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 66 treesize of output 74 [2023-02-15 19:51:44,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:44,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:44,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 48 treesize of output 55 [2023-02-15 19:51:44,517 INFO L321 Elim1Store]: treesize reduction 50, result has 26.5 percent of original size [2023-02-15 19:51:44,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 86 [2023-02-15 19:51:44,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:44,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:44,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 30 treesize of output 38 [2023-02-15 19:51:44,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-02-15 19:51:44,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:44,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 42 [2023-02-15 19:51:44,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:44,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:44,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 32 treesize of output 22 [2023-02-15 19:51:44,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2023-02-15 19:51:44,649 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-15 19:51:44,649 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 18 [2023-02-15 19:51:44,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2023-02-15 19:51:44,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:44,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:44,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 30 [2023-02-15 19:51:44,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2023-02-15 19:51:44,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:44,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:44,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 23 [2023-02-15 19:51:44,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:44,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:44,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:44,830 INFO L321 Elim1Store]: treesize reduction 28, result has 15.2 percent of original size [2023-02-15 19:51:44,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 31 [2023-02-15 19:51:44,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 22 [2023-02-15 19:51:44,858 INFO L321 Elim1Store]: treesize reduction 16, result has 56.8 percent of original size [2023-02-15 19:51:44,858 INFO L350 Elim1Store]: Elim1 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 22 treesize of output 30 [2023-02-15 19:51:44,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:44,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 20 [2023-02-15 19:51:45,118 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-15 19:51:45,118 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 124 [2023-02-15 19:51:45,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:45,125 INFO L350 Elim1Store]: Elim1 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 114 treesize of output 111 [2023-02-15 19:51:45,144 INFO L321 Elim1Store]: treesize reduction 45, result has 13.5 percent of original size [2023-02-15 19:51:45,144 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 38 [2023-02-15 19:51:45,350 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-02-15 19:51:45,351 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 51 [2023-02-15 19:51:45,413 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-02-15 19:51:45,414 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 75 treesize of output 42 [2023-02-15 19:51:45,446 INFO L321 Elim1Store]: treesize reduction 36, result has 42.9 percent of original size [2023-02-15 19:51:45,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 35 treesize of output 52 [2023-02-15 19:51:45,493 INFO L350 Elim1Store]: Elim1 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 22 treesize of output 10 [2023-02-15 19:51:45,497 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:51:45,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:51:45,864 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:51:45,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 946 treesize of output 904 [2023-02-15 19:51:46,296 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:51:46,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403954909] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:51:46,297 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 19:51:46,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 28 [2023-02-15 19:51:46,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565190252] [2023-02-15 19:51:46,297 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 19:51:46,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-02-15 19:51:46,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:51:46,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-02-15 19:51:46,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=647, Unknown=1, NotChecked=0, Total=756 [2023-02-15 19:51:46,300 INFO L87 Difference]: Start difference. First operand 47 states and 57 transitions. Second operand has 28 states, 28 states have (on average 1.75) internal successors, (49), 28 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:51:53,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:51:53,119 INFO L93 Difference]: Finished difference Result 71 states and 90 transitions. [2023-02-15 19:51:53,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-02-15 19:51:53,120 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.75) internal successors, (49), 28 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-02-15 19:51:53,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:51:53,121 INFO L225 Difference]: With dead ends: 71 [2023-02-15 19:51:53,121 INFO L226 Difference]: Without dead ends: 64 [2023-02-15 19:51:53,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=386, Invalid=1683, Unknown=1, NotChecked=0, Total=2070 [2023-02-15 19:51:53,122 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 69 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 34 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-02-15 19:51:53,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 138 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 286 Invalid, 7 Unknown, 0 Unchecked, 2.1s Time] [2023-02-15 19:51:53,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-02-15 19:51:53,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 49. [2023-02-15 19:51:53,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.25) internal successors, (60), 48 states have internal predecessors, (60), 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) [2023-02-15 19:51:53,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2023-02-15 19:51:53,132 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 19 [2023-02-15 19:51:53,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:51:53,132 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2023-02-15 19:51:53,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.75) internal successors, (49), 28 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:51:53,132 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2023-02-15 19:51:53,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-15 19:51:53,133 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:51:53,133 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:51:53,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-15 19:51:53,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:51:53,338 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:51:53,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:51:53,339 INFO L85 PathProgramCache]: Analyzing trace with hash -2096375286, now seen corresponding path program 1 times [2023-02-15 19:51:53,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:51:53,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858566659] [2023-02-15 19:51:53,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:51:53,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:51:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:51:54,667 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:51:54,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:51:54,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858566659] [2023-02-15 19:51:54,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858566659] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 19:51:54,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441224197] [2023-02-15 19:51:54,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:51:54,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:51:54,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:51:54,673 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) [2023-02-15 19:51:54,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 19:51:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:51:54,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 93 conjunts are in the unsatisfiable core [2023-02-15 19:51:54,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:51:54,828 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-15 19:51:54,829 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 18 [2023-02-15 19:51:54,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:54,862 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 29 treesize of output 33 [2023-02-15 19:51:54,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2023-02-15 19:51:54,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-02-15 19:51:54,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:54,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:54,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 18 treesize of output 26 [2023-02-15 19:51:54,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2023-02-15 19:51:54,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2023-02-15 19:51:54,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:54,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:54,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:54,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:54,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:54,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 51 [2023-02-15 19:51:55,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2023-02-15 19:51:55,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 31 treesize of output 30 [2023-02-15 19:51:55,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:55,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:55,017 INFO L350 Elim1Store]: Elim1 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 26 treesize of output 23 [2023-02-15 19:51:55,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:55,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:55,028 INFO L350 Elim1Store]: Elim1 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 26 treesize of output 23 [2023-02-15 19:51:55,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 22 [2023-02-15 19:51:55,054 INFO L321 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2023-02-15 19:51:55,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 30 [2023-02-15 19:51:55,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 22 [2023-02-15 19:51:55,383 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-02-15 19:51:55,384 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 173 treesize of output 154 [2023-02-15 19:51:55,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 82 treesize of output 54 [2023-02-15 19:51:55,408 INFO L350 Elim1Store]: Elim1 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 82 treesize of output 75 [2023-02-15 19:51:55,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:51:55,710 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:51:55,718 INFO L321 Elim1Store]: treesize reduction 25, result has 10.7 percent of original size [2023-02-15 19:51:55,718 INFO L350 Elim1Store]: Elim1 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 6 new quantified variables, introduced 9 case distinctions, treesize of input 202 treesize of output 110 [2023-02-15 19:51:55,731 INFO L321 Elim1Store]: treesize reduction 14, result has 17.6 percent of original size [2023-02-15 19:51:55,731 INFO L350 Elim1Store]: Elim1 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 6 new quantified variables, introduced 2 case distinctions, treesize of input 94 treesize of output 58 [2023-02-15 19:51:55,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 52 treesize of output 38 [2023-02-15 19:51:55,821 INFO L350 Elim1Store]: Elim1 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 41 treesize of output 17 [2023-02-15 19:51:55,826 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:51:55,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:51:56,058 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_975 (Array Int Int)) (v_ArrVal_974 (Array Int Int)) (v_ArrVal_978 Int) (v_ArrVal_977 Int)) (let ((.cse12 (+ |c_ULTIMATE.start_main_~head~0#1.offset| 4))) (let ((.cse11 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base|) .cse12))) (let ((.cse8 (store |c_#memory_$Pointer$.offset| .cse11 v_ArrVal_975)) (.cse13 (+ |c_ULTIMATE.start_main_~head~0#1.offset| 8))) (let ((.cse2 (select (select .cse8 |c_ULTIMATE.start_main_~head~0#1.base|) .cse13)) (.cse10 (store |c_#memory_$Pointer$.base| .cse11 v_ArrVal_974))) (let ((.cse1 (select (select .cse10 |c_ULTIMATE.start_main_~head~0#1.base|) .cse13)) (.cse9 (+ .cse2 4)) (.cse5 (select |c_#memory_int| .cse11)) (.cse6 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~head~0#1.base|) .cse12))) (let ((.cse0 (store |c_#memory_int| .cse11 (store .cse5 .cse6 v_ArrVal_977))) (.cse7 (select (select .cse10 .cse1) .cse9))) (let ((.cse3 (select .cse0 .cse7)) (.cse4 (select (select .cse8 .cse1) .cse9))) (or (not (<= (+ (select (select .cse0 .cse1) .cse2) v_ArrVal_978) (select .cse3 .cse4))) (not (<= v_ArrVal_977 (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) (select .cse5 .cse6)))) (<= (select (select (store .cse0 .cse7 (store .cse3 .cse4 v_ArrVal_978)) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) 109)))))))))) is different from false [2023-02-15 19:51:56,139 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:51:56,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 2139 treesize of output 1731 [2023-02-15 19:51:56,166 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:51:56,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 1719 treesize of output 1575 [2023-02-15 19:51:56,873 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2023-02-15 19:51:56,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441224197] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:51:56,874 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 19:51:56,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 9] total 24 [2023-02-15 19:51:56,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071093885] [2023-02-15 19:51:56,875 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 19:51:56,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-15 19:51:56,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:51:56,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-15 19:51:56,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=404, Unknown=5, NotChecked=42, Total=552 [2023-02-15 19:51:56,876 INFO L87 Difference]: Start difference. First operand 49 states and 60 transitions. Second operand has 24 states, 24 states have (on average 2.0416666666666665) internal successors, (49), 24 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:52:04,423 WARN L233 SmtUtils]: Spent 6.60s on a formula simplification. DAG size of input: 205 DAG size of output: 184 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 19:52:05,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-02-15 19:52:17,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-02-15 19:52:21,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:52:21,064 INFO L93 Difference]: Finished difference Result 100 states and 124 transitions. [2023-02-15 19:52:21,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-02-15 19:52:21,065 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.0416666666666665) internal successors, (49), 24 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-02-15 19:52:21,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:52:21,065 INFO L225 Difference]: With dead ends: 100 [2023-02-15 19:52:21,065 INFO L226 Difference]: Without dead ends: 98 [2023-02-15 19:52:21,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 21.1s TimeCoverageRelationStatistics Valid=342, Invalid=1062, Unknown=6, NotChecked=72, Total=1482 [2023-02-15 19:52:21,067 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 132 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 50 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-02-15 19:52:21,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 137 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 255 Invalid, 3 Unknown, 49 Unchecked, 4.1s Time] [2023-02-15 19:52:21,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-02-15 19:52:21,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 75. [2023-02-15 19:52:21,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.3108108108108107) internal successors, (97), 74 states have internal predecessors, (97), 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) [2023-02-15 19:52:21,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 97 transitions. [2023-02-15 19:52:21,080 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 97 transitions. Word has length 19 [2023-02-15 19:52:21,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:52:21,080 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 97 transitions. [2023-02-15 19:52:21,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.0416666666666665) internal successors, (49), 24 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:52:21,081 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 97 transitions. [2023-02-15 19:52:21,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-15 19:52:21,081 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:52:21,082 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:52:21,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-15 19:52:21,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:52:21,287 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:52:21,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:52:21,287 INFO L85 PathProgramCache]: Analyzing trace with hash -2096373364, now seen corresponding path program 1 times [2023-02-15 19:52:21,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:52:21,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061440330] [2023-02-15 19:52:21,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:52:21,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:52:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:52:22,447 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:52:22,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:52:22,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061440330] [2023-02-15 19:52:22,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061440330] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 19:52:22,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951677683] [2023-02-15 19:52:22,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:52:22,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:52:22,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:52:22,449 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) [2023-02-15 19:52:22,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-15 19:52:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:52:22,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 72 conjunts are in the unsatisfiable core [2023-02-15 19:52:22,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:52:22,610 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-15 19:52:22,611 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 18 [2023-02-15 19:52:22,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2023-02-15 19:52:22,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 25 treesize of output 30 [2023-02-15 19:52:22,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:52:22,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:52:22,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 28 [2023-02-15 19:52:22,737 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 20 treesize of output 28 [2023-02-15 19:52:22,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:52:22,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:52:22,746 INFO L350 Elim1Store]: Elim1 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 35 treesize of output 30 [2023-02-15 19:52:22,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2023-02-15 19:52:22,771 INFO L321 Elim1Store]: treesize reduction 27, result has 57.1 percent of original size [2023-02-15 19:52:22,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 55 [2023-02-15 19:52:22,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 46 [2023-02-15 19:52:22,783 INFO L350 Elim1Store]: Elim1 eliminated variable 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 10 treesize of output 9 [2023-02-15 19:52:22,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:52:22,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2023-02-15 19:52:22,814 INFO L321 Elim1Store]: treesize reduction 23, result has 47.7 percent of original size [2023-02-15 19:52:22,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 32 [2023-02-15 19:52:22,835 INFO L321 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2023-02-15 19:52:22,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 30 [2023-02-15 19:52:23,009 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-02-15 19:52:23,010 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 105 treesize of output 100 [2023-02-15 19:52:23,015 INFO L350 Elim1Store]: Elim1 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 35 treesize of output 40 [2023-02-15 19:52:23,023 INFO L350 Elim1Store]: Elim1 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 26 treesize of output 28 [2023-02-15 19:52:23,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:52:23,214 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:52:23,219 INFO L321 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2023-02-15 19:52:23,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 194 treesize of output 100 [2023-02-15 19:52:23,233 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-02-15 19:52:23,234 INFO L350 Elim1Store]: Elim1 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 80 treesize of output 46 [2023-02-15 19:52:23,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 26 [2023-02-15 19:52:23,278 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-15 19:52:23,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 16 [2023-02-15 19:52:23,281 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:52:23,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:52:25,460 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1145 (Array Int Int)) (v_ArrVal_1147 Int) (v_ArrVal_1144 (Array Int Int)) (v_ArrVal_1143 (Array Int Int))) (let ((.cse10 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)))) (let ((.cse7 (store |c_#memory_$Pointer$.offset| .cse10 v_ArrVal_1143)) (.cse11 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (let ((.cse3 (select (select .cse7 |c_ULTIMATE.start_main_~list~0#1.base|) .cse11)) (.cse9 (store |c_#memory_$Pointer$.base| .cse10 v_ArrVal_1144))) (let ((.cse2 (select (select .cse9 |c_ULTIMATE.start_main_~list~0#1.base|) .cse11)) (.cse8 (+ .cse3 4))) (let ((.cse1 (store |c_#memory_int| .cse10 v_ArrVal_1145)) (.cse4 (select (select .cse9 .cse2) .cse8))) (let ((.cse5 (select .cse1 .cse4)) (.cse6 (select (select .cse7 .cse2) .cse8))) (let ((.cse0 (select .cse5 .cse6))) (or (not (<= .cse0 (+ v_ArrVal_1147 (select (select .cse1 .cse2) .cse3)))) (< .cse0 101) (<= 91 (select (select (store .cse1 .cse4 (store .cse5 .cse6 v_ArrVal_1147)) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|))))))))))) is different from false [2023-02-15 19:52:25,491 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1145 (Array Int Int)) (v_ArrVal_1147 Int) (v_ArrVal_1144 (Array Int Int)) (v_ArrVal_1143 (Array Int Int))) (let ((.cse10 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base|) (+ |c_ULTIMATE.start_main_~head~0#1.offset| 4)))) (let ((.cse7 (store |c_#memory_$Pointer$.offset| .cse10 v_ArrVal_1143)) (.cse11 (+ |c_ULTIMATE.start_main_~head~0#1.offset| 8))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~head~0#1.base|) .cse11)) (.cse9 (store |c_#memory_$Pointer$.base| .cse10 v_ArrVal_1144))) (let ((.cse5 (select (select .cse9 |c_ULTIMATE.start_main_~head~0#1.base|) .cse11)) (.cse8 (+ .cse6 4))) (let ((.cse0 (store |c_#memory_int| .cse10 v_ArrVal_1145)) (.cse1 (select (select .cse9 .cse5) .cse8))) (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select .cse7 .cse5) .cse8))) (let ((.cse4 (select .cse2 .cse3))) (or (<= 91 (select (select (store .cse0 .cse1 (store .cse2 .cse3 v_ArrVal_1147)) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|)) (< .cse4 101) (not (<= .cse4 (+ (select (select .cse0 .cse5) .cse6) v_ArrVal_1147)))))))))))) is different from false [2023-02-15 19:52:25,553 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:52:25,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 1656 treesize of output 1428 [2023-02-15 19:52:25,580 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:52:25,580 INFO L350 Elim1Store]: Elim1 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 1416 treesize of output 1370 [2023-02-15 19:52:25,651 INFO L321 Elim1Store]: treesize reduction 16, result has 66.7 percent of original size [2023-02-15 19:52:25,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 2631 treesize of output 2398 [2023-02-15 19:52:25,684 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:52:25,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 1602 treesize of output 1555 [2023-02-15 19:52:29,158 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:52:29,159 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 97584 treesize of output 93857 [2023-02-15 19:52:30,456 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:52:30,461 INFO L350 Elim1Store]: Elim1 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 7 new quantified variables, introduced 21 case distinctions, treesize of input 2470640 treesize of output 2141326 [2023-02-15 19:52:32,675 INFO L217 Elim1Store]: Index analysis took 264 ms [2023-02-15 19:52:37,356 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:52:37,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 19 select indices, 19 select index equivalence classes, 0 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 171 case distinctions, treesize of input 2182041 treesize of output 2143543 [2023-02-15 19:52:41,288 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:52:41,291 INFO L350 Elim1Store]: Elim1 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 6 new quantified variables, introduced 10 case distinctions, treesize of input 1729731 treesize of output 1692069 [2023-02-15 19:52:50,421 INFO L217 Elim1Store]: Index analysis took 2161 ms [2023-02-15 19:53:05,716 WARN L233 SmtUtils]: Spent 15.28s on a formula simplification that was a NOOP. DAG size: 753 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-02-15 19:53:05,716 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:53:05,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 19 select indices, 19 select index equivalence classes, 0 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 171 case distinctions, treesize of input 2107497 treesize of output 2093155 [2023-02-15 19:53:12,619 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:53:12,623 INFO L350 Elim1Store]: Elim1 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 6 new quantified variables, introduced 10 case distinctions, treesize of input 2095235 treesize of output 2022613 [2023-02-15 19:53:32,299 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:53:32,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 17 [2023-02-15 19:53:32,900 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:53:32,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 10 treesize of output 13 [2023-02-15 19:53:33,187 INFO L321 Elim1Store]: treesize reduction 5, result has 16.7 percent of original size [2023-02-15 19:53:33,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 1 [2023-02-15 19:53:33,517 INFO L321 Elim1Store]: treesize reduction 12, result has 7.7 percent of original size [2023-02-15 19:53:33,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 1 [2023-02-15 19:53:33,926 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:53:33,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 17 [2023-02-15 19:53:34,418 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:53:34,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 10 treesize of output 13