./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-2.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/list-ext2-properties/list_and_tree_cnstr-2.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 073ee5c5f9e0a51509973bbde311a97e7673effbb0d5db6a027ba4e786762a02 --- Real Ultimate output --- This is Ultimate 0.2.2-?-e8d5503-m [2023-02-15 19:40:45,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 19:40:45,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 19:40:45,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 19:40:45,634 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 19:40:45,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 19:40:45,638 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 19:40:45,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 19:40:45,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 19:40:45,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 19:40:45,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 19:40:45,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 19:40:45,648 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 19:40:45,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 19:40:45,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 19:40:45,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 19:40:45,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 19:40:45,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 19:40:45,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 19:40:45,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 19:40:45,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 19:40:45,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 19:40:45,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 19:40:45,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 19:40:45,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 19:40:45,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 19:40:45,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 19:40:45,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 19:40:45,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 19:40:45,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 19:40:45,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 19:40:45,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 19:40:45,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 19:40:45,675 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 19:40:45,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 19:40:45,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 19:40:45,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 19:40:45,676 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 19:40:45,676 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 19:40:45,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 19:40:45,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 19:40:45,679 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-15 19:40:45,707 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 19:40:45,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 19:40:45,708 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 19:40:45,708 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 19:40:45,709 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 19:40:45,709 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 19:40:45,709 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 19:40:45,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 19:40:45,710 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 19:40:45,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 19:40:45,710 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 19:40:45,711 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 19:40:45,711 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 19:40:45,711 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 19:40:45,711 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 19:40:45,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 19:40:45,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 19:40:45,711 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 19:40:45,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 19:40:45,712 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 19:40:45,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 19:40:45,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 19:40:45,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 19:40:45,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 19:40:45,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 19:40:45,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 19:40:45,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 19:40:45,713 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 19:40:45,713 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 19:40:45,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 19:40:45,713 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 19:40:45,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 19:40:45,714 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 19:40:45,714 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 19:40:45,714 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 19:40:45,714 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 073ee5c5f9e0a51509973bbde311a97e7673effbb0d5db6a027ba4e786762a02 [2023-02-15 19:40:45,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 19:40:45,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 19:40:45,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 19:40:45,926 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 19:40:45,926 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 19:40:45,927 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-2.i [2023-02-15 19:40:46,959 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 19:40:47,245 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 19:40:47,245 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-2.i [2023-02-15 19:40:47,257 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3aaf5483e/170f6fe4ea0a460791b09c59851ab4ec/FLAGfe1ffe218 [2023-02-15 19:40:47,269 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3aaf5483e/170f6fe4ea0a460791b09c59851ab4ec [2023-02-15 19:40:47,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 19:40:47,272 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 19:40:47,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 19:40:47,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 19:40:47,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 19:40:47,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 07:40:47" (1/1) ... [2023-02-15 19:40:47,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ec37e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:47, skipping insertion in model container [2023-02-15 19:40:47,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 07:40:47" (1/1) ... [2023-02-15 19:40:47,283 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 19:40:47,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 19:40:47,572 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/list-ext2-properties/list_and_tree_cnstr-2.i[24291,24304] [2023-02-15 19:40:47,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 19:40:47,588 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 19:40:47,615 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/list-ext2-properties/list_and_tree_cnstr-2.i[24291,24304] [2023-02-15 19:40:47,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 19:40:47,634 INFO L208 MainTranslator]: Completed translation [2023-02-15 19:40:47,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:47 WrapperNode [2023-02-15 19:40:47,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 19:40:47,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 19:40:47,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 19:40:47,636 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 19:40:47,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:47" (1/1) ... [2023-02-15 19:40:47,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:47" (1/1) ... [2023-02-15 19:40:47,672 INFO L138 Inliner]: procedures = 122, calls = 54, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 205 [2023-02-15 19:40:47,672 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 19:40:47,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 19:40:47,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 19:40:47,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 19:40:47,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:47" (1/1) ... [2023-02-15 19:40:47,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:47" (1/1) ... [2023-02-15 19:40:47,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:47" (1/1) ... [2023-02-15 19:40:47,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:47" (1/1) ... [2023-02-15 19:40:47,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:47" (1/1) ... [2023-02-15 19:40:47,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:47" (1/1) ... [2023-02-15 19:40:47,695 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:47" (1/1) ... [2023-02-15 19:40:47,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:47" (1/1) ... [2023-02-15 19:40:47,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 19:40:47,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 19:40:47,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 19:40:47,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 19:40:47,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:47" (1/1) ... [2023-02-15 19:40:47,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 19:40:47,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:40:47,729 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 19:40:47,766 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 19:40:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2023-02-15 19:40:47,778 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2023-02-15 19:40:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-15 19:40:47,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-15 19:40:47,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-15 19:40:47,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 19:40:47,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-15 19:40:47,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-02-15 19:40:47,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-15 19:40:47,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 19:40:47,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 19:40:47,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 19:40:47,886 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 19:40:47,888 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 19:40:47,929 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2023-02-15 19:40:48,104 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 19:40:48,108 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 19:40:48,108 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2023-02-15 19:40:48,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 07:40:48 BoogieIcfgContainer [2023-02-15 19:40:48,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 19:40:48,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 19:40:48,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 19:40:48,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 19:40:48,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 07:40:47" (1/3) ... [2023-02-15 19:40:48,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d41445c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 07:40:48, skipping insertion in model container [2023-02-15 19:40:48,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:47" (2/3) ... [2023-02-15 19:40:48,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d41445c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 07:40:48, skipping insertion in model container [2023-02-15 19:40:48,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 07:40:48" (3/3) ... [2023-02-15 19:40:48,133 INFO L112 eAbstractionObserver]: Analyzing ICFG list_and_tree_cnstr-2.i [2023-02-15 19:40:48,158 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 19:40:48,158 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-15 19:40:48,214 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 19:40:48,219 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;@109a6db6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 19:40:48,220 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-15 19:40:48,223 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 47 states have (on average 1.6595744680851063) internal successors, (78), 50 states have internal predecessors, (78), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:40:48,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-15 19:40:48,230 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:40:48,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:40:48,231 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:40:48,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:40:48,235 INFO L85 PathProgramCache]: Analyzing trace with hash -146872147, now seen corresponding path program 1 times [2023-02-15 19:40:48,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:40:48,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141886267] [2023-02-15 19:40:48,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:48,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:40:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:48,424 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 19:40:48,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:40:48,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141886267] [2023-02-15 19:40:48,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141886267] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 19:40:48,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 19:40:48,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 19:40:48,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464818343] [2023-02-15 19:40:48,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 19:40:48,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-15 19:40:48,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:40:48,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-15 19:40:48,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 19:40:48,465 INFO L87 Difference]: Start difference. First operand has 52 states, 47 states have (on average 1.6595744680851063) internal successors, (78), 50 states have internal predecessors, (78), 3 states have call successors, (3), 1 states have call predecessors, (3), 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 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:40:48,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:40:48,480 INFO L93 Difference]: Finished difference Result 102 states and 160 transitions. [2023-02-15 19:40:48,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 19:40:48,484 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-02-15 19:40:48,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:40:48,488 INFO L225 Difference]: With dead ends: 102 [2023-02-15 19:40:48,489 INFO L226 Difference]: Without dead ends: 43 [2023-02-15 19:40:48,495 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 19:40:48,499 INFO L413 NwaCegarLoop]: 72 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, 72 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 19:40:48,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 19:40:48,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-02-15 19:40:48,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-02-15 19:40:48,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 42 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 19:40:48,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 60 transitions. [2023-02-15 19:40:48,522 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 60 transitions. Word has length 16 [2023-02-15 19:40:48,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:40:48,523 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 60 transitions. [2023-02-15 19:40:48,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:40:48,523 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 60 transitions. [2023-02-15 19:40:48,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-15 19:40:48,524 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:40:48,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:40:48,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 19:40:48,524 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:40:48,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:40:48,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1237728308, now seen corresponding path program 1 times [2023-02-15 19:40:48,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:40:48,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873300157] [2023-02-15 19:40:48,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:48,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:40:48,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:48,621 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 19:40:48,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:40:48,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873300157] [2023-02-15 19:40:48,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873300157] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 19:40:48,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 19:40:48,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 19:40:48,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105759764] [2023-02-15 19:40:48,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 19:40:48,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 19:40:48,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:40:48,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 19:40:48,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 19:40:48,624 INFO L87 Difference]: Start difference. First operand 43 states and 60 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 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 19:40:48,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:40:48,635 INFO L93 Difference]: Finished difference Result 71 states and 97 transitions. [2023-02-15 19:40:48,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 19:40:48,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2023-02-15 19:40:48,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:40:48,637 INFO L225 Difference]: With dead ends: 71 [2023-02-15 19:40:48,637 INFO L226 Difference]: Without dead ends: 51 [2023-02-15 19:40:48,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 19:40:48,638 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 30 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 19:40:48,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 94 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 19:40:48,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-02-15 19:40:48,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-02-15 19:40:48,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.46) internal successors, (73), 50 states have internal predecessors, (73), 0 states have call successors, (0), 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 19:40:48,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 73 transitions. [2023-02-15 19:40:48,644 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 73 transitions. Word has length 21 [2023-02-15 19:40:48,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:40:48,645 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 73 transitions. [2023-02-15 19:40:48,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 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 19:40:48,645 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 73 transitions. [2023-02-15 19:40:48,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-15 19:40:48,646 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:40:48,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:40:48,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 19:40:48,646 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:40:48,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:40:48,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1368149959, now seen corresponding path program 1 times [2023-02-15 19:40:48,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:40:48,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321686605] [2023-02-15 19:40:48,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:48,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:40:48,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:48,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:40:48,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:40:48,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321686605] [2023-02-15 19:40:48,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321686605] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 19:40:48,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 19:40:48,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 19:40:48,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620831027] [2023-02-15 19:40:48,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 19:40:48,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 19:40:48,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:40:48,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 19:40:48,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 19:40:48,884 INFO L87 Difference]: Start difference. First operand 51 states and 73 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 19:40:49,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:40:49,101 INFO L93 Difference]: Finished difference Result 142 states and 208 transitions. [2023-02-15 19:40:49,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 19:40:49,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-02-15 19:40:49,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:40:49,103 INFO L225 Difference]: With dead ends: 142 [2023-02-15 19:40:49,103 INFO L226 Difference]: Without dead ends: 106 [2023-02-15 19:40:49,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-15 19:40:49,104 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 79 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 19:40:49,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 168 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 19:40:49,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-02-15 19:40:49,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 74. [2023-02-15 19:40:49,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.4931506849315068) internal successors, (109), 73 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:40:49,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 109 transitions. [2023-02-15 19:40:49,114 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 109 transitions. Word has length 27 [2023-02-15 19:40:49,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:40:49,114 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 109 transitions. [2023-02-15 19:40:49,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 19:40:49,114 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 109 transitions. [2023-02-15 19:40:49,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-15 19:40:49,115 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:40:49,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:40:49,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 19:40:49,116 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:40:49,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:40:49,116 INFO L85 PathProgramCache]: Analyzing trace with hash 2109168887, now seen corresponding path program 1 times [2023-02-15 19:40:49,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:40:49,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639667509] [2023-02-15 19:40:49,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:49,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:40:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:49,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 19:40:49,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:40:49,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639667509] [2023-02-15 19:40:49,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639667509] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 19:40:49,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 19:40:49,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 19:40:49,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984974509] [2023-02-15 19:40:49,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 19:40:49,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 19:40:49,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:40:49,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 19:40:49,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 19:40:49,253 INFO L87 Difference]: Start difference. First operand 74 states and 109 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 19:40:49,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:40:49,347 INFO L93 Difference]: Finished difference Result 99 states and 138 transitions. [2023-02-15 19:40:49,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 19:40:49,348 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-02-15 19:40:49,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:40:49,354 INFO L225 Difference]: With dead ends: 99 [2023-02-15 19:40:49,354 INFO L226 Difference]: Without dead ends: 95 [2023-02-15 19:40:49,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-15 19:40:49,361 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 17 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 19:40:49,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 194 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 19:40:49,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-02-15 19:40:49,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 83. [2023-02-15 19:40:49,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.475609756097561) internal successors, (121), 82 states have internal predecessors, (121), 0 states have call successors, (0), 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 19:40:49,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 121 transitions. [2023-02-15 19:40:49,377 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 121 transitions. Word has length 27 [2023-02-15 19:40:49,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:40:49,377 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 121 transitions. [2023-02-15 19:40:49,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 19:40:49,378 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 121 transitions. [2023-02-15 19:40:49,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-15 19:40:49,383 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:40:49,383 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:40:49,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 19:40:49,383 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:40:49,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:40:49,385 INFO L85 PathProgramCache]: Analyzing trace with hash -264583150, now seen corresponding path program 1 times [2023-02-15 19:40:49,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:40:49,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383271374] [2023-02-15 19:40:49,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:49,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:40:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:49,531 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 19:40:49,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:40:49,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383271374] [2023-02-15 19:40:49,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383271374] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 19:40:49,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 19:40:49,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 19:40:49,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486715162] [2023-02-15 19:40:49,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 19:40:49,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 19:40:49,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:40:49,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 19:40:49,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 19:40:49,535 INFO L87 Difference]: Start difference. First operand 83 states and 121 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 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 19:40:49,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:40:49,616 INFO L93 Difference]: Finished difference Result 101 states and 140 transitions. [2023-02-15 19:40:49,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 19:40:49,617 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 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) Word has length 29 [2023-02-15 19:40:49,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:40:49,618 INFO L225 Difference]: With dead ends: 101 [2023-02-15 19:40:49,619 INFO L226 Difference]: Without dead ends: 93 [2023-02-15 19:40:49,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-15 19:40:49,624 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 15 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 19:40:49,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 199 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 19:40:49,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-02-15 19:40:49,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 81. [2023-02-15 19:40:49,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.475) internal successors, (118), 80 states have internal predecessors, (118), 0 states have call successors, (0), 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 19:40:49,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 118 transitions. [2023-02-15 19:40:49,634 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 118 transitions. Word has length 29 [2023-02-15 19:40:49,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:40:49,635 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 118 transitions. [2023-02-15 19:40:49,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 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 19:40:49,635 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 118 transitions. [2023-02-15 19:40:49,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-15 19:40:49,636 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:40:49,636 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:40:49,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-15 19:40:49,636 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:40:49,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:40:49,637 INFO L85 PathProgramCache]: Analyzing trace with hash 760119826, now seen corresponding path program 1 times [2023-02-15 19:40:49,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:40:49,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449893917] [2023-02-15 19:40:49,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:49,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:40:49,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:49,713 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 19:40:49,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:40:49,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449893917] [2023-02-15 19:40:49,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449893917] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 19:40:49,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 19:40:49,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 19:40:49,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858071423] [2023-02-15 19:40:49,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 19:40:49,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 19:40:49,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:40:49,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 19:40:49,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 19:40:49,716 INFO L87 Difference]: Start difference. First operand 81 states and 118 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 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 19:40:49,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:40:49,775 INFO L93 Difference]: Finished difference Result 101 states and 140 transitions. [2023-02-15 19:40:49,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 19:40:49,775 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 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) Word has length 29 [2023-02-15 19:40:49,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:40:49,776 INFO L225 Difference]: With dead ends: 101 [2023-02-15 19:40:49,776 INFO L226 Difference]: Without dead ends: 90 [2023-02-15 19:40:49,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-15 19:40:49,777 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 13 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 19:40:49,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 187 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 19:40:49,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-02-15 19:40:49,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 78. [2023-02-15 19:40:49,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.4805194805194806) internal successors, (114), 77 states have internal predecessors, (114), 0 states have call successors, (0), 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 19:40:49,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 114 transitions. [2023-02-15 19:40:49,782 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 114 transitions. Word has length 29 [2023-02-15 19:40:49,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:40:49,782 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 114 transitions. [2023-02-15 19:40:49,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 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 19:40:49,783 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 114 transitions. [2023-02-15 19:40:49,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-15 19:40:49,783 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:40:49,783 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:40:49,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-15 19:40:49,784 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:40:49,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:40:49,784 INFO L85 PathProgramCache]: Analyzing trace with hash -219954082, now seen corresponding path program 1 times [2023-02-15 19:40:49,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:40:49,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317604129] [2023-02-15 19:40:49,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:49,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:40:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:49,993 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 19:40:49,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:40:49,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317604129] [2023-02-15 19:40:49,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317604129] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 19:40:49,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548646220] [2023-02-15 19:40:49,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:49,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:40:49,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:40:49,996 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 19:40:49,997 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 19:40:50,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:50,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 33 conjunts are in the unsatisfiable core [2023-02-15 19:40:50,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:40:50,127 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 6 treesize of output 5 [2023-02-15 19:40:50,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-15 19:40:50,216 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-15 19:40:50,217 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 19:40:50,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:40:50,265 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 21 treesize of output 20 [2023-02-15 19:40:50,305 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 14 treesize of output 16 [2023-02-15 19:40:50,332 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 15 treesize of output 7 [2023-02-15 19:40:50,334 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 19:40:50,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:40:50,361 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_202 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_202) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 2)) is different from false [2023-02-15 19:40:50,414 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:50,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 29 [2023-02-15 19:40:50,433 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:50,433 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 30 treesize of output 33 [2023-02-15 19:40:50,439 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 9 treesize of output 7 [2023-02-15 19:40:50,529 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2023-02-15 19:40:50,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548646220] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:40:50,529 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 19:40:50,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2023-02-15 19:40:50,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117021648] [2023-02-15 19:40:50,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 19:40:50,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-15 19:40:50,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:40:50,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-15 19:40:50,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=190, Unknown=3, NotChecked=28, Total=272 [2023-02-15 19:40:50,531 INFO L87 Difference]: Start difference. First operand 78 states and 114 transitions. Second operand has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 17 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:40:50,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:40:50,765 INFO L93 Difference]: Finished difference Result 103 states and 142 transitions. [2023-02-15 19:40:50,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-15 19:40:50,766 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 17 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2023-02-15 19:40:50,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:40:50,766 INFO L225 Difference]: With dead ends: 103 [2023-02-15 19:40:50,766 INFO L226 Difference]: Without dead ends: 99 [2023-02-15 19:40:50,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=315, Unknown=3, NotChecked=38, Total=462 [2023-02-15 19:40:50,767 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 158 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 19:40:50,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 287 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 117 Invalid, 0 Unknown, 33 Unchecked, 0.1s Time] [2023-02-15 19:40:50,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-02-15 19:40:50,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 87. [2023-02-15 19:40:50,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 86 states have (on average 1.4534883720930232) internal successors, (125), 86 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:40:50,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 125 transitions. [2023-02-15 19:40:50,772 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 125 transitions. Word has length 31 [2023-02-15 19:40:50,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:40:50,772 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 125 transitions. [2023-02-15 19:40:50,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 17 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:40:50,773 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 125 transitions. [2023-02-15 19:40:50,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-15 19:40:50,773 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:40:50,773 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:40:50,781 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 19:40:50,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:40:50,979 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:40:50,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:40:50,979 INFO L85 PathProgramCache]: Analyzing trace with hash 643447582, now seen corresponding path program 1 times [2023-02-15 19:40:50,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:40:50,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974448471] [2023-02-15 19:40:50,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:50,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:40:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:51,168 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 19:40:51,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:40:51,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974448471] [2023-02-15 19:40:51,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974448471] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 19:40:51,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070357154] [2023-02-15 19:40:51,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:51,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:40:51,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:40:51,170 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 19:40:51,185 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 19:40:51,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:51,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 31 conjunts are in the unsatisfiable core [2023-02-15 19:40:51,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:40:51,273 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 6 treesize of output 5 [2023-02-15 19:40:51,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-15 19:40:51,323 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-15 19:40:51,323 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 19:40:51,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:40:51,351 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 21 treesize of output 20 [2023-02-15 19:40:51,385 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 14 treesize of output 16 [2023-02-15 19:40:51,399 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 15 treesize of output 7 [2023-02-15 19:40:51,401 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 19:40:51,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:40:51,463 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 169 treesize of output 161 [2023-02-15 19:40:51,557 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 19:40:51,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070357154] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:40:51,557 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 19:40:51,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2023-02-15 19:40:51,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976715068] [2023-02-15 19:40:51,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 19:40:51,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-15 19:40:51,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:40:51,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-15 19:40:51,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2023-02-15 19:40:51,559 INFO L87 Difference]: Start difference. First operand 87 states and 125 transitions. Second operand has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 0 states have call successors, (0), 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 19:40:51,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:40:51,826 INFO L93 Difference]: Finished difference Result 99 states and 138 transitions. [2023-02-15 19:40:51,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 19:40:51,827 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2023-02-15 19:40:51,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:40:51,827 INFO L225 Difference]: With dead ends: 99 [2023-02-15 19:40:51,827 INFO L226 Difference]: Without dead ends: 93 [2023-02-15 19:40:51,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2023-02-15 19:40:51,828 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 68 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 19:40:51,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 472 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 19:40:51,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-02-15 19:40:51,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 89. [2023-02-15 19:40:51,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 88 states have (on average 1.4431818181818181) internal successors, (127), 88 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:40:51,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 127 transitions. [2023-02-15 19:40:51,833 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 127 transitions. Word has length 31 [2023-02-15 19:40:51,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:40:51,833 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 127 transitions. [2023-02-15 19:40:51,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 0 states have call successors, (0), 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 19:40:51,833 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions. [2023-02-15 19:40:51,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-02-15 19:40:51,834 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:40:51,834 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:40:51,839 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 19:40:52,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-02-15 19:40:52,039 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:40:52,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:40:52,039 INFO L85 PathProgramCache]: Analyzing trace with hash -873795143, now seen corresponding path program 1 times [2023-02-15 19:40:52,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:40:52,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611692649] [2023-02-15 19:40:52,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:52,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:40:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:52,410 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 19:40:52,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:40:52,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611692649] [2023-02-15 19:40:52,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611692649] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 19:40:52,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261845138] [2023-02-15 19:40:52,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:52,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:40:52,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:40:52,412 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 19:40:52,414 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 19:40:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:52,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 42 conjunts are in the unsatisfiable core [2023-02-15 19:40:52,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:40:52,500 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 6 treesize of output 5 [2023-02-15 19:40:52,533 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-15 19:40:52,534 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 19:40:52,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-15 19:40:52,557 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 11 treesize of output 7 [2023-02-15 19:40:52,583 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-15 19:40:52,584 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 52 treesize of output 49 [2023-02-15 19:40:52,587 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 34 treesize of output 36 [2023-02-15 19:40:52,590 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 23 treesize of output 15 [2023-02-15 19:40:52,619 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 31 treesize of output 19 [2023-02-15 19:40:52,621 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 19 treesize of output 11 [2023-02-15 19:40:52,627 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 15 treesize of output 7 [2023-02-15 19:40:52,629 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 19:40:52,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:40:52,668 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 79 treesize of output 57 [2023-02-15 19:40:52,673 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (forall ((v_ArrVal_358 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_358) |c_ULTIMATE.start_main_~a~0#1.base|) .cse0) |c_ULTIMATE.start_main_~p~0#1.base|)) (forall ((v_ArrVal_357 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_357) |c_ULTIMATE.start_main_~a~0#1.base|) .cse0) |c_ULTIMATE.start_main_~p~0#1.offset|)))) is different from false [2023-02-15 19:40:52,686 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:52,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23 [2023-02-15 19:40:52,691 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:52,691 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 35 [2023-02-15 19:40:52,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-02-15 19:40:52,703 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-02-15 19:40:52,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 1 [2023-02-15 19:40:52,789 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2023-02-15 19:40:52,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261845138] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:40:52,790 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 19:40:52,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 16 [2023-02-15 19:40:52,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726125063] [2023-02-15 19:40:52,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 19:40:52,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-15 19:40:52,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:40:52,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-15 19:40:52,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=175, Unknown=1, NotChecked=26, Total=240 [2023-02-15 19:40:52,791 INFO L87 Difference]: Start difference. First operand 89 states and 127 transitions. Second operand has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 0 states have call successors, (0), 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 19:40:53,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:40:53,180 INFO L93 Difference]: Finished difference Result 121 states and 164 transitions. [2023-02-15 19:40:53,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-15 19:40:53,181 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 0 states have call successors, (0), 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 33 [2023-02-15 19:40:53,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:40:53,181 INFO L225 Difference]: With dead ends: 121 [2023-02-15 19:40:53,181 INFO L226 Difference]: Without dead ends: 117 [2023-02-15 19:40:53,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 56 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=364, Unknown=1, NotChecked=40, Total=506 [2023-02-15 19:40:53,186 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 216 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 78 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 19:40:53,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 387 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 320 Invalid, 0 Unknown, 78 Unchecked, 0.2s Time] [2023-02-15 19:40:53,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-02-15 19:40:53,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 107. [2023-02-15 19:40:53,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 106 states have (on average 1.4056603773584906) internal successors, (149), 106 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:40:53,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 149 transitions. [2023-02-15 19:40:53,195 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 149 transitions. Word has length 33 [2023-02-15 19:40:53,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:40:53,197 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 149 transitions. [2023-02-15 19:40:53,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 0 states have call successors, (0), 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 19:40:53,197 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 149 transitions. [2023-02-15 19:40:53,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-02-15 19:40:53,197 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:40:53,197 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:40:53,216 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 19:40:53,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:40:53,398 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:40:53,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:40:53,399 INFO L85 PathProgramCache]: Analyzing trace with hash 2145137748, now seen corresponding path program 2 times [2023-02-15 19:40:53,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:40:53,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716048121] [2023-02-15 19:40:53,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:53,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:40:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:53,724 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:40:53,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:40:53,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716048121] [2023-02-15 19:40:53,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716048121] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 19:40:53,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401090355] [2023-02-15 19:40:53,725 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 19:40:53,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:40:53,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:40:53,741 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 19:40:53,746 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 19:40:53,862 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 19:40:53,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 19:40:53,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 37 conjunts are in the unsatisfiable core [2023-02-15 19:40:53,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:40:53,870 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 6 treesize of output 5 [2023-02-15 19:40:53,911 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-15 19:40:53,912 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 19:40:53,942 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 13 treesize of output 9 [2023-02-15 19:40:53,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-02-15 19:40:53,982 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-15 19:40:53,983 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 64 treesize of output 61 [2023-02-15 19:40:53,986 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 42 treesize of output 44 [2023-02-15 19:40:53,988 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 29 treesize of output 19 [2023-02-15 19:40:54,018 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 39 treesize of output 21 [2023-02-15 19:40:54,021 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 23 treesize of output 11 [2023-02-15 19:40:54,031 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 15 treesize of output 7 [2023-02-15 19:40:54,034 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 19:40:54,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:40:54,088 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 52 treesize of output 30 [2023-02-15 19:40:54,094 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (forall ((v_ArrVal_435 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_435) |c_ULTIMATE.start_main_~a~0#1.base|) .cse0) |c_ULTIMATE.start_main_~p~0#1.base|)) (forall ((v_ArrVal_437 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_437) |c_ULTIMATE.start_main_~a~0#1.base|) .cse0) |c_ULTIMATE.start_main_~p~0#1.offset|)))) is different from false [2023-02-15 19:40:54,110 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:54,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23 [2023-02-15 19:40:54,116 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:54,117 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 38 treesize of output 31 [2023-02-15 19:40:54,119 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 11 treesize of output 7 [2023-02-15 19:40:54,130 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-02-15 19:40:54,130 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 1 [2023-02-15 19:40:54,208 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2023-02-15 19:40:54,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401090355] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:40:54,208 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 19:40:54,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 21 [2023-02-15 19:40:54,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438860111] [2023-02-15 19:40:54,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 19:40:54,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-02-15 19:40:54,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:40:54,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-02-15 19:40:54,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=326, Unknown=1, NotChecked=36, Total=420 [2023-02-15 19:40:54,210 INFO L87 Difference]: Start difference. First operand 107 states and 149 transitions. Second operand has 21 states, 21 states have (on average 3.4761904761904763) internal successors, (73), 21 states have internal predecessors, (73), 0 states have call successors, (0), 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 19:40:54,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:40:54,578 INFO L93 Difference]: Finished difference Result 123 states and 166 transitions. [2023-02-15 19:40:54,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-15 19:40:54,579 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.4761904761904763) internal successors, (73), 21 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2023-02-15 19:40:54,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:40:54,579 INFO L225 Difference]: With dead ends: 123 [2023-02-15 19:40:54,580 INFO L226 Difference]: Without dead ends: 113 [2023-02-15 19:40:54,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 58 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=176, Invalid=697, Unknown=1, NotChecked=56, Total=930 [2023-02-15 19:40:54,580 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 196 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 73 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 19:40:54,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 468 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 286 Invalid, 0 Unknown, 73 Unchecked, 0.2s Time] [2023-02-15 19:40:54,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-02-15 19:40:54,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 102. [2023-02-15 19:40:54,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 1.4158415841584158) internal successors, (143), 101 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:40:54,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 143 transitions. [2023-02-15 19:40:54,584 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 143 transitions. Word has length 35 [2023-02-15 19:40:54,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:40:54,585 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 143 transitions. [2023-02-15 19:40:54,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.4761904761904763) internal successors, (73), 21 states have internal predecessors, (73), 0 states have call successors, (0), 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 19:40:54,585 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 143 transitions. [2023-02-15 19:40:54,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-02-15 19:40:54,585 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:40:54,585 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:40:54,592 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 19:40:54,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:40:54,791 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:40:54,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:40:54,791 INFO L85 PathProgramCache]: Analyzing trace with hash 66922580, now seen corresponding path program 1 times [2023-02-15 19:40:54,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:40:54,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724285497] [2023-02-15 19:40:54,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:54,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:40:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:54,949 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-15 19:40:54,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:40:54,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724285497] [2023-02-15 19:40:54,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724285497] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 19:40:54,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085510960] [2023-02-15 19:40:54,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:54,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:40:54,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:40:54,951 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 19:40:54,993 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 19:40:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:55,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 41 conjunts are in the unsatisfiable core [2023-02-15 19:40:55,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:40:55,078 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 6 treesize of output 5 [2023-02-15 19:40:55,122 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-15 19:40:55,122 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 19:40:55,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-02-15 19:40:55,149 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 13 treesize of output 9 [2023-02-15 19:40:55,181 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-15 19:40:55,181 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 64 treesize of output 61 [2023-02-15 19:40:55,185 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 42 treesize of output 44 [2023-02-15 19:40:55,187 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 29 treesize of output 19 [2023-02-15 19:40:55,208 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 31 treesize of output 19 [2023-02-15 19:40:55,210 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 19 treesize of output 11 [2023-02-15 19:40:55,222 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 15 treesize of output 7 [2023-02-15 19:40:55,231 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 19:40:55,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:40:55,266 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 52 treesize of output 30 [2023-02-15 19:40:55,270 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (forall ((v_ArrVal_514 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_514) |c_ULTIMATE.start_main_~a~0#1.base|) .cse0) |c_ULTIMATE.start_main_~p~0#1.base|)) (forall ((v_ArrVal_516 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_516) |c_ULTIMATE.start_main_~a~0#1.base|) .cse0) |c_ULTIMATE.start_main_~p~0#1.offset|)))) is different from false [2023-02-15 19:40:55,282 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:55,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23 [2023-02-15 19:40:55,286 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:55,287 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 35 [2023-02-15 19:40:55,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-02-15 19:40:55,298 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-02-15 19:40:55,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 1 [2023-02-15 19:40:55,373 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2023-02-15 19:40:55,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085510960] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:40:55,373 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 19:40:55,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 22 [2023-02-15 19:40:55,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984065344] [2023-02-15 19:40:55,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 19:40:55,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-02-15 19:40:55,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:40:55,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-02-15 19:40:55,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=361, Unknown=1, NotChecked=38, Total=462 [2023-02-15 19:40:55,375 INFO L87 Difference]: Start difference. First operand 102 states and 143 transitions. Second operand has 22 states, 22 states have (on average 3.0) internal successors, (66), 22 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:40:55,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:40:55,695 INFO L93 Difference]: Finished difference Result 126 states and 169 transitions. [2023-02-15 19:40:55,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-15 19:40:55,695 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.0) internal successors, (66), 22 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2023-02-15 19:40:55,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:40:55,696 INFO L225 Difference]: With dead ends: 126 [2023-02-15 19:40:55,696 INFO L226 Difference]: Without dead ends: 108 [2023-02-15 19:40:55,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=638, Unknown=1, NotChecked=52, Total=812 [2023-02-15 19:40:55,697 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 28 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 46 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 19:40:55,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 695 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 299 Invalid, 2 Unknown, 46 Unchecked, 0.2s Time] [2023-02-15 19:40:55,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-02-15 19:40:55,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 99. [2023-02-15 19:40:55,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.4081632653061225) internal successors, (138), 98 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:40:55,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 138 transitions. [2023-02-15 19:40:55,701 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 138 transitions. Word has length 35 [2023-02-15 19:40:55,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:40:55,701 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 138 transitions. [2023-02-15 19:40:55,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.0) internal successors, (66), 22 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:40:55,701 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 138 transitions. [2023-02-15 19:40:55,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-02-15 19:40:55,701 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:40:55,701 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:40:55,721 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 19:40:55,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-02-15 19:40:55,907 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:40:55,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:40:55,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1701842976, now seen corresponding path program 3 times [2023-02-15 19:40:55,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:40:55,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356822970] [2023-02-15 19:40:55,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:55,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:40:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:56,450 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:40:56,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:40:56,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356822970] [2023-02-15 19:40:56,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356822970] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 19:40:56,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994846858] [2023-02-15 19:40:56,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 19:40:56,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:40:56,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:40:56,458 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 19:40:56,460 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 19:40:56,591 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-02-15 19:40:56,591 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 19:40:56,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 70 conjunts are in the unsatisfiable core [2023-02-15 19:40:56,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:40:56,600 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 6 treesize of output 5 [2023-02-15 19:40:56,654 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-02-15 19:40:56,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-02-15 19:40:56,698 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 13 treesize of output 9 [2023-02-15 19:40:56,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-02-15 19:40:56,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-15 19:40:56,756 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-15 19:40:56,756 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 1 case distinctions, treesize of input 37 treesize of output 35 [2023-02-15 19:40:56,771 INFO L321 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2023-02-15 19:40:56,771 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 24 [2023-02-15 19:40:56,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:40:56,781 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 25 treesize of output 25 [2023-02-15 19:40:56,844 INFO L321 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2023-02-15 19:40:56,844 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 175 treesize of output 117 [2023-02-15 19:40:56,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:40:56,851 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 51 treesize of output 44 [2023-02-15 19:40:56,868 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 0 case distinctions, treesize of input 152 treesize of output 112 [2023-02-15 19:40:56,959 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-02-15 19:40:56,959 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 214 treesize of output 175 [2023-02-15 19:40:56,975 INFO L321 Elim1Store]: treesize reduction 46, result has 27.0 percent of original size [2023-02-15 19:40:56,976 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 2 case distinctions, treesize of input 189 treesize of output 173 [2023-02-15 19:40:56,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 66 [2023-02-15 19:40:57,061 INFO L321 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2023-02-15 19:40:57,061 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 62 [2023-02-15 19:40:57,065 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 29 [2023-02-15 19:40:57,119 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 19:40:57,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:40:57,423 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:57,423 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 151 treesize of output 149 [2023-02-15 19:40:57,428 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 4799 treesize of output 4471 [2023-02-15 19:40:57,457 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:57,458 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 3801 treesize of output 3419 [2023-02-15 19:41:04,777 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 49 treesize of output 37 [2023-02-15 19:41:04,824 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 8 treesize of output 4 [2023-02-15 19:41:05,266 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2023-02-15 19:41:05,273 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2023-02-15 19:41:05,283 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,283 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 86 treesize of output 85 [2023-02-15 19:41:05,295 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,295 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 196 treesize of output 189 [2023-02-15 19:41:05,301 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 174 treesize of output 158 [2023-02-15 19:41:05,309 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,309 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 237 treesize of output 161 [2023-02-15 19:41:05,318 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 54 treesize of output 46 [2023-02-15 19:41:05,326 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,327 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 33 treesize of output 33 [2023-02-15 19:41:05,506 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 53 [2023-02-15 19:41:05,508 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:41:05,514 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,514 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 69 treesize of output 62 [2023-02-15 19:41:05,521 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,521 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 49 treesize of output 37 [2023-02-15 19:41:05,548 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2023-02-15 19:41:05,553 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2023-02-15 19:41:05,556 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:41:05,562 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,563 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 35 [2023-02-15 19:41:05,565 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:41:05,571 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,571 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 35 [2023-02-15 19:41:05,584 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,584 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 22 treesize of output 22 [2023-02-15 19:41:05,596 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,597 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 20 treesize of output 20 [2023-02-15 19:41:05,612 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 33 [2023-02-15 19:41:05,618 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 54 [2023-02-15 19:41:05,621 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:41:05,628 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,629 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 43 treesize of output 42 [2023-02-15 19:41:05,631 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:41:05,637 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,637 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 72 treesize of output 65 [2023-02-15 19:41:05,644 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,644 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 60 treesize of output 48 [2023-02-15 19:41:05,706 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,706 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 35 treesize of output 35 [2023-02-15 19:41:05,731 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 51 [2023-02-15 19:41:05,737 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2023-02-15 19:41:05,743 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:41:05,751 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,751 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 65 treesize of output 58 [2023-02-15 19:41:05,754 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:41:05,759 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,760 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 44 treesize of output 43 [2023-02-15 19:41:05,766 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,767 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 38 treesize of output 30 [2023-02-15 19:41:05,795 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,795 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 33 treesize of output 29 [2023-02-15 19:41:05,817 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 52 [2023-02-15 19:41:05,823 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2023-02-15 19:41:05,826 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:41:05,834 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,834 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 68 treesize of output 61 [2023-02-15 19:41:05,837 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:41:05,844 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,844 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 39 treesize of output 38 [2023-02-15 19:41:05,850 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,851 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 33 treesize of output 33 [2023-02-15 19:41:05,872 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,872 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 46 treesize of output 42 [2023-02-15 19:41:05,899 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 41 [2023-02-15 19:41:05,901 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:41:05,907 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,907 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 61 treesize of output 54 [2023-02-15 19:41:05,923 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:05,924 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 31 treesize of output 27 [2023-02-15 19:41:06,371 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 19:41:06,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994846858] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:41:06,372 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 19:41:06,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 13] total 33 [2023-02-15 19:41:06,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868681795] [2023-02-15 19:41:06,373 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 19:41:06,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-02-15 19:41:06,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:41:06,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-02-15 19:41:06,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=922, Unknown=16, NotChecked=0, Total=1056 [2023-02-15 19:41:06,375 INFO L87 Difference]: Start difference. First operand 99 states and 138 transitions. Second operand has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 33 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:41:06,818 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse8 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse7 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (let ((.cse3 (select .cse8 .cse7)) (.cse1 (select |c_#valid| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse0 (select .cse2 .cse7))) (and (not (= |c_ULTIMATE.start_main_~p~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= (select |c_#valid| .cse0) 1) (= .cse1 1) (= (select .cse2 4) |c_ULTIMATE.start_main_~p~0#1.base|) (= .cse3 0) (= |c_ULTIMATE.start_main_~p~0#1.offset| .cse3) (not (= .cse0 |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((v_ArrVal_634 (Array Int Int)) (v_ArrVal_630 Int) (v_ArrVal_632 (Array Int Int))) (let ((.cse4 (let ((.cse6 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4))) (select (select (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|) .cse6 v_ArrVal_630)))) (store .cse5 |c_ULTIMATE.start_main_~t~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~t~0#1.base|) |c_ULTIMATE.start_main_~t~0#1.offset| 3))) (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base|) .cse6 |c_ULTIMATE.start_main_~t~0#1.base|)) |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_632) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7)) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~p~0#1.base|) .cse6 |c_ULTIMATE.start_main_~t~0#1.offset|)) |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_634) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7))))) (or (= 3 .cse4) (= 2 .cse4)))) (= 1 .cse1) (= 1 (select |c_#valid| |c_ULTIMATE.start_main_~p~0#1.base|)) (= 0 |c_ULTIMATE.start_main_~a~0#1.offset|) (= (select .cse8 4) |c_ULTIMATE.start_main_~p~0#1.offset|) (= |c_ULTIMATE.start_main_~root~0#1.offset| 0) (= |c_ULTIMATE.start_main_~p~0#1.base| .cse0)))) is different from false [2023-02-15 19:41:09,801 WARN L539 Checker$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 19:41:11,820 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 19:41:14,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:41:14,119 INFO L93 Difference]: Finished difference Result 139 states and 186 transitions. [2023-02-15 19:41:14,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-02-15 19:41:14,120 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 33 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2023-02-15 19:41:14,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:41:14,120 INFO L225 Difference]: With dead ends: 139 [2023-02-15 19:41:14,120 INFO L226 Difference]: Without dead ends: 133 [2023-02-15 19:41:14,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=341, Invalid=2183, Unknown=30, NotChecked=98, Total=2652 [2023-02-15 19:41:14,122 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 122 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 40 mSolverCounterUnsat, 23 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 23 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-02-15 19:41:14,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 637 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 676 Invalid, 23 Unknown, 2 Unchecked, 5.4s Time] [2023-02-15 19:41:14,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-02-15 19:41:14,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 117. [2023-02-15 19:41:14,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 116 states have (on average 1.3793103448275863) internal successors, (160), 116 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:41:14,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 160 transitions. [2023-02-15 19:41:14,128 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 160 transitions. Word has length 37 [2023-02-15 19:41:14,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:41:14,129 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 160 transitions. [2023-02-15 19:41:14,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 33 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:41:14,129 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 160 transitions. [2023-02-15 19:41:14,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-02-15 19:41:14,130 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:41:14,130 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:41:14,139 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 19:41:14,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:41:14,335 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:41:14,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:41:14,336 INFO L85 PathProgramCache]: Analyzing trace with hash -426372960, now seen corresponding path program 1 times [2023-02-15 19:41:14,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:41:14,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24828512] [2023-02-15 19:41:14,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:41:14,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:41:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:41:14,951 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 19:41:14,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:41:14,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24828512] [2023-02-15 19:41:14,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24828512] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 19:41:14,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097564794] [2023-02-15 19:41:14,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:41:14,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:41:14,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:41:14,953 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 19:41:14,989 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 19:41:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:41:15,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 71 conjunts are in the unsatisfiable core [2023-02-15 19:41:15,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:41:15,066 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 6 treesize of output 5 [2023-02-15 19:41:15,096 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-02-15 19:41:15,096 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-02-15 19:41:15,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-15 19:41:15,158 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 11 treesize of output 7 [2023-02-15 19:41:15,235 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-15 19:41:15,236 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 1 case distinctions, treesize of input 31 treesize of output 29 [2023-02-15 19:41:15,249 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2023-02-15 19:41:15,250 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 20 treesize of output 22 [2023-02-15 19:41:15,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:41:15,259 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 14 treesize of output 16 [2023-02-15 19:41:15,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-15 19:41:15,339 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2023-02-15 19:41:15,340 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 141 treesize of output 103 [2023-02-15 19:41:15,345 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 41 treesize of output 36 [2023-02-15 19:41:15,349 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 0 case distinctions, treesize of input 115 treesize of output 93 [2023-02-15 19:41:15,442 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-02-15 19:41:15,443 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 174 treesize of output 145 [2023-02-15 19:41:15,459 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2023-02-15 19:41:15,459 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 2 case distinctions, treesize of input 146 treesize of output 134 [2023-02-15 19:41:15,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 54 [2023-02-15 19:41:15,564 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2023-02-15 19:41:15,565 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 123 treesize of output 60 [2023-02-15 19:41:15,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 26 [2023-02-15 19:41:15,675 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-15 19:41:15,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 17 [2023-02-15 19:41:15,679 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 19:41:15,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:41:15,849 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:15,850 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 75 treesize of output 79 [2023-02-15 19:41:15,862 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:15,862 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 1282 treesize of output 1240 [2023-02-15 19:41:15,876 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:15,876 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 689 treesize of output 627 [2023-02-15 19:41:16,333 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 8 treesize of output 4 [2023-02-15 19:41:16,367 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 8 treesize of output 4 [2023-02-15 19:41:16,393 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 8 treesize of output 4 [2023-02-15 19:41:16,519 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 30 treesize of output 22 [2023-02-15 19:41:16,555 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 37 treesize of output 25 [2023-02-15 19:41:16,596 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 37 treesize of output 25 [2023-02-15 19:41:16,619 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 30 treesize of output 22 [2023-02-15 19:41:18,486 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:18,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 428 treesize of output 389 [2023-02-15 19:41:18,504 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:18,505 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 1403 treesize of output 964 [2023-02-15 19:41:18,523 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:18,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 838 treesize of output 799 [2023-02-15 19:41:18,531 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 788 treesize of output 772 [2023-02-15 19:41:18,547 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:18,548 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 772 treesize of output 769 [2023-02-15 19:41:18,570 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:18,570 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 1173 treesize of output 1142 [2023-02-15 19:41:18,586 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 1126 treesize of output 1118 [2023-02-15 19:41:18,604 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:18,605 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 1118 treesize of output 1079 [2023-02-15 19:41:18,624 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:18,624 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 1070 treesize of output 1067 [2023-02-15 19:41:18,636 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 1058 treesize of output 1042 [2023-02-15 19:41:18,655 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:18,656 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 1042 treesize of output 959 [2023-02-15 19:41:18,667 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 950 treesize of output 942 [2023-02-15 19:41:18,679 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 942 treesize of output 934 [2023-02-15 19:41:18,718 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:18,718 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 934 treesize of output 935 [2023-02-15 19:41:18,738 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:18,738 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 926 treesize of output 911 [2023-02-15 19:41:18,751 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 902 treesize of output 886 [2023-02-15 19:41:18,771 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:18,772 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 886 treesize of output 887 [2023-02-15 19:41:18,785 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 878 treesize of output 870 [2023-02-15 19:41:18,798 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 870 treesize of output 854 [2023-02-15 19:41:18,819 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:18,820 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 854 treesize of output 851 [2023-02-15 19:41:18,843 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:18,844 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 842 treesize of output 799 [2023-02-15 19:41:18,866 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:18,866 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 790 treesize of output 771 [2023-02-15 19:41:18,881 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 762 treesize of output 754 [2023-02-15 19:41:44,472 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:44,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 28 [2023-02-15 19:41:44,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:41:44,475 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:41:44,477 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 18 treesize of output 12 [2023-02-15 19:41:44,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 21 treesize of output 13 [2023-02-15 19:41:44,497 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:44,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2023-02-15 19:41:44,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:41:44,500 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:41:44,502 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 16 [2023-02-15 19:41:44,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 16 treesize of output 10 [2023-02-15 19:41:44,511 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:44,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 28 [2023-02-15 19:41:44,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:41:44,514 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:41:44,515 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 18 treesize of output 12 [2023-02-15 19:41:44,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 16 treesize of output 10 [2023-02-15 19:41:44,524 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:44,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2023-02-15 19:41:44,531 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:44,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2023-02-15 19:41:44,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:41:44,534 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:41:44,536 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 15 [2023-02-15 19:41:44,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:41:44,538 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:41:44,540 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 15 [2023-02-15 19:41:44,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 19 treesize of output 11 [2023-02-15 19:41:44,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 15 treesize of output 9 [2023-02-15 19:41:44,552 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:44,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2023-02-15 19:41:44,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:41:44,555 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:41:44,557 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 16 [2023-02-15 19:41:44,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 16 treesize of output 10 [2023-02-15 19:41:44,570 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:44,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 247 treesize of output 238 [2023-02-15 19:41:44,584 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:44,585 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 724 treesize of output 507 [2023-02-15 19:41:44,595 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:44,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 479 treesize of output 450 [2023-02-15 19:41:44,601 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 439 treesize of output 423 [2023-02-15 19:41:44,612 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:44,613 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 423 treesize of output 420 [2023-02-15 19:41:44,619 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 411 treesize of output 395 [2023-02-15 19:41:44,635 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:44,636 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 900 treesize of output 863 [2023-02-15 19:41:44,660 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:44,660 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 603 treesize of output 564 [2023-02-15 19:41:44,668 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 555 treesize of output 547 [2023-02-15 19:41:44,682 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:44,682 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 547 treesize of output 544 [2023-02-15 19:41:44,691 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 535 treesize of output 519 [2023-02-15 19:41:44,705 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:44,706 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 519 treesize of output 432 [2023-02-15 19:41:44,720 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:44,721 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 423 treesize of output 416 [2023-02-15 19:41:48,306 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 19:41:48,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097564794] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:41:48,307 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 19:41:48,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 28 [2023-02-15 19:41:48,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929385711] [2023-02-15 19:41:48,307 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 19:41:48,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-02-15 19:41:48,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:41:48,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-02-15 19:41:48,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=648, Unknown=0, NotChecked=0, Total=756 [2023-02-15 19:41:48,309 INFO L87 Difference]: Start difference. First operand 117 states and 160 transitions. Second operand has 28 states, 28 states have (on average 2.75) internal successors, (77), 28 states have internal predecessors, (77), 0 states have call successors, (0), 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 19:41:50,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:41:50,277 INFO L93 Difference]: Finished difference Result 154 states and 204 transitions. [2023-02-15 19:41:50,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-15 19:41:50,278 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.75) internal successors, (77), 28 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2023-02-15 19:41:50,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:41:50,278 INFO L225 Difference]: With dead ends: 154 [2023-02-15 19:41:50,278 INFO L226 Difference]: Without dead ends: 150 [2023-02-15 19:41:50,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 55 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=396, Invalid=1955, Unknown=1, NotChecked=0, Total=2352 [2023-02-15 19:41:50,280 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 175 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 28 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-02-15 19:41:50,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 503 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 635 Invalid, 2 Unknown, 0 Unchecked, 1.2s Time] [2023-02-15 19:41:50,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-02-15 19:41:50,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 128. [2023-02-15 19:41:50,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 127 states have (on average 1.3700787401574803) internal successors, (174), 127 states have internal predecessors, (174), 0 states have call successors, (0), 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 19:41:50,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 174 transitions. [2023-02-15 19:41:50,287 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 174 transitions. Word has length 37 [2023-02-15 19:41:50,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:41:50,287 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 174 transitions. [2023-02-15 19:41:50,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.75) internal successors, (77), 28 states have internal predecessors, (77), 0 states have call successors, (0), 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 19:41:50,288 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 174 transitions. [2023-02-15 19:41:50,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-02-15 19:41:50,288 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:41:50,288 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:41:50,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-15 19:41:50,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:41:50,498 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:41:50,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:41:50,498 INFO L85 PathProgramCache]: Analyzing trace with hash 373938016, now seen corresponding path program 1 times [2023-02-15 19:41:50,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:41:50,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183647962] [2023-02-15 19:41:50,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:41:50,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:41:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:41:51,075 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:41:51,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:41:51,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183647962] [2023-02-15 19:41:51,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183647962] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 19:41:51,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830249829] [2023-02-15 19:41:51,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:41:51,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:41:51,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:41:51,077 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 19:41:51,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-15 19:41:51,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:41:51,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 69 conjunts are in the unsatisfiable core [2023-02-15 19:41:51,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:41:51,230 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 6 treesize of output 5 [2023-02-15 19:41:51,263 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-02-15 19:41:51,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-02-15 19:41:51,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-15 19:41:51,306 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 11 treesize of output 7 [2023-02-15 19:41:51,347 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-02-15 19:41:51,347 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 1 case distinctions, treesize of input 14 treesize of output 20 [2023-02-15 19:41:51,352 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 5 treesize of output 3 [2023-02-15 19:41:51,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-15 19:41:51,365 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-15 19:41:51,365 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 1 case distinctions, treesize of input 31 treesize of output 29 [2023-02-15 19:41:51,379 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2023-02-15 19:41:51,379 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 20 treesize of output 22 [2023-02-15 19:41:51,443 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2023-02-15 19:41:51,444 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 141 treesize of output 103 [2023-02-15 19:41:51,449 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 41 treesize of output 36 [2023-02-15 19:41:51,451 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 0 case distinctions, treesize of input 115 treesize of output 93 [2023-02-15 19:41:51,554 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-02-15 19:41:51,554 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 174 treesize of output 145 [2023-02-15 19:41:51,569 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2023-02-15 19:41:51,569 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 2 case distinctions, treesize of input 146 treesize of output 134 [2023-02-15 19:41:51,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 54 [2023-02-15 19:41:51,652 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2023-02-15 19:41:51,653 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 123 treesize of output 60 [2023-02-15 19:41:51,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 26 [2023-02-15 19:41:51,691 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-15 19:41:51,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 17 [2023-02-15 19:41:51,694 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 19:41:51,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:41:51,877 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:51,877 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 75 treesize of output 79 [2023-02-15 19:41:51,892 INFO L321 Elim1Store]: treesize reduction 4, result has 91.7 percent of original size [2023-02-15 19:41:51,892 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 790 treesize of output 785 [2023-02-15 19:41:51,903 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:51,904 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 537 treesize of output 490 [2023-02-15 19:41:52,212 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 8 treesize of output 4 [2023-02-15 19:41:52,582 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 63 treesize of output 47 [2023-02-15 19:41:52,747 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 81 treesize of output 61 [2023-02-15 19:44:13,272 WARN L233 SmtUtils]: Spent 2.34m on a formula simplification. DAG size of input: 154 DAG size of output: 116 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 19:44:14,101 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:14,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 58 [2023-02-15 19:44:14,107 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:44:14,141 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:14,142 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 1 case distinctions, treesize of input 118 treesize of output 81 [2023-02-15 19:44:14,195 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:14,195 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 44 treesize of output 36 [2023-02-15 19:44:14,329 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:14,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2023-02-15 19:44:14,348 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:14,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 47 [2023-02-15 19:44:14,395 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:14,395 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 171 treesize of output 128 [2023-02-15 19:44:14,406 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 74 treesize of output 66 [2023-02-15 19:44:14,448 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:14,448 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 75 treesize of output 75 [2023-02-15 19:44:14,517 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:14,517 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 107 treesize of output 106 [2023-02-15 19:44:14,556 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:14,556 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 163 treesize of output 115 [2023-02-15 19:44:14,566 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 54 treesize of output 46 [2023-02-15 19:44:15,135 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:15,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 49 [2023-02-15 19:44:15,182 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:15,182 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 288 treesize of output 197 [2023-02-15 19:44:15,202 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:15,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2023-02-15 19:44:15,230 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 139 treesize of output 123 [2023-02-15 19:44:15,243 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:44:15,288 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:15,288 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 35 [2023-02-15 19:44:15,328 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:15,329 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 144 treesize of output 112 [2023-02-15 19:44:15,366 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:15,366 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 57 treesize of output 53 [2023-02-15 19:44:15,595 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:15,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2023-02-15 19:44:15,615 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:15,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 36 [2023-02-15 19:44:15,675 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:15,675 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 245 treesize of output 190 [2023-02-15 19:44:15,687 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 142 treesize of output 126 [2023-02-15 19:44:15,729 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:15,730 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 134 treesize of output 130 [2023-02-15 19:44:15,743 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:44:15,789 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:15,790 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 36 treesize of output 35 [2023-02-15 19:44:15,849 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:15,852 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 139 treesize of output 115 [2023-02-15 19:44:15,987 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:15,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 49 [2023-02-15 19:44:15,998 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:44:16,031 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:16,031 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 1 case distinctions, treesize of input 61 treesize of output 54 [2023-02-15 19:44:16,097 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:16,097 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 40 treesize of output 32 [2023-02-15 19:44:16,141 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:16,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 50 [2023-02-15 19:44:16,193 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:16,193 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 304 treesize of output 207 [2023-02-15 19:44:16,231 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:16,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 35 [2023-02-15 19:44:16,278 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:16,278 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 119 treesize of output 115 [2023-02-15 19:44:16,292 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 136 treesize of output 120 [2023-02-15 19:44:16,307 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:44:16,358 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:16,358 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 47 treesize of output 46 [2023-02-15 19:44:16,400 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:16,400 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 160 treesize of output 120 [2023-02-15 19:44:16,854 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:16,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2023-02-15 19:44:16,901 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:16,901 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 178 treesize of output 135 [2023-02-15 19:44:16,922 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:16,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2023-02-15 19:44:16,936 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:44:16,984 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:16,984 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 1 case distinctions, treesize of input 36 treesize of output 35 [2023-02-15 19:44:17,026 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:17,026 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 98 treesize of output 78 [2023-02-15 19:44:17,066 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:17,067 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 37 treesize of output 37 [2023-02-15 19:44:17,080 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 50 treesize of output 42 [2023-02-15 19:44:17,282 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:17,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 44 [2023-02-15 19:44:17,295 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:44:17,331 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:17,331 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 84 treesize of output 65 [2023-02-15 19:44:17,374 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:17,374 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 46 treesize of output 42 [2023-02-15 19:44:17,763 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:17,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 51 [2023-02-15 19:44:17,815 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:17,816 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 556 treesize of output 357 [2023-02-15 19:44:17,842 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:17,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2023-02-15 19:44:17,888 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:17,888 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 307 treesize of output 295 [2023-02-15 19:44:17,904 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 283 treesize of output 251 [2023-02-15 19:44:17,920 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:44:17,974 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:17,974 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 35 [2023-02-15 19:44:18,020 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:18,020 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 272 treesize of output 224 [2023-02-15 19:44:18,480 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:18,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 51 [2023-02-15 19:44:18,532 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:18,532 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 333 treesize of output 212 [2023-02-15 19:44:18,556 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:18,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2023-02-15 19:44:18,568 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 147 treesize of output 131 [2023-02-15 19:44:18,614 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:18,614 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 77 treesize of output 73 [2023-02-15 19:44:18,629 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:44:18,680 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:18,681 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 1 case distinctions, treesize of input 36 treesize of output 35 [2023-02-15 19:44:18,747 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:18,747 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 151 treesize of output 115 [2023-02-15 19:44:18,952 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:18,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 58 [2023-02-15 19:44:18,965 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:44:19,003 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:19,003 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 118 treesize of output 81 [2023-02-15 19:44:19,047 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:19,047 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 44 treesize of output 36 [2023-02-15 19:44:19,143 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:19,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 33 [2023-02-15 19:44:19,163 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:19,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 36 [2023-02-15 19:44:19,223 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:19,223 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 331 treesize of output 222 [2023-02-15 19:44:19,234 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 166 treesize of output 150 [2023-02-15 19:44:19,278 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:19,279 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 159 treesize of output 155 [2023-02-15 19:44:19,293 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:44:19,340 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:19,341 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 1 case distinctions, treesize of input 36 treesize of output 35 [2023-02-15 19:44:19,380 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:19,381 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 171 treesize of output 143 [2023-02-15 19:44:19,620 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:19,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 49 [2023-02-15 19:44:19,632 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:44:19,665 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:19,666 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 61 treesize of output 54 [2023-02-15 19:44:19,721 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:19,722 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 33 treesize of output 29 [2023-02-15 19:44:19,766 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:19,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2023-02-15 19:44:19,786 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:19,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 47 [2023-02-15 19:44:19,848 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:19,848 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 278 treesize of output 211 [2023-02-15 19:44:19,860 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 150 treesize of output 134 [2023-02-15 19:44:19,904 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:19,905 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 143 treesize of output 139 [2023-02-15 19:44:19,920 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:44:19,969 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:19,970 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 1 case distinctions, treesize of input 47 treesize of output 46 [2023-02-15 19:44:20,012 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:20,013 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 174 treesize of output 138 [2023-02-15 19:44:20,352 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:20,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2023-02-15 19:44:20,372 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:20,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 72 [2023-02-15 19:44:20,434 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:20,434 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 290 treesize of output 223 [2023-02-15 19:44:20,447 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 150 treesize of output 134 [2023-02-15 19:44:20,490 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:20,490 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 143 treesize of output 139 [2023-02-15 19:44:20,505 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:44:20,553 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:20,554 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 72 treesize of output 65 [2023-02-15 19:44:20,595 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:20,595 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 178 treesize of output 142 [2023-02-15 19:44:20,980 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:20,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 33 [2023-02-15 19:44:21,002 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:21,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 36 [2023-02-15 19:44:21,066 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:21,066 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 192 treesize of output 131 [2023-02-15 19:44:21,111 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:21,111 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 91 treesize of output 91 [2023-02-15 19:44:21,124 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 78 treesize of output 70 [2023-02-15 19:44:21,139 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:44:21,190 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:21,190 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 35 [2023-02-15 19:44:21,249 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:21,249 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 92 treesize of output 76 [2023-02-15 19:44:27,334 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 19:44:27,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830249829] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:44:27,334 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 19:44:27,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 28 [2023-02-15 19:44:27,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095297554] [2023-02-15 19:44:27,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 19:44:27,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-02-15 19:44:27,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:44:27,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-02-15 19:44:27,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=660, Unknown=0, NotChecked=0, Total=756 [2023-02-15 19:44:27,336 INFO L87 Difference]: Start difference. First operand 128 states and 174 transitions. Second operand has 28 states, 28 states have (on average 2.6785714285714284) internal successors, (75), 28 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:44:35,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:44:35,273 INFO L93 Difference]: Finished difference Result 159 states and 209 transitions. [2023-02-15 19:44:35,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-02-15 19:44:35,274 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.6785714285714284) internal successors, (75), 28 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2023-02-15 19:44:35,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:44:35,275 INFO L225 Difference]: With dead ends: 159 [2023-02-15 19:44:35,275 INFO L226 Difference]: Without dead ends: 149 [2023-02-15 19:44:35,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 57 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 150.1s TimeCoverageRelationStatistics Valid=377, Invalid=2073, Unknown=0, NotChecked=0, Total=2450 [2023-02-15 19:44:35,276 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 202 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 41 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-02-15 19:44:35,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 630 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 698 Invalid, 3 Unknown, 0 Unchecked, 4.1s Time] [2023-02-15 19:44:35,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-02-15 19:44:35,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 135. [2023-02-15 19:44:35,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 134 states have (on average 1.3582089552238805) internal successors, (182), 134 states have internal predecessors, (182), 0 states have call successors, (0), 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 19:44:35,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 182 transitions. [2023-02-15 19:44:35,286 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 182 transitions. Word has length 37 [2023-02-15 19:44:35,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:44:35,286 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 182 transitions. [2023-02-15 19:44:35,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.6785714285714284) internal successors, (75), 28 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:44:35,289 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 182 transitions. [2023-02-15 19:44:35,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-15 19:44:35,289 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:44:35,289 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:44:35,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-15 19:44:35,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-02-15 19:44:35,490 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:44:35,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:44:35,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1673841285, now seen corresponding path program 1 times [2023-02-15 19:44:35,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:44:35,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488827817] [2023-02-15 19:44:35,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:44:35,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:44:35,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:44:37,297 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:44:37,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:44:37,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488827817] [2023-02-15 19:44:37,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488827817] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 19:44:37,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560399621] [2023-02-15 19:44:37,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:44:37,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:44:37,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:44:37,299 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 19:44:37,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-15 19:44:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:44:37,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 71 conjunts are in the unsatisfiable core [2023-02-15 19:44:37,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:44:37,439 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 6 treesize of output 5 [2023-02-15 19:44:37,640 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-02-15 19:44:37,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-02-15 19:44:37,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-15 19:44:37,889 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 11 treesize of output 7 [2023-02-15 19:44:38,296 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-02-15 19:44:38,297 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 1 case distinctions, treesize of input 14 treesize of output 20 [2023-02-15 19:44:38,315 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 5 treesize of output 3 [2023-02-15 19:44:38,385 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-15 19:44:38,385 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 1 case distinctions, treesize of input 31 treesize of output 29 [2023-02-15 19:44:38,479 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2023-02-15 19:44:38,479 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 20 treesize of output 22 [2023-02-15 19:44:38,842 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2023-02-15 19:44:38,843 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 101 treesize of output 75 [2023-02-15 19:44:38,852 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 0 case distinctions, treesize of input 100 treesize of output 82 [2023-02-15 19:44:39,288 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-02-15 19:44:39,288 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 159 treesize of output 132 [2023-02-15 19:44:39,374 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2023-02-15 19:44:39,375 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 2 case distinctions, treesize of input 131 treesize of output 121 [2023-02-15 19:44:39,407 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 53 treesize of output 35 [2023-02-15 19:44:40,243 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2023-02-15 19:44:40,243 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 117 treesize of output 58 [2023-02-15 19:44:40,254 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 19 [2023-02-15 19:44:40,520 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-15 19:44:40,521 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 22 treesize of output 14 [2023-02-15 19:44:40,529 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 19:44:40,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:44:41,171 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:41,171 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 202 treesize of output 205 [2023-02-15 19:44:43,901 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:43,902 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 109 treesize of output 103 [2023-02-15 19:44:43,920 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:43,921 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 122 treesize of output 116 [2023-02-15 19:44:44,918 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:44,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 82 [2023-02-15 19:44:44,936 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:44,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 62 [2023-02-15 19:44:45,300 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:45,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 2425 treesize of output 1774 [2023-02-15 19:44:45,338 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:44:45,392 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:45,393 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 1 case distinctions, treesize of input 2298 treesize of output 1931 [2023-02-15 19:44:45,462 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:45,463 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 1933 treesize of output 1477 [2023-02-15 19:44:45,683 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:45,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 1378 treesize of output 1316 [2023-02-15 19:44:46,044 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:46,044 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 1298 treesize of output 1336 [2023-02-15 19:45:10,508 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:45:10,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 82 [2023-02-15 19:45:10,527 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:45:10,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 62 [2023-02-15 19:45:10,890 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:45:10,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 2336 treesize of output 1679 [2023-02-15 19:45:10,982 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:45:10,983 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 10010 treesize of output 9367 [2023-02-15 19:45:11,098 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:45:11,099 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 9362 treesize of output 6590 [2023-02-15 19:45:11,145 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 6576 treesize of output 5712 [2023-02-15 19:45:11,539 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:45:11,539 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 5326 treesize of output 5352 [2023-02-15 19:45:11,877 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:45:11,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 5294 treesize of output 5242