./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/list-simple/dll2c_append_equal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 574ddb4e 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-simple/dll2c_append_equal.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 208d04089fa2c50848123d29dd18b6b2021c1b591464bd422fd10955aaeec7fc --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 14:31:43,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 14:31:43,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 14:31:43,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 14:31:43,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 14:31:43,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 14:31:43,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 14:31:43,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 14:31:43,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 14:31:43,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 14:31:43,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 14:31:43,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 14:31:43,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 14:31:43,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 14:31:43,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 14:31:43,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 14:31:43,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 14:31:43,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 14:31:43,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 14:31:43,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 14:31:43,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 14:31:43,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 14:31:43,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 14:31:43,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 14:31:43,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 14:31:43,869 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 14:31:43,869 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 14:31:43,870 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 14:31:43,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 14:31:43,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 14:31:43,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 14:31:43,872 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 14:31:43,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 14:31:43,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 14:31:43,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 14:31:43,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 14:31:43,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 14:31:43,874 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 14:31:43,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 14:31:43,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 14:31:43,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 14:31:43,876 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-18 14:31:43,892 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 14:31:43,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 14:31:43,893 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 14:31:43,893 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 14:31:43,893 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 14:31:43,893 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 14:31:43,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 14:31:43,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 14:31:43,894 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 14:31:43,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 14:31:43,894 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 14:31:43,894 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 14:31:43,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 14:31:43,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 14:31:43,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 14:31:43,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 14:31:43,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 14:31:43,895 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 14:31:43,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 14:31:43,895 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 14:31:43,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 14:31:43,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 14:31:43,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 14:31:43,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 14:31:43,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 14:31:43,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 14:31:43,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 14:31:43,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 14:31:43,897 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 14:31:43,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 14:31:43,897 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 14:31:43,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 14:31:43,897 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 14:31:43,897 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 14:31:43,897 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 14:31:43,898 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 208d04089fa2c50848123d29dd18b6b2021c1b591464bd422fd10955aaeec7fc [2023-02-18 14:31:44,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 14:31:44,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 14:31:44,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 14:31:44,073 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 14:31:44,073 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 14:31:44,074 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/dll2c_append_equal.i [2023-02-18 14:31:45,093 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 14:31:45,275 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 14:31:45,275 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2c_append_equal.i [2023-02-18 14:31:45,288 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcead94a3/242be2930b3b41a392902a9c9b7ab37a/FLAG6c3228cd9 [2023-02-18 14:31:45,298 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcead94a3/242be2930b3b41a392902a9c9b7ab37a [2023-02-18 14:31:45,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 14:31:45,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 14:31:45,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 14:31:45,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 14:31:45,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 14:31:45,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 02:31:45" (1/1) ... [2023-02-18 14:31:45,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19eb70c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:31:45, skipping insertion in model container [2023-02-18 14:31:45,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 02:31:45" (1/1) ... [2023-02-18 14:31:45,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 14:31:45,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 14:31:45,503 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-simple/dll2c_append_equal.i[24585,24598] [2023-02-18 14:31:45,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 14:31:45,511 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 14:31:45,542 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-simple/dll2c_append_equal.i[24585,24598] [2023-02-18 14:31:45,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 14:31:45,559 INFO L208 MainTranslator]: Completed translation [2023-02-18 14:31:45,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:31:45 WrapperNode [2023-02-18 14:31:45,560 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 14:31:45,561 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 14:31:45,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 14:31:45,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 14:31:45,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:31:45" (1/1) ... [2023-02-18 14:31:45,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:31:45" (1/1) ... [2023-02-18 14:31:45,586 INFO L138 Inliner]: procedures = 127, calls = 47, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 134 [2023-02-18 14:31:45,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 14:31:45,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 14:31:45,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 14:31:45,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 14:31:45,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:31:45" (1/1) ... [2023-02-18 14:31:45,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:31:45" (1/1) ... [2023-02-18 14:31:45,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:31:45" (1/1) ... [2023-02-18 14:31:45,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:31:45" (1/1) ... [2023-02-18 14:31:45,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:31:45" (1/1) ... [2023-02-18 14:31:45,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:31:45" (1/1) ... [2023-02-18 14:31:45,603 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:31:45" (1/1) ... [2023-02-18 14:31:45,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:31:45" (1/1) ... [2023-02-18 14:31:45,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 14:31:45,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 14:31:45,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 14:31:45,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 14:31:45,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:31:45" (1/1) ... [2023-02-18 14:31:45,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 14:31:45,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 14:31:45,646 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) [2023-02-18 14:31:45,663 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 [2023-02-18 14:31:45,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-18 14:31:45,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-18 14:31:45,683 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2023-02-18 14:31:45,683 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2023-02-18 14:31:45,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-18 14:31:45,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 14:31:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-18 14:31:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-18 14:31:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-02-18 14:31:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-18 14:31:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-02-18 14:31:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 14:31:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 14:31:45,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 14:31:45,759 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 14:31:45,760 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 14:31:45,952 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 14:31:45,956 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 14:31:45,957 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-02-18 14:31:45,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 02:31:45 BoogieIcfgContainer [2023-02-18 14:31:45,958 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 14:31:45,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 14:31:45,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 14:31:45,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 14:31:45,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 02:31:45" (1/3) ... [2023-02-18 14:31:45,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bef3deb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 02:31:45, skipping insertion in model container [2023-02-18 14:31:45,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:31:45" (2/3) ... [2023-02-18 14:31:45,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bef3deb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 02:31:45, skipping insertion in model container [2023-02-18 14:31:45,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 02:31:45" (3/3) ... [2023-02-18 14:31:45,963 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2c_append_equal.i [2023-02-18 14:31:45,974 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 14:31:45,978 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-18 14:31:46,025 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 14:31:46,030 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;@6cecc32f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 14:31:46,030 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-18 14:31:46,033 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 30 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-18 14:31:46,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-18 14:31:46,040 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 14:31:46,041 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] [2023-02-18 14:31:46,042 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 14:31:46,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 14:31:46,045 INFO L85 PathProgramCache]: Analyzing trace with hash 976010426, now seen corresponding path program 1 times [2023-02-18 14:31:46,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 14:31:46,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60072053] [2023-02-18 14:31:46,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 14:31:46,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 14:31:46,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 14:31:46,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 14:31:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 14:31:46,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-02-18 14:31:46,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 14:31:46,237 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-18 14:31:46,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 14:31:46,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60072053] [2023-02-18 14:31:46,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60072053] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 14:31:46,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 14:31:46,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 14:31:46,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590939008] [2023-02-18 14:31:46,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 14:31:46,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 14:31:46,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 14:31:46,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 14:31:46,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 14:31:46,261 INFO L87 Difference]: Start difference. First operand has 35 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 30 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 14:31:46,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 14:31:46,319 INFO L93 Difference]: Finished difference Result 61 states and 82 transitions. [2023-02-18 14:31:46,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 14:31:46,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2023-02-18 14:31:46,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 14:31:46,325 INFO L225 Difference]: With dead ends: 61 [2023-02-18 14:31:46,325 INFO L226 Difference]: Without dead ends: 27 [2023-02-18 14:31:46,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 14:31:46,329 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 14:31:46,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 14:31:46,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-18 14:31:46,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-02-18 14:31:46,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-18 14:31:46,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2023-02-18 14:31:46,352 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 24 [2023-02-18 14:31:46,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 14:31:46,353 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions. [2023-02-18 14:31:46,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 14:31:46,353 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2023-02-18 14:31:46,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-18 14:31:46,354 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 14:31:46,354 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] [2023-02-18 14:31:46,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 14:31:46,355 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 14:31:46,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 14:31:46,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1442307826, now seen corresponding path program 1 times [2023-02-18 14:31:46,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 14:31:46,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130334359] [2023-02-18 14:31:46,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 14:31:46,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 14:31:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 14:31:46,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 14:31:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 14:31:46,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-02-18 14:31:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 14:31:46,537 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-18 14:31:46,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 14:31:46,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130334359] [2023-02-18 14:31:46,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130334359] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 14:31:46,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 14:31:46,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 14:31:46,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887494228] [2023-02-18 14:31:46,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 14:31:46,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 14:31:46,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 14:31:46,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 14:31:46,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 14:31:46,544 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 14:31:46,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 14:31:46,594 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2023-02-18 14:31:46,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 14:31:46,597 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2023-02-18 14:31:46,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 14:31:46,598 INFO L225 Difference]: With dead ends: 50 [2023-02-18 14:31:46,598 INFO L226 Difference]: Without dead ends: 32 [2023-02-18 14:31:46,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 14:31:46,601 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 4 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 14:31:46,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 71 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 14:31:46,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-18 14:31:46,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28. [2023-02-18 14:31:46,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-18 14:31:46,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2023-02-18 14:31:46,608 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 24 [2023-02-18 14:31:46,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 14:31:46,609 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2023-02-18 14:31:46,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 14:31:46,609 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2023-02-18 14:31:46,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-02-18 14:31:46,611 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 14:31:46,611 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 14:31:46,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 14:31:46,612 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 14:31:46,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 14:31:46,612 INFO L85 PathProgramCache]: Analyzing trace with hash 915772386, now seen corresponding path program 1 times [2023-02-18 14:31:46,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 14:31:46,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128552962] [2023-02-18 14:31:46,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 14:31:46,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 14:31:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 14:31:46,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 14:31:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 14:31:46,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-18 14:31:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 14:31:46,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-02-18 14:31:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 14:31:47,037 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-18 14:31:47,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 14:31:47,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128552962] [2023-02-18 14:31:47,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128552962] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 14:31:47,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696323405] [2023-02-18 14:31:47,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 14:31:47,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 14:31:47,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 14:31:47,059 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) [2023-02-18 14:31:47,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 14:31:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 14:31:47,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 38 conjunts are in the unsatisfiable core [2023-02-18 14:31:47,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 14:31:47,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-02-18 14:31:47,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:47,467 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 28 treesize of output 28 [2023-02-18 14:31:47,487 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 29 treesize of output 17 [2023-02-18 14:31:47,521 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-18 14:31:47,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 14:31:47,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696323405] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 14:31:47,591 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 14:31:47,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 25 [2023-02-18 14:31:47,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019413109] [2023-02-18 14:31:47,592 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 14:31:47,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-02-18 14:31:47,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 14:31:47,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-02-18 14:31:47,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=617, Unknown=2, NotChecked=0, Total=702 [2023-02-18 14:31:47,594 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 25 states, 23 states have (on average 1.9130434782608696) internal successors, (44), 19 states have internal predecessors, (44), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2023-02-18 14:31:48,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 14:31:48,003 INFO L93 Difference]: Finished difference Result 55 states and 68 transitions. [2023-02-18 14:31:48,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-18 14:31:48,004 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 1.9130434782608696) internal successors, (44), 19 states have internal predecessors, (44), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 34 [2023-02-18 14:31:48,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 14:31:48,004 INFO L225 Difference]: With dead ends: 55 [2023-02-18 14:31:48,004 INFO L226 Difference]: Without dead ends: 32 [2023-02-18 14:31:48,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 5 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=181, Invalid=1007, Unknown=2, NotChecked=0, Total=1190 [2023-02-18 14:31:48,006 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 78 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 14:31:48,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 204 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 14:31:48,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-18 14:31:48,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2023-02-18 14:31:48,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 14:31:48,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2023-02-18 14:31:48,010 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 34 [2023-02-18 14:31:48,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 14:31:48,010 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2023-02-18 14:31:48,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 1.9130434782608696) internal successors, (44), 19 states have internal predecessors, (44), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2023-02-18 14:31:48,020 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2023-02-18 14:31:48,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-02-18 14:31:48,021 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 14:31:48,021 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 14:31:48,043 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-18 14:31:48,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 14:31:48,228 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 14:31:48,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 14:31:48,229 INFO L85 PathProgramCache]: Analyzing trace with hash 917619428, now seen corresponding path program 1 times [2023-02-18 14:31:48,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 14:31:48,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154869210] [2023-02-18 14:31:48,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 14:31:48,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 14:31:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 14:31:53,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 14:31:53,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 14:31:53,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-18 14:31:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 14:31:54,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-02-18 14:31:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 14:31:54,299 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-18 14:31:54,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 14:31:54,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154869210] [2023-02-18 14:31:54,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154869210] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 14:31:54,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166869686] [2023-02-18 14:31:54,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 14:31:54,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 14:31:54,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 14:31:54,313 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) [2023-02-18 14:31:54,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 14:31:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 14:31:55,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 289 conjunts are in the unsatisfiable core [2023-02-18 14:31:55,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 14:31:55,384 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 [2023-02-18 14:31:55,414 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 [2023-02-18 14:31:55,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:55,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-02-18 14:31:55,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:55,572 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 11 treesize of output 7 [2023-02-18 14:31:55,622 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 [2023-02-18 14:31:55,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:55,682 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 14:31:55,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 69 [2023-02-18 14:31:55,732 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 21 treesize of output 20 [2023-02-18 14:31:55,780 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 16 treesize of output 18 [2023-02-18 14:31:55,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:55,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 23 [2023-02-18 14:31:55,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 22 [2023-02-18 14:31:55,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:55,901 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 16 treesize of output 16 [2023-02-18 14:31:55,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2023-02-18 14:31:56,014 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 14:31:56,014 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 156 treesize of output 67 [2023-02-18 14:31:56,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 34 [2023-02-18 14:31:56,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2023-02-18 14:31:56,029 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 7 treesize of output 3 [2023-02-18 14:31:56,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,170 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 [2023-02-18 14:31:56,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,176 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 14:31:56,176 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 166 treesize of output 150 [2023-02-18 14:31:56,181 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 14:31:56,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 48 [2023-02-18 14:31:56,185 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 [2023-02-18 14:31:56,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,195 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 14:31:56,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 85 treesize of output 85 [2023-02-18 14:31:56,204 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:56,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,438 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 14:31:56,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 9 new quantified variables, introduced 8 case distinctions, treesize of input 991 treesize of output 617 [2023-02-18 14:31:56,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,448 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 14:31:56,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 491 treesize of output 499 [2023-02-18 14:31:56,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,465 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 14:31:56,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 532 treesize of output 1639 [2023-02-18 14:31:56,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 594 treesize of output 534 [2023-02-18 14:31:56,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,518 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 14:31:56,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 886 treesize of output 906 [2023-02-18 14:31:56,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 1161 treesize of output 1069 [2023-02-18 14:31:56,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,598 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 14:31:56,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 1093 treesize of output 1085 [2023-02-18 14:31:56,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,625 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 14:31:56,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 1310 treesize of output 1376 [2023-02-18 14:31:56,663 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 3 [2023-02-18 14:31:56,731 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:56,735 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:56,765 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:56,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 88 [2023-02-18 14:31:56,807 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:56,812 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:56,832 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:56,860 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:56,892 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:56,919 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:56,939 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:56,945 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:56,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:56,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 94 [2023-02-18 14:31:56,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:57,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 94 [2023-02-18 14:31:57,008 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:57,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:31:57,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 94 [2023-02-18 14:31:57,045 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:57,048 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:57,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 194 treesize of output 168 [2023-02-18 14:31:57,109 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:57,123 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:57,135 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:57,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 315 [2023-02-18 14:31:57,248 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-18 14:31:57,258 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:57,292 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-18 14:31:57,294 WARN L193 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:57,326 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-18 14:31:57,328 WARN L193 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:57,377 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 14:31:57,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 280 treesize of output 510 [2023-02-18 14:31:57,384 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:57,388 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:57,390 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:57,422 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:57,456 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:31:57,484 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:32:33,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 14:32:33,993 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 14:32:33,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 273 treesize of output 504 [2023-02-18 14:32:34,022 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:32:34,046 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 14:32:34,069 WARN L207 Elim1Store]: Array PQE input equivalent to false