./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-patterns/array6_pattern.c --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/array-patterns/array6_pattern.c -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 81db346fb66b40514998cf838e858b3f0793fe5c74d5812efa60193ab54d6833 --- Real Ultimate output --- This is Ultimate 0.2.2-?-e8d5503-m [2023-02-15 18:48:39,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 18:48:39,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 18:48:39,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 18:48:39,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 18:48:39,956 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 18:48:39,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 18:48:39,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 18:48:39,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 18:48:39,961 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 18:48:39,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 18:48:39,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 18:48:39,963 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 18:48:39,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 18:48:39,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 18:48:39,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 18:48:39,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 18:48:39,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 18:48:39,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 18:48:39,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 18:48:39,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 18:48:39,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 18:48:39,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 18:48:39,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 18:48:39,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 18:48:39,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 18:48:39,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 18:48:39,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 18:48:39,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 18:48:39,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 18:48:39,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 18:48:39,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 18:48:39,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 18:48:39,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 18:48:39,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 18:48:39,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 18:48:39,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 18:48:39,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 18:48:39,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 18:48:39,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 18:48:39,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 18:48:39,993 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-15 18:48:40,020 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 18:48:40,020 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 18:48:40,020 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 18:48:40,021 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 18:48:40,021 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 18:48:40,021 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 18:48:40,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 18:48:40,022 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 18:48:40,022 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 18:48:40,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 18:48:40,023 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 18:48:40,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 18:48:40,023 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 18:48:40,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 18:48:40,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 18:48:40,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 18:48:40,024 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 18:48:40,024 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 18:48:40,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 18:48:40,025 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 18:48:40,025 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 18:48:40,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 18:48:40,026 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 18:48:40,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 18:48:40,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 18:48:40,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 18:48:40,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 18:48:40,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 18:48:40,027 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 18:48:40,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 18:48:40,027 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 18:48:40,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 18:48:40,028 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 18:48:40,028 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 18:48:40,028 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 18:48:40,028 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81db346fb66b40514998cf838e858b3f0793fe5c74d5812efa60193ab54d6833 [2023-02-15 18:48:40,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 18:48:40,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 18:48:40,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 18:48:40,221 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 18:48:40,221 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 18:48:40,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array6_pattern.c [2023-02-15 18:48:41,360 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 18:48:41,526 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 18:48:41,526 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array6_pattern.c [2023-02-15 18:48:41,531 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f409c12d7/9086993f029f439fa3cc59619d538877/FLAG7958b71ce [2023-02-15 18:48:41,542 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f409c12d7/9086993f029f439fa3cc59619d538877 [2023-02-15 18:48:41,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 18:48:41,544 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 18:48:41,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 18:48:41,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 18:48:41,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 18:48:41,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 06:48:41" (1/1) ... [2023-02-15 18:48:41,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47e144d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:48:41, skipping insertion in model container [2023-02-15 18:48:41,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 06:48:41" (1/1) ... [2023-02-15 18:48:41,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 18:48:41,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 18:48:41,706 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/array-patterns/array6_pattern.c[1356,1369] [2023-02-15 18:48:41,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 18:48:41,736 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 18:48:41,744 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/array-patterns/array6_pattern.c[1356,1369] [2023-02-15 18:48:41,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 18:48:41,760 INFO L208 MainTranslator]: Completed translation [2023-02-15 18:48:41,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:48:41 WrapperNode [2023-02-15 18:48:41,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 18:48:41,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 18:48:41,762 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 18:48:41,762 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 18:48:41,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:48:41" (1/1) ... [2023-02-15 18:48:41,770 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:48:41" (1/1) ... [2023-02-15 18:48:41,784 INFO L138 Inliner]: procedures = 16, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2023-02-15 18:48:41,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 18:48:41,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 18:48:41,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 18:48:41,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 18:48:41,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:48:41" (1/1) ... [2023-02-15 18:48:41,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:48:41" (1/1) ... [2023-02-15 18:48:41,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:48:41" (1/1) ... [2023-02-15 18:48:41,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:48:41" (1/1) ... [2023-02-15 18:48:41,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:48:41" (1/1) ... [2023-02-15 18:48:41,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:48:41" (1/1) ... [2023-02-15 18:48:41,807 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:48:41" (1/1) ... [2023-02-15 18:48:41,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:48:41" (1/1) ... [2023-02-15 18:48:41,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 18:48:41,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 18:48:41,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 18:48:41,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 18:48:41,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:48:41" (1/1) ... [2023-02-15 18:48:41,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 18:48:41,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:48:41,842 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 18:48:41,846 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 18:48:41,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 18:48:41,869 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-02-15 18:48:41,869 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-02-15 18:48:41,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 18:48:41,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-15 18:48:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-15 18:48:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 18:48:41,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 18:48:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-15 18:48:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-15 18:48:41,921 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 18:48:41,923 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 18:48:42,043 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 18:48:42,049 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 18:48:42,049 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-02-15 18:48:42,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 06:48:42 BoogieIcfgContainer [2023-02-15 18:48:42,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 18:48:42,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 18:48:42,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 18:48:42,055 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 18:48:42,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 06:48:41" (1/3) ... [2023-02-15 18:48:42,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48121640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 06:48:42, skipping insertion in model container [2023-02-15 18:48:42,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:48:41" (2/3) ... [2023-02-15 18:48:42,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48121640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 06:48:42, skipping insertion in model container [2023-02-15 18:48:42,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 06:48:42" (3/3) ... [2023-02-15 18:48:42,058 INFO L112 eAbstractionObserver]: Analyzing ICFG array6_pattern.c [2023-02-15 18:48:42,072 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 18:48:42,072 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-15 18:48:42,110 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 18:48:42,116 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;@2fbb0703, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 18:48:42,116 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-15 18:48:42,135 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 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) [2023-02-15 18:48:42,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-15 18:48:42,142 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:48:42,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:48:42,143 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:48:42,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:48:42,153 INFO L85 PathProgramCache]: Analyzing trace with hash -800294020, now seen corresponding path program 1 times [2023-02-15 18:48:42,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:48:42,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981306166] [2023-02-15 18:48:42,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:48:42,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:48:42,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 18:48:42,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 18:48:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 18:48:42,356 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 18:48:42,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:48:42,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981306166] [2023-02-15 18:48:42,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981306166] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 18:48:42,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 18:48:42,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 18:48:42,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044393606] [2023-02-15 18:48:42,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 18:48:42,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-15 18:48:42,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:48:42,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-15 18:48:42,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 18:48:42,397 INFO L87 Difference]: Start difference. First operand has 25 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 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) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 18:48:42,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:48:42,416 INFO L93 Difference]: Finished difference Result 47 states and 66 transitions. [2023-02-15 18:48:42,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 18:48:42,419 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-02-15 18:48:42,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:48:42,427 INFO L225 Difference]: With dead ends: 47 [2023-02-15 18:48:42,427 INFO L226 Difference]: Without dead ends: 21 [2023-02-15 18:48:42,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 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 18:48:42,436 INFO L413 NwaCegarLoop]: 28 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, 28 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 18:48:42,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 18:48:42,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-02-15 18:48:42,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-02-15 18:48:42,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 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) [2023-02-15 18:48:42,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2023-02-15 18:48:42,474 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 15 [2023-02-15 18:48:42,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:48:42,475 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2023-02-15 18:48:42,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 18:48:42,476 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2023-02-15 18:48:42,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-15 18:48:42,478 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:48:42,478 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:48:42,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 18:48:42,479 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:48:42,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:48:42,484 INFO L85 PathProgramCache]: Analyzing trace with hash -952637313, now seen corresponding path program 1 times [2023-02-15 18:48:42,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:48:42,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498281498] [2023-02-15 18:48:42,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:48:42,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:48:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 18:48:42,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 18:48:42,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 18:48:42,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 18:48:42,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 18:48:42,772 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 18:48:42,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:48:42,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498281498] [2023-02-15 18:48:42,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498281498] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 18:48:42,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 18:48:42,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 18:48:42,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520038198] [2023-02-15 18:48:42,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 18:48:42,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 18:48:42,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:48:42,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 18:48:42,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 18:48:42,777 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-02-15 18:48:42,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:48:42,822 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2023-02-15 18:48:42,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 18:48:42,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 22 [2023-02-15 18:48:42,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:48:42,824 INFO L225 Difference]: With dead ends: 26 [2023-02-15 18:48:42,824 INFO L226 Difference]: Without dead ends: 22 [2023-02-15 18:48:42,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 18:48:42,826 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 4 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 18:48:42,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 54 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 18:48:42,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-15 18:48:42,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-02-15 18:48:42,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 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) [2023-02-15 18:48:42,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2023-02-15 18:48:42,831 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 22 [2023-02-15 18:48:42,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:48:42,833 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2023-02-15 18:48:42,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-02-15 18:48:42,833 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2023-02-15 18:48:42,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-15 18:48:42,834 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:48:42,834 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] [2023-02-15 18:48:42,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 18:48:42,835 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:48:42,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:48:42,835 INFO L85 PathProgramCache]: Analyzing trace with hash -603190335, now seen corresponding path program 1 times [2023-02-15 18:48:42,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:48:42,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292563352] [2023-02-15 18:48:42,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:48:42,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:48:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 18:48:42,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 18:48:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 18:48:42,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 18:48:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 18:48:43,003 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 18:48:43,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:48:43,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292563352] [2023-02-15 18:48:43,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292563352] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 18:48:43,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 18:48:43,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 18:48:43,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100921231] [2023-02-15 18:48:43,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 18:48:43,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 18:48:43,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:48:43,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 18:48:43,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 18:48:43,006 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2023-02-15 18:48:43,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:48:43,060 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2023-02-15 18:48:43,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 18:48:43,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 [2023-02-15 18:48:43,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:48:43,064 INFO L225 Difference]: With dead ends: 41 [2023-02-15 18:48:43,064 INFO L226 Difference]: Without dead ends: 25 [2023-02-15 18:48:43,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 18:48:43,071 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 15 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 18:48:43,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 55 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 18:48:43,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-02-15 18:48:43,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2023-02-15 18:48:43,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 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) [2023-02-15 18:48:43,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2023-02-15 18:48:43,083 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 24 [2023-02-15 18:48:43,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:48:43,084 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2023-02-15 18:48:43,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2023-02-15 18:48:43,085 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2023-02-15 18:48:43,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-15 18:48:43,085 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:48:43,086 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] [2023-02-15 18:48:43,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 18:48:43,087 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:48:43,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:48:43,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1366149955, now seen corresponding path program 1 times [2023-02-15 18:48:43,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:48:43,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417368427] [2023-02-15 18:48:43,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:48:43,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:48:43,116 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 18:48:43,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [831959068] [2023-02-15 18:48:43,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:48:43,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:48:43,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:48:43,120 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 18:48:43,121 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 18:48:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 18:48:43,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-15 18:48:43,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 18:48:43,325 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 18:48:43,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 18:48:43,461 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 18:48:43,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:48:43,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417368427] [2023-02-15 18:48:43,462 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 18:48:43,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831959068] [2023-02-15 18:48:43,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831959068] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 18:48:43,463 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 18:48:43,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2023-02-15 18:48:43,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346799372] [2023-02-15 18:48:43,465 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 18:48:43,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-15 18:48:43,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:48:43,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-15 18:48:43,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-02-15 18:48:43,467 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 18:48:43,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:48:43,667 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2023-02-15 18:48:43,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-02-15 18:48:43,668 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 26 [2023-02-15 18:48:43,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:48:43,671 INFO L225 Difference]: With dead ends: 71 [2023-02-15 18:48:43,671 INFO L226 Difference]: Without dead ends: 43 [2023-02-15 18:48:43,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2023-02-15 18:48:43,675 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 78 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 18:48:43,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 76 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 18:48:43,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-02-15 18:48:43,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 27. [2023-02-15 18:48:43,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 23 states have internal predecessors, (26), 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) [2023-02-15 18:48:43,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2023-02-15 18:48:43,682 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 26 [2023-02-15 18:48:43,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:48:43,682 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2023-02-15 18:48:43,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 18:48:43,682 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2023-02-15 18:48:43,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-15 18:48:43,683 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:48:43,683 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:48:43,692 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 18:48:43,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:48:43,889 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:48:43,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:48:43,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1559224519, now seen corresponding path program 2 times [2023-02-15 18:48:43,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:48:43,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777551469] [2023-02-15 18:48:43,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:48:43,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:48:43,912 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 18:48:43,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1663899697] [2023-02-15 18:48:43,912 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 18:48:43,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:48:43,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:48:43,914 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 18:48:43,916 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 18:48:43,984 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 18:48:43,984 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 18:48:43,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 18:48:43,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 18:48:44,063 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 18:48:44,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 18:48:44,132 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 18:48:44,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:48:44,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777551469] [2023-02-15 18:48:44,133 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 18:48:44,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663899697] [2023-02-15 18:48:44,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663899697] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 18:48:44,133 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 18:48:44,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2023-02-15 18:48:44,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010614073] [2023-02-15 18:48:44,134 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 18:48:44,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 18:48:44,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:48:44,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 18:48:44,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-02-15 18:48:44,136 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 18:48:44,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:48:44,257 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2023-02-15 18:48:44,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-15 18:48:44,258 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2023-02-15 18:48:44,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:48:44,258 INFO L225 Difference]: With dead ends: 39 [2023-02-15 18:48:44,258 INFO L226 Difference]: Without dead ends: 35 [2023-02-15 18:48:44,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2023-02-15 18:48:44,259 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 36 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 18:48:44,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 105 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 18:48:44,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-02-15 18:48:44,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-02-15 18:48:44,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 30 states have (on average 1.1) internal successors, (33), 30 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-15 18:48:44,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2023-02-15 18:48:44,265 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 30 [2023-02-15 18:48:44,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:48:44,266 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2023-02-15 18:48:44,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 18:48:44,266 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2023-02-15 18:48:44,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-02-15 18:48:44,267 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:48:44,267 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:48:44,272 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 18:48:44,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:48:44,473 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:48:44,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:48:44,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1722352949, now seen corresponding path program 3 times [2023-02-15 18:48:44,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:48:44,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704009265] [2023-02-15 18:48:44,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:48:44,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:48:44,493 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 18:48:44,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [310864416] [2023-02-15 18:48:44,494 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 18:48:44,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:48:44,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:48:44,496 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 18:48:44,508 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 18:48:44,647 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-02-15 18:48:44,647 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 18:48:44,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 79 conjunts are in the unsatisfiable core [2023-02-15 18:48:44,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 18:48:44,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-15 18:48:44,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:44,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2023-02-15 18:48:44,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2023-02-15 18:48:44,736 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 15 treesize of output 14 [2023-02-15 18:48:44,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-02-15 18:48:44,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:44,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 40 [2023-02-15 18:48:44,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2023-02-15 18:48:44,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:44,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 20 [2023-02-15 18:48:44,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:44,855 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 19 treesize of output 22 [2023-02-15 18:48:44,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:44,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 50 [2023-02-15 18:48:44,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:44,949 INFO L321 Elim1Store]: treesize reduction 42, result has 28.8 percent of original size [2023-02-15 18:48:44,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 34 [2023-02-15 18:48:44,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:44,970 INFO L321 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2023-02-15 18:48:44,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 60 [2023-02-15 18:48:45,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:45,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:45,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:45,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:45,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:45,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:45,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:45,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:45,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:45,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:45,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:45,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:45,570 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:48:45,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:45,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:45,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:45,574 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:48:45,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:45,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:45,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:45,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:45,580 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:48:45,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:45,585 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:48:45,642 INFO L321 Elim1Store]: treesize reduction 278, result has 9.4 percent of original size [2023-02-15 18:48:45,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 11 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 38 case distinctions, treesize of input 147 treesize of output 143 [2023-02-15 18:48:47,539 INFO L321 Elim1Store]: treesize reduction 814, result has 35.0 percent of original size [2023-02-15 18:48:47,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 3 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 171 treesize of output 497 [2023-02-15 18:48:53,836 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-15 18:48:53,899 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-15 18:48:54,174 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-15 18:48:54,228 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-15 18:48:55,195 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 18:48:55,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 18:48:56,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:48:56,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704009265] [2023-02-15 18:48:56,250 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 18:48:56,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310864416] [2023-02-15 18:48:56,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310864416] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 18:48:56,253 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-15 18:48:56,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2023-02-15 18:48:56,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188586014] [2023-02-15 18:48:56,254 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-15 18:48:56,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-02-15 18:48:56,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:48:56,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-02-15 18:48:56,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=899, Unknown=0, NotChecked=0, Total=1056 [2023-02-15 18:48:56,256 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 22 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 20 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-15 18:48:57,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:48:57,252 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2023-02-15 18:48:57,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-02-15 18:48:57,252 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 20 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2023-02-15 18:48:57,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:48:57,253 INFO L225 Difference]: With dead ends: 58 [2023-02-15 18:48:57,253 INFO L226 Difference]: Without dead ends: 54 [2023-02-15 18:48:57,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=237, Invalid=1403, Unknown=0, NotChecked=0, Total=1640 [2023-02-15 18:48:57,254 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 17 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-15 18:48:57,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 219 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-15 18:48:57,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-02-15 18:48:57,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 46. [2023-02-15 18:48:57,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 39 states have (on average 1.1025641025641026) internal successors, (43), 39 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 18:48:57,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2023-02-15 18:48:57,265 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 34 [2023-02-15 18:48:57,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:48:57,265 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2023-02-15 18:48:57,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 20 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-15 18:48:57,266 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2023-02-15 18:48:57,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-02-15 18:48:57,267 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:48:57,267 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:48:57,272 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 18:48:57,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:48:57,469 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:48:57,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:48:57,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1565541619, now seen corresponding path program 4 times [2023-02-15 18:48:57,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:48:57,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688363131] [2023-02-15 18:48:57,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:48:57,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:48:57,481 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 18:48:57,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1528560883] [2023-02-15 18:48:57,488 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 18:48:57,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:48:57,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:48:57,490 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 18:48:57,492 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 18:48:57,565 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 18:48:57,565 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 18:48:57,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-15 18:48:57,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 18:48:57,646 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 20 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 18:48:57,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 18:48:57,715 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 18:48:57,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:48:57,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688363131] [2023-02-15 18:48:57,715 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 18:48:57,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528560883] [2023-02-15 18:48:57,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528560883] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 18:48:57,715 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 18:48:57,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2023-02-15 18:48:57,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599286364] [2023-02-15 18:48:57,716 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 18:48:57,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-15 18:48:57,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:48:57,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-15 18:48:57,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2023-02-15 18:48:57,717 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-15 18:48:57,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:48:57,835 INFO L93 Difference]: Finished difference Result 103 states and 109 transitions. [2023-02-15 18:48:57,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-15 18:48:57,836 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2023-02-15 18:48:57,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:48:57,837 INFO L225 Difference]: With dead ends: 103 [2023-02-15 18:48:57,837 INFO L226 Difference]: Without dead ends: 89 [2023-02-15 18:48:57,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 52 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2023-02-15 18:48:57,838 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 55 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 18:48:57,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 118 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 18:48:57,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-02-15 18:48:57,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 72. [2023-02-15 18:48:57,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 61 states have (on average 1.098360655737705) internal successors, (67), 61 states have internal predecessors, (67), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-15 18:48:57,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 77 transitions. [2023-02-15 18:48:57,855 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 77 transitions. Word has length 36 [2023-02-15 18:48:57,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:48:57,855 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 77 transitions. [2023-02-15 18:48:57,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-15 18:48:57,856 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 77 transitions. [2023-02-15 18:48:57,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-02-15 18:48:57,856 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:48:57,856 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:48:57,867 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 18:48:58,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:48:58,065 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:48:58,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:48:58,066 INFO L85 PathProgramCache]: Analyzing trace with hash -285980785, now seen corresponding path program 5 times [2023-02-15 18:48:58,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:48:58,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592978666] [2023-02-15 18:48:58,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:48:58,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:48:58,075 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 18:48:58,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1979235675] [2023-02-15 18:48:58,075 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 18:48:58,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:48:58,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:48:58,077 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 18:48:58,079 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 18:48:58,233 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-02-15 18:48:58,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 18:48:58,235 WARN L261 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 98 conjunts are in the unsatisfiable core [2023-02-15 18:48:58,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 18:48:58,264 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-15 18:48:58,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:58,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2023-02-15 18:48:58,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2023-02-15 18:48:58,309 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 15 treesize of output 14 [2023-02-15 18:48:58,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-02-15 18:48:58,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:58,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 67 [2023-02-15 18:48:58,411 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 33 treesize of output 37 [2023-02-15 18:48:58,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 72 [2023-02-15 18:48:58,555 INFO L321 Elim1Store]: treesize reduction 33, result has 13.2 percent of original size [2023-02-15 18:48:58,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 147 treesize of output 127 [2023-02-15 18:48:58,564 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 0 case distinctions, treesize of input 42 treesize of output 45 [2023-02-15 18:48:58,587 INFO L321 Elim1Store]: treesize reduction 51, result has 8.9 percent of original size [2023-02-15 18:48:58,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 83 treesize of output 92 [2023-02-15 18:48:58,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 54 [2023-02-15 18:48:58,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 61 [2023-02-15 18:48:58,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 65 [2023-02-15 18:48:58,650 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 5 [2023-02-15 18:48:58,815 INFO L321 Elim1Store]: treesize reduction 41, result has 10.9 percent of original size [2023-02-15 18:48:58,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 199 treesize of output 145 [2023-02-15 18:48:58,840 INFO L321 Elim1Store]: treesize reduction 68, result has 6.8 percent of original size [2023-02-15 18:48:58,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 161 treesize of output 150 [2023-02-15 18:48:58,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:58,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:58,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:58,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:58,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:58,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 101 [2023-02-15 18:48:58,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:58,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:58,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:58,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:58,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:58,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 91 [2023-02-15 18:48:58,882 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 20 treesize of output 19 [2023-02-15 18:48:58,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 96 [2023-02-15 18:48:58,931 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 17 treesize of output 11 [2023-02-15 18:48:59,519 INFO L321 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2023-02-15 18:48:59,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 419 treesize of output 280 [2023-02-15 18:48:59,533 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 158 treesize of output 130 [2023-02-15 18:48:59,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 151 [2023-02-15 18:48:59,596 INFO L321 Elim1Store]: treesize reduction 116, result has 4.1 percent of original size [2023-02-15 18:48:59,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 275 treesize of output 298 [2023-02-15 18:48:59,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:59,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:59,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:59,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:59,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:59,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:59,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:59,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:59,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:59,683 INFO L321 Elim1Store]: treesize reduction 159, result has 14.1 percent of original size [2023-02-15 18:48:59,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 222 [2023-02-15 18:48:59,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:59,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:59,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:59,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:59,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:59,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:59,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:59,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:59,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:48:59,760 INFO L321 Elim1Store]: treesize reduction 81, result has 24.3 percent of original size [2023-02-15 18:48:59,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 91 [2023-02-15 18:48:59,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 62 [2023-02-15 18:48:59,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 11 [2023-02-15 18:48:59,870 INFO L321 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2023-02-15 18:48:59,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 140 treesize of output 119 [2023-02-15 18:48:59,880 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 47 treesize of output 35 [2023-02-15 18:49:01,004 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-15 18:49:01,005 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 205 treesize of output 161 [2023-02-15 18:49:01,058 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 18:49:01,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 175 treesize of output 257 [2023-02-15 18:49:01,131 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 18:49:01,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 185 treesize of output 265 [2023-02-15 18:49:01,945 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 18:49:01,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 18:49:02,351 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_382 (Array Int Int)) (v_ArrVal_383 (Array Int Int))) (= (let ((.cse3 (* |c_ULTIMATE.start_main_~index~0#1| 4))) (let ((.cse1 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_382) |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ .cse3 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (let ((.cse4 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_383) |c_ULTIMATE.start_main_~#array2~0#1.base|))) (+ (select .cse4 (+ .cse3 |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)) (select .cse4 (+ .cse3 |c_ULTIMATE.start_main_~#array2~0#1.offset| (- 4)))))))) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|))) (store .cse2 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse3) (+ (select .cse2 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse3 4)) (select .cse2 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse3 (- 4))))))) |c_ULTIMATE.start_main_~#array2~0#1.base| .cse1) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse0 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 8)) (select .cse0 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 4)) (select .cse1 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 12)) (select .cse1 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)) (select .cse0 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 12)) (select .cse0 |c_ULTIMATE.start_main_~#array1~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse1 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse1 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 8)))))) 0)) is different from false [2023-02-15 18:49:02,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:49:02,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592978666] [2023-02-15 18:49:02,760 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 18:49:02,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979235675] [2023-02-15 18:49:02,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979235675] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 18:49:02,760 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-15 18:49:02,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2023-02-15 18:49:02,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684144664] [2023-02-15 18:49:02,761 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-15 18:49:02,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-02-15 18:49:02,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:49:02,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-02-15 18:49:02,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=1119, Unknown=1, NotChecked=68, Total=1332 [2023-02-15 18:49:02,762 INFO L87 Difference]: Start difference. First operand 72 states and 77 transitions. Second operand has 26 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 23 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-15 18:49:04,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:49:04,854 INFO L93 Difference]: Finished difference Result 100 states and 108 transitions. [2023-02-15 18:49:04,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-02-15 18:49:04,854 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 23 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2023-02-15 18:49:04,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:49:04,855 INFO L225 Difference]: With dead ends: 100 [2023-02-15 18:49:04,855 INFO L226 Difference]: Without dead ends: 96 [2023-02-15 18:49:04,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 14 SyntacticMatches, 4 SemanticMatches, 49 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=286, Invalid=2167, Unknown=1, NotChecked=96, Total=2550 [2023-02-15 18:49:04,859 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 52 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-02-15 18:49:04,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 287 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-02-15 18:49:04,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-02-15 18:49:04,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 85. [2023-02-15 18:49:04,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 72 states have (on average 1.1111111111111112) internal successors, (80), 72 states have internal predecessors, (80), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-15 18:49:04,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 92 transitions. [2023-02-15 18:49:04,882 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 92 transitions. Word has length 38 [2023-02-15 18:49:04,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:49:04,882 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 92 transitions. [2023-02-15 18:49:04,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 23 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-15 18:49:04,882 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 92 transitions. [2023-02-15 18:49:04,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-02-15 18:49:04,883 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:49:04,883 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:49:04,891 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 18:49:05,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:49:05,092 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:49:05,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:49:05,092 INFO L85 PathProgramCache]: Analyzing trace with hash 103605969, now seen corresponding path program 6 times [2023-02-15 18:49:05,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:49:05,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868360093] [2023-02-15 18:49:05,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:49:05,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:49:05,105 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 18:49:05,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1385424274] [2023-02-15 18:49:05,105 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 18:49:05,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:49:05,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:49:05,107 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 18:49:05,115 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 18:49:05,247 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2023-02-15 18:49:05,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 18:49:05,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-15 18:49:05,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 18:49:05,349 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 29 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 18:49:05,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 18:49:05,428 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 18:49:05,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:49:05,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868360093] [2023-02-15 18:49:05,429 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 18:49:05,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385424274] [2023-02-15 18:49:05,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385424274] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 18:49:05,429 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 18:49:05,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2023-02-15 18:49:05,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649293957] [2023-02-15 18:49:05,429 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 18:49:05,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-02-15 18:49:05,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:49:05,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-02-15 18:49:05,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2023-02-15 18:49:05,430 INFO L87 Difference]: Start difference. First operand 85 states and 92 transitions. Second operand has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-15 18:49:05,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:49:05,646 INFO L93 Difference]: Finished difference Result 143 states and 151 transitions. [2023-02-15 18:49:05,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-02-15 18:49:05,653 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2023-02-15 18:49:05,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:49:05,656 INFO L225 Difference]: With dead ends: 143 [2023-02-15 18:49:05,656 INFO L226 Difference]: Without dead ends: 127 [2023-02-15 18:49:05,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 56 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=220, Invalid=592, Unknown=0, NotChecked=0, Total=812 [2023-02-15 18:49:05,659 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 81 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 18:49:05,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 157 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 18:49:05,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-02-15 18:49:05,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 98. [2023-02-15 18:49:05,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 83 states have (on average 1.108433734939759) internal successors, (92), 83 states have internal predecessors, (92), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-15 18:49:05,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 106 transitions. [2023-02-15 18:49:05,703 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 106 transitions. Word has length 40 [2023-02-15 18:49:05,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:49:05,703 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 106 transitions. [2023-02-15 18:49:05,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-15 18:49:05,704 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 106 transitions. [2023-02-15 18:49:05,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-02-15 18:49:05,710 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:49:05,710 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:49:05,716 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-02-15 18:49:05,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:49:05,917 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:49:05,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:49:05,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1011334033, now seen corresponding path program 7 times [2023-02-15 18:49:05,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:49:05,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191856839] [2023-02-15 18:49:05,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:49:05,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:49:05,930 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 18:49:05,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1772253790] [2023-02-15 18:49:05,931 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-15 18:49:05,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:49:05,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:49:05,932 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 18:49:05,935 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 18:49:06,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 18:49:06,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-15 18:49:06,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 18:49:06,118 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 20 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 18:49:06,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 18:49:06,193 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 18:49:06,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:49:06,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191856839] [2023-02-15 18:49:06,193 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 18:49:06,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772253790] [2023-02-15 18:49:06,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772253790] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 18:49:06,194 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 18:49:06,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2023-02-15 18:49:06,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080784210] [2023-02-15 18:49:06,194 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 18:49:06,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-02-15 18:49:06,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:49:06,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-02-15 18:49:06,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2023-02-15 18:49:06,196 INFO L87 Difference]: Start difference. First operand 98 states and 106 transitions. Second operand has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-15 18:49:06,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:49:06,405 INFO L93 Difference]: Finished difference Result 122 states and 129 transitions. [2023-02-15 18:49:06,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-02-15 18:49:06,405 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2023-02-15 18:49:06,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:49:06,406 INFO L225 Difference]: With dead ends: 122 [2023-02-15 18:49:06,406 INFO L226 Difference]: Without dead ends: 118 [2023-02-15 18:49:06,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 56 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=209, Invalid=603, Unknown=0, NotChecked=0, Total=812 [2023-02-15 18:49:06,407 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 65 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 18:49:06,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 155 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 18:49:06,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-02-15 18:49:06,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 91. [2023-02-15 18:49:06,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 78 states have (on average 1.1025641025641026) internal successors, (86), 78 states have internal predecessors, (86), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-15 18:49:06,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 98 transitions. [2023-02-15 18:49:06,431 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 98 transitions. Word has length 40 [2023-02-15 18:49:06,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:49:06,431 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 98 transitions. [2023-02-15 18:49:06,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-15 18:49:06,431 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 98 transitions. [2023-02-15 18:49:06,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-02-15 18:49:06,432 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:49:06,432 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:49:06,437 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 18:49:06,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:49:06,637 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:49:06,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:49:06,637 INFO L85 PathProgramCache]: Analyzing trace with hash -943992564, now seen corresponding path program 1 times [2023-02-15 18:49:06,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:49:06,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513896507] [2023-02-15 18:49:06,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:49:06,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:49:06,652 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 18:49:06,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [15752420] [2023-02-15 18:49:06,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:49:06,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:49:06,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:49:06,653 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 18:49:06,656 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 18:49:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 18:49:06,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 97 conjunts are in the unsatisfiable core [2023-02-15 18:49:06,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 18:49:06,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-15 18:49:06,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:06,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2023-02-15 18:49:06,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2023-02-15 18:49:06,820 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 15 treesize of output 14 [2023-02-15 18:49:06,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-02-15 18:49:06,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:06,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:06,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 46 [2023-02-15 18:49:06,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:06,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:06,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:06,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:06,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 62 [2023-02-15 18:49:07,356 INFO L321 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2023-02-15 18:49:07,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 146 treesize of output 103 [2023-02-15 18:49:07,361 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 0 case distinctions, treesize of input 38 treesize of output 41 [2023-02-15 18:49:07,379 INFO L321 Elim1Store]: treesize reduction 50, result has 16.7 percent of original size [2023-02-15 18:49:07,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 97 [2023-02-15 18:49:07,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:07,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:07,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:07,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 44 [2023-02-15 18:49:07,401 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:07,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:07,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:07,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:07,404 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:07,404 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:07,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2023-02-15 18:49:07,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 52 [2023-02-15 18:49:07,417 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 17 treesize of output 11 [2023-02-15 18:49:07,797 INFO L321 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2023-02-15 18:49:07,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 340 treesize of output 223 [2023-02-15 18:49:07,811 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 158 treesize of output 130 [2023-02-15 18:49:07,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 151 [2023-02-15 18:49:07,853 INFO L321 Elim1Store]: treesize reduction 116, result has 4.1 percent of original size [2023-02-15 18:49:07,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 174 treesize of output 217 [2023-02-15 18:49:07,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:07,863 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:07,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:07,864 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:07,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:07,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 124 [2023-02-15 18:49:07,879 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:07,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:07,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:07,881 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:07,882 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:07,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 47 [2023-02-15 18:49:07,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 110 treesize of output 92 [2023-02-15 18:49:08,005 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 27 treesize of output 16 [2023-02-15 18:49:08,011 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 16 treesize of output 1 [2023-02-15 18:49:08,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:08,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:08,547 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:08,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:08,548 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:08,560 INFO L321 Elim1Store]: treesize reduction 48, result has 12.7 percent of original size [2023-02-15 18:49:08,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 184 treesize of output 102 [2023-02-15 18:49:08,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:08,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:08,568 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 82 treesize of output 56 [2023-02-15 18:49:08,620 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 18:49:08,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 18:49:08,877 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_652 (Array Int Int)) (v_ArrVal_654 (Array Int Int))) (= (let ((.cse3 (* |c_ULTIMATE.start_main_~index~0#1| 4))) (let ((.cse0 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_652) |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ .cse3 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (let ((.cse4 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_654) |c_ULTIMATE.start_main_~#array2~0#1.base|))) (+ (select .cse4 (+ .cse3 |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)) (select .cse4 (+ .cse3 |c_ULTIMATE.start_main_~#array2~0#1.offset| (- 4)))))))) (let ((.cse1 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|))) (store .cse2 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse3) (+ (select .cse2 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse3 4)) (select .cse2 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse3 (- 4))))))) |c_ULTIMATE.start_main_~#array2~0#1.base| .cse0) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse0 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 8)) (select .cse1 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 4)) (select .cse1 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse1 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 8)) (select .cse0 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)) (select .cse0 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1|)))) 0)) is different from false [2023-02-15 18:49:09,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:49:09,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513896507] [2023-02-15 18:49:09,158 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 18:49:09,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15752420] [2023-02-15 18:49:09,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15752420] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 18:49:09,158 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-15 18:49:09,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2023-02-15 18:49:09,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015425634] [2023-02-15 18:49:09,158 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-15 18:49:09,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-02-15 18:49:09,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:49:09,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-02-15 18:49:09,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1118, Unknown=7, NotChecked=68, Total=1332 [2023-02-15 18:49:09,159 INFO L87 Difference]: Start difference. First operand 91 states and 98 transitions. Second operand has 28 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 23 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 18:49:10,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:49:10,446 INFO L93 Difference]: Finished difference Result 97 states and 103 transitions. [2023-02-15 18:49:10,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-02-15 18:49:10,447 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 23 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 42 [2023-02-15 18:49:10,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:49:10,447 INFO L225 Difference]: With dead ends: 97 [2023-02-15 18:49:10,447 INFO L226 Difference]: Without dead ends: 69 [2023-02-15 18:49:10,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 17 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 703 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=309, Invalid=2238, Unknown=7, NotChecked=98, Total=2652 [2023-02-15 18:49:10,449 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 58 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-15 18:49:10,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 248 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-15 18:49:10,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-02-15 18:49:10,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-02-15 18:49:10,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 60 states have (on average 1.1) internal successors, (66), 60 states have internal predecessors, (66), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 18:49:10,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2023-02-15 18:49:10,466 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 42 [2023-02-15 18:49:10,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:49:10,467 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2023-02-15 18:49:10,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 23 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 18:49:10,467 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2023-02-15 18:49:10,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-02-15 18:49:10,467 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:49:10,467 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:49:10,473 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 18:49:10,669 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,SelfDestructingSolverStorable10 [2023-02-15 18:49:10,669 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:49:10,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:49:10,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1282630227, now seen corresponding path program 8 times [2023-02-15 18:49:10,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:49:10,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494585924] [2023-02-15 18:49:10,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:49:10,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:49:10,680 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 18:49:10,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1406603644] [2023-02-15 18:49:10,680 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 18:49:10,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:49:10,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:49:10,682 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 18:49:10,685 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 18:49:10,936 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 18:49:10,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 18:49:10,938 WARN L261 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 124 conjunts are in the unsatisfiable core [2023-02-15 18:49:10,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 18:49:10,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-15 18:49:10,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:10,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2023-02-15 18:49:10,996 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 15 treesize of output 14 [2023-02-15 18:49:11,006 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 32 treesize of output 31 [2023-02-15 18:49:11,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 48 [2023-02-15 18:49:11,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,196 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:11,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,198 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:11,207 INFO L321 Elim1Store]: treesize reduction 39, result has 26.4 percent of original size [2023-02-15 18:49:11,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 82 treesize of output 74 [2023-02-15 18:49:11,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,348 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:11,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,354 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:11,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,356 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:11,369 INFO L321 Elim1Store]: treesize reduction 47, result has 23.0 percent of original size [2023-02-15 18:49:11,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 117 treesize of output 115 [2023-02-15 18:49:11,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,538 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:11,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,540 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:11,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,541 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:11,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:11,542 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:11,551 INFO L321 Elim1Store]: treesize reduction 55, result has 16.7 percent of original size [2023-02-15 18:49:11,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 11 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 116 treesize of output 123 [2023-02-15 18:49:12,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,134 INFO L321 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2023-02-15 18:49:12,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 237 treesize of output 176 [2023-02-15 18:49:12,166 INFO L321 Elim1Store]: treesize reduction 88, result has 5.4 percent of original size [2023-02-15 18:49:12,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 158 treesize of output 153 [2023-02-15 18:49:12,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,236 INFO L321 Elim1Store]: treesize reduction 114, result has 28.7 percent of original size [2023-02-15 18:49:12,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 98 treesize of output 136 [2023-02-15 18:49:12,250 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 32 treesize of output 31 [2023-02-15 18:49:12,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,318 INFO L321 Elim1Store]: treesize reduction 114, result has 28.7 percent of original size [2023-02-15 18:49:12,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 62 treesize of output 114 [2023-02-15 18:49:12,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 112 [2023-02-15 18:49:12,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:12,395 INFO L321 Elim1Store]: treesize reduction 90, result has 1.1 percent of original size [2023-02-15 18:49:12,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 19 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 112 treesize of output 1 [2023-02-15 18:49:14,427 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2023-02-15 18:49:14,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 10 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 555 treesize of output 375 [2023-02-15 18:49:14,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 90 [2023-02-15 18:49:14,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 90 [2023-02-15 18:49:14,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 91 [2023-02-15 18:49:14,516 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 18:49:14,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 18:49:15,076 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_776 (Array Int Int))) (= (let ((.cse3 (* |c_ULTIMATE.start_main_~index~0#1| 4))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|))) (store .cse5 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse3) (+ (select .cse5 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse3 4)) (select .cse5 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse3 (- 4))))))))) (let ((.cse0 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_776) |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ .cse3 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (let ((.cse4 (select .cse2 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (+ (select .cse4 (+ .cse3 |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)) (select .cse4 (+ .cse3 |c_ULTIMATE.start_main_~#array2~0#1.offset| (- 4)))))))) (let ((.cse1 (select (store .cse2 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse0) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse0 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)) (select .cse0 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 16)) (select .cse1 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 12)) (select .cse0 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 8)) (select .cse1 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 4)) (select .cse1 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 8)) (select .cse1 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 16)) |c_ULTIMATE.start_main_~sum~0#1| (select .cse0 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse1 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse0 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 12))))))) 0)) is different from false [2023-02-15 18:49:16,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:49:16,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494585924] [2023-02-15 18:49:16,152 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 18:49:16,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406603644] [2023-02-15 18:49:16,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406603644] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 18:49:16,152 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-15 18:49:16,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2023-02-15 18:49:16,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816074309] [2023-02-15 18:49:16,153 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-15 18:49:16,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-02-15 18:49:16,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:49:16,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-02-15 18:49:16,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=1468, Unknown=4, NotChecked=78, Total=1722 [2023-02-15 18:49:16,154 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand has 29 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 26 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-15 18:49:18,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:49:18,617 INFO L93 Difference]: Finished difference Result 98 states and 106 transitions. [2023-02-15 18:49:18,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-02-15 18:49:18,618 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 26 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2023-02-15 18:49:18,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:49:18,619 INFO L225 Difference]: With dead ends: 98 [2023-02-15 18:49:18,619 INFO L226 Difference]: Without dead ends: 94 [2023-02-15 18:49:18,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 14 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 874 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=334, Invalid=2746, Unknown=4, NotChecked=108, Total=3192 [2023-02-15 18:49:18,620 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 57 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-02-15 18:49:18,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 222 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-02-15 18:49:18,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-02-15 18:49:18,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 82. [2023-02-15 18:49:18,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 71 states have (on average 1.1126760563380282) internal successors, (79), 71 states have internal predecessors, (79), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-15 18:49:18,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 89 transitions. [2023-02-15 18:49:18,650 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 89 transitions. Word has length 42 [2023-02-15 18:49:18,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:49:18,651 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 89 transitions. [2023-02-15 18:49:18,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 26 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-15 18:49:18,651 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 89 transitions. [2023-02-15 18:49:18,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-02-15 18:49:18,652 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:49:18,652 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:49:18,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-15 18:49:18,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:49:18,859 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:49:18,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:49:18,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1773046770, now seen corresponding path program 2 times [2023-02-15 18:49:18,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:49:18,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618520794] [2023-02-15 18:49:18,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:49:18,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:49:18,872 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 18:49:18,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1326650656] [2023-02-15 18:49:18,873 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 18:49:18,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:49:18,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:49:18,874 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 18:49:18,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-15 18:49:18,971 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 18:49:18,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 18:49:18,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-15 18:49:18,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 18:49:19,056 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 17 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-02-15 18:49:19,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 18:49:19,120 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-15 18:49:19,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:49:19,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618520794] [2023-02-15 18:49:19,121 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 18:49:19,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326650656] [2023-02-15 18:49:19,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326650656] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 18:49:19,121 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 18:49:19,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2023-02-15 18:49:19,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549827887] [2023-02-15 18:49:19,122 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 18:49:19,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-15 18:49:19,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:49:19,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-15 18:49:19,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2023-02-15 18:49:19,123 INFO L87 Difference]: Start difference. First operand 82 states and 89 transitions. Second operand has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-15 18:49:19,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:49:19,304 INFO L93 Difference]: Finished difference Result 94 states and 100 transitions. [2023-02-15 18:49:19,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-15 18:49:19,305 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 44 [2023-02-15 18:49:19,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:49:19,306 INFO L225 Difference]: With dead ends: 94 [2023-02-15 18:49:19,306 INFO L226 Difference]: Without dead ends: 90 [2023-02-15 18:49:19,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 68 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2023-02-15 18:49:19,308 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 46 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 18:49:19,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 120 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 18:49:19,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-02-15 18:49:19,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 82. [2023-02-15 18:49:19,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 71 states have (on average 1.0985915492957747) internal successors, (78), 71 states have internal predecessors, (78), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-15 18:49:19,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2023-02-15 18:49:19,341 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 44 [2023-02-15 18:49:19,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:49:19,342 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2023-02-15 18:49:19,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-15 18:49:19,342 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2023-02-15 18:49:19,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-02-15 18:49:19,343 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:49:19,343 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:49:19,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-15 18:49:19,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-02-15 18:49:19,549 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:49:19,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:49:19,549 INFO L85 PathProgramCache]: Analyzing trace with hash 5267605, now seen corresponding path program 9 times [2023-02-15 18:49:19,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:49:19,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005019804] [2023-02-15 18:49:19,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:49:19,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:49:19,558 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 18:49:19,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1180207981] [2023-02-15 18:49:19,558 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 18:49:19,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:49:19,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:49:19,560 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 18:49:19,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-15 18:49:19,816 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2023-02-15 18:49:19,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 18:49:19,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-15 18:49:19,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 18:49:19,926 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 40 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 18:49:19,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 18:49:20,023 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 18:49:20,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:49:20,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005019804] [2023-02-15 18:49:20,024 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 18:49:20,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180207981] [2023-02-15 18:49:20,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180207981] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 18:49:20,024 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 18:49:20,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 21 [2023-02-15 18:49:20,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620173948] [2023-02-15 18:49:20,024 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 18:49:20,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-02-15 18:49:20,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:49:20,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-02-15 18:49:20,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2023-02-15 18:49:20,025 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-15 18:49:20,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:49:20,278 INFO L93 Difference]: Finished difference Result 133 states and 139 transitions. [2023-02-15 18:49:20,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-02-15 18:49:20,279 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 44 [2023-02-15 18:49:20,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:49:20,279 INFO L225 Difference]: With dead ends: 133 [2023-02-15 18:49:20,279 INFO L226 Difference]: Without dead ends: 115 [2023-02-15 18:49:20,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 60 SyntacticMatches, 7 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2023-02-15 18:49:20,280 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 124 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 18:49:20,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 143 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 18:49:20,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-02-15 18:49:20,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 90. [2023-02-15 18:49:20,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 77 states have (on average 1.0909090909090908) internal successors, (84), 77 states have internal predecessors, (84), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-15 18:49:20,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 96 transitions. [2023-02-15 18:49:20,305 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 96 transitions. Word has length 44 [2023-02-15 18:49:20,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:49:20,305 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 96 transitions. [2023-02-15 18:49:20,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-15 18:49:20,305 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 96 transitions. [2023-02-15 18:49:20,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-02-15 18:49:20,305 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:49:20,305 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:49:20,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-15 18:49:20,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-02-15 18:49:20,506 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:49:20,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:49:20,506 INFO L85 PathProgramCache]: Analyzing trace with hash 453576021, now seen corresponding path program 10 times [2023-02-15 18:49:20,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:49:20,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596723794] [2023-02-15 18:49:20,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:49:20,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:49:20,515 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 18:49:20,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1367435460] [2023-02-15 18:49:20,516 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 18:49:20,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:49:20,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:49:20,517 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 18:49:20,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-15 18:49:20,672 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 18:49:20,673 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 18:49:20,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-15 18:49:20,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 18:49:20,793 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 29 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 18:49:20,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 18:49:20,888 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 25 proven. 36 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 18:49:20,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:49:20,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596723794] [2023-02-15 18:49:20,888 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 18:49:20,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367435460] [2023-02-15 18:49:20,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367435460] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 18:49:20,888 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 18:49:20,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 21 [2023-02-15 18:49:20,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084888147] [2023-02-15 18:49:20,889 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 18:49:20,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-02-15 18:49:20,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:49:20,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-02-15 18:49:20,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2023-02-15 18:49:20,890 INFO L87 Difference]: Start difference. First operand 90 states and 96 transitions. Second operand has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-15 18:49:21,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:49:21,113 INFO L93 Difference]: Finished difference Result 114 states and 118 transitions. [2023-02-15 18:49:21,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-02-15 18:49:21,114 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 44 [2023-02-15 18:49:21,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:49:21,115 INFO L225 Difference]: With dead ends: 114 [2023-02-15 18:49:21,115 INFO L226 Difference]: Without dead ends: 110 [2023-02-15 18:49:21,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 60 SyntacticMatches, 7 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=279, Invalid=843, Unknown=0, NotChecked=0, Total=1122 [2023-02-15 18:49:21,116 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 59 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 18:49:21,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 165 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 18:49:21,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-02-15 18:49:21,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 92. [2023-02-15 18:49:21,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 79 states have (on average 1.0886075949367089) internal successors, (86), 79 states have internal predecessors, (86), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-15 18:49:21,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 98 transitions. [2023-02-15 18:49:21,145 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 98 transitions. Word has length 44 [2023-02-15 18:49:21,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:49:21,145 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 98 transitions. [2023-02-15 18:49:21,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-15 18:49:21,145 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 98 transitions. [2023-02-15 18:49:21,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-02-15 18:49:21,145 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:49:21,146 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:49:21,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-15 18:49:21,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-02-15 18:49:21,349 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:49:21,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:49:21,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1257303952, now seen corresponding path program 3 times [2023-02-15 18:49:21,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:49:21,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107701296] [2023-02-15 18:49:21,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:49:21,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:49:21,358 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 18:49:21,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1232958012] [2023-02-15 18:49:21,359 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 18:49:21,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:49:21,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:49:21,360 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 18:49:21,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-15 18:49:21,833 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2023-02-15 18:49:21,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 18:49:21,836 WARN L261 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 117 conjunts are in the unsatisfiable core [2023-02-15 18:49:21,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 18:49:21,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-15 18:49:21,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2023-02-15 18:49:21,868 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 15 treesize of output 14 [2023-02-15 18:49:21,870 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 32 treesize of output 31 [2023-02-15 18:49:21,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2023-02-15 18:49:21,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,929 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 21 treesize of output 25 [2023-02-15 18:49:21,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 51 [2023-02-15 18:49:22,018 INFO L321 Elim1Store]: treesize reduction 33, result has 13.2 percent of original size [2023-02-15 18:49:22,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 87 [2023-02-15 18:49:22,023 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 0 case distinctions, treesize of input 42 treesize of output 45 [2023-02-15 18:49:22,035 INFO L321 Elim1Store]: treesize reduction 51, result has 8.9 percent of original size [2023-02-15 18:49:22,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 74 [2023-02-15 18:49:22,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-02-15 18:49:22,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 36 [2023-02-15 18:49:22,215 INFO L321 Elim1Store]: treesize reduction 41, result has 10.9 percent of original size [2023-02-15 18:49:22,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 293 treesize of output 229 [2023-02-15 18:49:22,237 INFO L321 Elim1Store]: treesize reduction 68, result has 6.8 percent of original size [2023-02-15 18:49:22,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 240 treesize of output 219 [2023-02-15 18:49:22,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 192 treesize of output 150 [2023-02-15 18:49:22,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,251 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:22,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 64 [2023-02-15 18:49:22,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-02-15 18:49:22,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 72 [2023-02-15 18:49:22,784 INFO L321 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2023-02-15 18:49:22,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 427 treesize of output 304 [2023-02-15 18:49:22,799 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 158 treesize of output 130 [2023-02-15 18:49:22,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 151 [2023-02-15 18:49:22,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 196 treesize of output 250 [2023-02-15 18:49:22,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,885 INFO L321 Elim1Store]: treesize reduction 159, result has 14.1 percent of original size [2023-02-15 18:49:22,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 108 treesize of output 191 [2023-02-15 18:49:22,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,944 INFO L321 Elim1Store]: treesize reduction 86, result has 19.6 percent of original size [2023-02-15 18:49:22,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 121 treesize of output 152 [2023-02-15 18:49:22,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,960 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:22,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:22,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 80 [2023-02-15 18:49:23,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 125 treesize of output 115 [2023-02-15 18:49:23,089 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 111 treesize of output 85 [2023-02-15 18:49:24,172 INFO L321 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2023-02-15 18:49:24,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 489 treesize of output 338 [2023-02-15 18:49:24,184 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 158 treesize of output 130 [2023-02-15 18:49:24,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 151 [2023-02-15 18:49:24,265 INFO L321 Elim1Store]: treesize reduction 116, result has 4.1 percent of original size [2023-02-15 18:49:24,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 324 treesize of output 349 [2023-02-15 18:49:24,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,811 INFO L321 Elim1Store]: treesize reduction 295, result has 33.6 percent of original size [2023-02-15 18:49:24,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 15 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 30 case distinctions, treesize of input 173 treesize of output 297 [2023-02-15 18:49:24,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:25,141 INFO L321 Elim1Store]: treesize reduction 521, result has 22.8 percent of original size [2023-02-15 18:49:25,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 9 select indices, 9 select index equivalence classes, 18 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 32 case distinctions, treesize of input 187 treesize of output 366 [2023-02-15 18:49:27,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 345 treesize of output 313 [2023-02-15 18:49:27,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 17 [2023-02-15 18:49:27,140 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 17 treesize of output 11 [2023-02-15 18:49:29,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:29,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:29,130 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:29,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:29,239 INFO L321 Elim1Store]: treesize reduction 220, result has 31.0 percent of original size [2023-02-15 18:49:29,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 6 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 283 treesize of output 219 [2023-02-15 18:49:29,620 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 8 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 18:49:29,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 18:49:32,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:49:32,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107701296] [2023-02-15 18:49:32,384 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 18:49:32,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232958012] [2023-02-15 18:49:32,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232958012] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 18:49:32,384 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-15 18:49:32,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2023-02-15 18:49:32,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688129644] [2023-02-15 18:49:32,385 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-15 18:49:32,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-02-15 18:49:32,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:49:32,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-02-15 18:49:32,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=1533, Unknown=3, NotChecked=0, Total=1806 [2023-02-15 18:49:32,386 INFO L87 Difference]: Start difference. First operand 92 states and 98 transitions. Second operand has 30 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 26 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 18:49:34,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:49:34,011 INFO L93 Difference]: Finished difference Result 118 states and 125 transitions. [2023-02-15 18:49:34,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-02-15 18:49:34,012 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 26 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 46 [2023-02-15 18:49:34,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:49:34,013 INFO L225 Difference]: With dead ends: 118 [2023-02-15 18:49:34,013 INFO L226 Difference]: Without dead ends: 104 [2023-02-15 18:49:34,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 16 SyntacticMatches, 4 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=410, Invalid=2239, Unknown=3, NotChecked=0, Total=2652 [2023-02-15 18:49:34,014 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 36 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-02-15 18:49:34,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 321 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-02-15 18:49:34,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-02-15 18:49:34,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 100. [2023-02-15 18:49:34,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 85 states have (on average 1.0823529411764705) internal successors, (92), 85 states have internal predecessors, (92), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-15 18:49:34,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 106 transitions. [2023-02-15 18:49:34,043 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 106 transitions. Word has length 46 [2023-02-15 18:49:34,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:49:34,043 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 106 transitions. [2023-02-15 18:49:34,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 26 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 18:49:34,044 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 106 transitions. [2023-02-15 18:49:34,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-02-15 18:49:34,044 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:49:34,044 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:49:34,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-15 18:49:34,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-02-15 18:49:34,245 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:49:34,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:49:34,245 INFO L85 PathProgramCache]: Analyzing trace with hash -2146874601, now seen corresponding path program 11 times [2023-02-15 18:49:34,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:49:34,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921705980] [2023-02-15 18:49:34,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:49:34,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:49:34,255 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 18:49:34,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2139121223] [2023-02-15 18:49:34,255 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 18:49:34,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:49:34,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:49:34,256 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 18:49:34,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-15 18:49:34,806 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2023-02-15 18:49:34,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 18:49:34,809 WARN L261 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 135 conjunts are in the unsatisfiable core [2023-02-15 18:49:34,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 18:49:34,837 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 18 treesize of output 16 [2023-02-15 18:49:34,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:34,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2023-02-15 18:49:34,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2023-02-15 18:49:34,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-02-15 18:49:34,878 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 15 treesize of output 14 [2023-02-15 18:49:34,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:34,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2023-02-15 18:49:34,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 38 [2023-02-15 18:49:34,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:34,954 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 20 treesize of output 24 [2023-02-15 18:49:34,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:34,962 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 21 treesize of output 25 [2023-02-15 18:49:35,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,054 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:35,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,055 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:35,063 INFO L321 Elim1Store]: treesize reduction 39, result has 26.4 percent of original size [2023-02-15 18:49:35,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 97 treesize of output 89 [2023-02-15 18:49:35,174 INFO L321 Elim1Store]: treesize reduction 33, result has 13.2 percent of original size [2023-02-15 18:49:35,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 131 treesize of output 107 [2023-02-15 18:49:35,179 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 0 case distinctions, treesize of input 42 treesize of output 45 [2023-02-15 18:49:35,200 INFO L321 Elim1Store]: treesize reduction 51, result has 8.9 percent of original size [2023-02-15 18:49:35,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 83 [2023-02-15 18:49:35,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 55 [2023-02-15 18:49:35,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 50 [2023-02-15 18:49:35,236 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 5 [2023-02-15 18:49:35,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,396 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:35,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,403 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:35,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,404 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:35,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,406 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:35,418 INFO L321 Elim1Store]: treesize reduction 55, result has 20.3 percent of original size [2023-02-15 18:49:35,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 11 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 141 treesize of output 145 [2023-02-15 18:49:35,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,643 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:35,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,648 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:35,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,654 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:35,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,656 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:35,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:35,658 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:35,673 INFO L321 Elim1Store]: treesize reduction 63, result has 14.9 percent of original size [2023-02-15 18:49:35,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 16 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 46 case distinctions, treesize of input 152 treesize of output 165 [2023-02-15 18:49:36,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,401 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:36,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,404 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:36,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,416 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:36,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,419 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:36,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,430 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:36,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,434 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:36,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,438 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:36,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:36,440 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:36,758 INFO L321 Elim1Store]: treesize reduction 1003, result has 16.1 percent of original size [2023-02-15 18:49:36,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 24 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 129 case distinctions, treesize of input 214 treesize of output 332 [2023-02-15 18:49:39,499 INFO L321 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2023-02-15 18:49:39,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 15 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 358 treesize of output 158 [2023-02-15 18:49:39,546 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 4 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 18:49:39,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 18:49:40,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:49:40,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921705980] [2023-02-15 18:49:40,898 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 18:49:40,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139121223] [2023-02-15 18:49:40,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139121223] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 18:49:40,898 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-15 18:49:40,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2023-02-15 18:49:40,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945204759] [2023-02-15 18:49:40,899 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-15 18:49:40,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-02-15 18:49:40,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:49:40,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-02-15 18:49:40,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=1959, Unknown=0, NotChecked=0, Total=2162 [2023-02-15 18:49:40,901 INFO L87 Difference]: Start difference. First operand 100 states and 106 transitions. Second operand has 32 states, 32 states have (on average 1.3125) internal successors, (42), 29 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-15 18:49:44,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:49:44,297 INFO L93 Difference]: Finished difference Result 132 states and 141 transitions. [2023-02-15 18:49:44,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-02-15 18:49:44,298 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 1.3125) internal successors, (42), 29 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2023-02-15 18:49:44,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:49:44,298 INFO L225 Difference]: With dead ends: 132 [2023-02-15 18:49:44,298 INFO L226 Difference]: Without dead ends: 128 [2023-02-15 18:49:44,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 14 SyntacticMatches, 6 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1158 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=388, Invalid=3518, Unknown=0, NotChecked=0, Total=3906 [2023-02-15 18:49:44,300 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 65 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-02-15 18:49:44,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 242 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1011 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-02-15 18:49:44,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-02-15 18:49:44,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 113. [2023-02-15 18:49:44,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 96 states have (on average 1.09375) internal successors, (105), 96 states have internal predecessors, (105), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-15 18:49:44,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 121 transitions. [2023-02-15 18:49:44,339 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 121 transitions. Word has length 46 [2023-02-15 18:49:44,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:49:44,339 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 121 transitions. [2023-02-15 18:49:44,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 1.3125) internal successors, (42), 29 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-15 18:49:44,339 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 121 transitions. [2023-02-15 18:49:44,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-02-15 18:49:44,339 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:49:44,339 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:49:44,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-02-15 18:49:44,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:49:44,540 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:49:44,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:49:44,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1508956071, now seen corresponding path program 12 times [2023-02-15 18:49:44,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:49:44,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084284055] [2023-02-15 18:49:44,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:49:44,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:49:44,549 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 18:49:44,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1053301688] [2023-02-15 18:49:44,549 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 18:49:44,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:49:44,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:49:44,551 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 18:49:44,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-15 18:49:44,859 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2023-02-15 18:49:44,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 18:49:44,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 16 conjunts are in the unsatisfiable core [2023-02-15 18:49:44,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 18:49:45,011 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 53 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 18:49:45,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 18:49:45,137 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 49 proven. 36 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 18:49:45,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:49:45,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084284055] [2023-02-15 18:49:45,137 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 18:49:45,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053301688] [2023-02-15 18:49:45,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053301688] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 18:49:45,137 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 18:49:45,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 24 [2023-02-15 18:49:45,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578300740] [2023-02-15 18:49:45,138 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 18:49:45,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-15 18:49:45,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:49:45,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-15 18:49:45,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2023-02-15 18:49:45,139 INFO L87 Difference]: Start difference. First operand 113 states and 121 transitions. Second operand has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-15 18:49:45,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:49:45,638 INFO L93 Difference]: Finished difference Result 181 states and 188 transitions. [2023-02-15 18:49:45,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-02-15 18:49:45,638 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2023-02-15 18:49:45,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:49:45,639 INFO L225 Difference]: With dead ends: 181 [2023-02-15 18:49:45,639 INFO L226 Difference]: Without dead ends: 161 [2023-02-15 18:49:45,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 64 SyntacticMatches, 8 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=482, Invalid=1498, Unknown=0, NotChecked=0, Total=1980 [2023-02-15 18:49:45,641 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 119 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 18:49:45,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 207 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 18:49:45,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-02-15 18:49:45,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 121. [2023-02-15 18:49:45,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 102 states have (on average 1.088235294117647) internal successors, (111), 102 states have internal predecessors, (111), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-02-15 18:49:45,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 129 transitions. [2023-02-15 18:49:45,700 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 129 transitions. Word has length 48 [2023-02-15 18:49:45,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:49:45,700 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 129 transitions. [2023-02-15 18:49:45,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-15 18:49:45,700 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 129 transitions. [2023-02-15 18:49:45,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-02-15 18:49:45,701 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:49:45,701 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:49:45,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-02-15 18:49:45,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-02-15 18:49:45,901 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:49:45,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:49:45,902 INFO L85 PathProgramCache]: Analyzing trace with hash -181297895, now seen corresponding path program 13 times [2023-02-15 18:49:45,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:49:45,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181726282] [2023-02-15 18:49:45,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:49:45,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:49:45,913 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 18:49:45,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [320568386] [2023-02-15 18:49:45,914 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-15 18:49:45,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:49:45,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:49:45,915 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 18:49:45,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-15 18:49:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 18:49:46,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 16 conjunts are in the unsatisfiable core [2023-02-15 18:49:46,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 18:49:46,167 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 40 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 18:49:46,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 18:49:46,288 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 36 proven. 49 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 18:49:46,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:49:46,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181726282] [2023-02-15 18:49:46,288 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 18:49:46,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320568386] [2023-02-15 18:49:46,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320568386] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 18:49:46,288 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 18:49:46,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 24 [2023-02-15 18:49:46,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894144507] [2023-02-15 18:49:46,288 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 18:49:46,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-15 18:49:46,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:49:46,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-15 18:49:46,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2023-02-15 18:49:46,290 INFO L87 Difference]: Start difference. First operand 121 states and 129 transitions. Second operand has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-15 18:49:46,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:49:46,579 INFO L93 Difference]: Finished difference Result 160 states and 165 transitions. [2023-02-15 18:49:46,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-02-15 18:49:46,579 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2023-02-15 18:49:46,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:49:46,581 INFO L225 Difference]: With dead ends: 160 [2023-02-15 18:49:46,581 INFO L226 Difference]: Without dead ends: 156 [2023-02-15 18:49:46,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 64 SyntacticMatches, 8 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=359, Invalid=1123, Unknown=0, NotChecked=0, Total=1482 [2023-02-15 18:49:46,583 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 98 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 18:49:46,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 168 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 18:49:46,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-02-15 18:49:46,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 123. [2023-02-15 18:49:46,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 104 states have (on average 1.0865384615384615) internal successors, (113), 104 states have internal predecessors, (113), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-02-15 18:49:46,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 131 transitions. [2023-02-15 18:49:46,632 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 131 transitions. Word has length 48 [2023-02-15 18:49:46,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:49:46,632 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 131 transitions. [2023-02-15 18:49:46,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-15 18:49:46,632 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 131 transitions. [2023-02-15 18:49:46,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-02-15 18:49:46,633 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:49:46,633 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:49:46,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-02-15 18:49:46,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:49:46,840 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:49:46,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:49:46,840 INFO L85 PathProgramCache]: Analyzing trace with hash 570125332, now seen corresponding path program 4 times [2023-02-15 18:49:46,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:49:46,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005363089] [2023-02-15 18:49:46,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:49:46,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:49:46,850 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 18:49:46,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [736695518] [2023-02-15 18:49:46,851 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 18:49:46,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:49:46,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:49:46,852 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 18:49:46,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-15 18:49:47,322 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 18:49:47,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 18:49:47,326 WARN L261 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 142 conjunts are in the unsatisfiable core [2023-02-15 18:49:47,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 18:49:47,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-15 18:49:47,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2023-02-15 18:49:47,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2023-02-15 18:49:47,376 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 15 treesize of output 14 [2023-02-15 18:49:47,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-02-15 18:49:47,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 69 [2023-02-15 18:49:47,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,566 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:47,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,567 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:47,575 INFO L321 Elim1Store]: treesize reduction 39, result has 26.4 percent of original size [2023-02-15 18:49:47,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 82 treesize of output 74 [2023-02-15 18:49:47,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,697 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:47,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,698 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:47,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,700 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:47,711 INFO L321 Elim1Store]: treesize reduction 47, result has 23.0 percent of original size [2023-02-15 18:49:47,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 117 treesize of output 115 [2023-02-15 18:49:47,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,885 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:47,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,887 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:47,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,890 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:47,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:47,891 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:47,906 INFO L321 Elim1Store]: treesize reduction 55, result has 20.3 percent of original size [2023-02-15 18:49:47,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 272 treesize of output 162 [2023-02-15 18:49:48,696 INFO L321 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2023-02-15 18:49:48,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 461 treesize of output 312 [2023-02-15 18:49:48,704 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 158 treesize of output 130 [2023-02-15 18:49:48,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 151 [2023-02-15 18:49:48,767 INFO L321 Elim1Store]: treesize reduction 116, result has 4.1 percent of original size [2023-02-15 18:49:48,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 315 treesize of output 330 [2023-02-15 18:49:48,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:48,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:48,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:48,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:48,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:48,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:48,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:48,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:48,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:48,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:48,901 INFO L321 Elim1Store]: treesize reduction 114, result has 28.7 percent of original size [2023-02-15 18:49:48,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 108 treesize of output 160 [2023-02-15 18:49:48,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:48,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:48,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:48,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:48,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:48,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:48,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:48,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:48,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:48,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:49,004 INFO L321 Elim1Store]: treesize reduction 231, result has 16.6 percent of original size [2023-02-15 18:49:49,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 229 treesize of output 284 [2023-02-15 18:49:49,112 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 17 treesize of output 11 [2023-02-15 18:49:50,962 INFO L321 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2023-02-15 18:49:50,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 938 treesize of output 759 [2023-02-15 18:49:50,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:50,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:50,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:50,982 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:50,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:50,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:50,985 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:50,985 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:50,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:50,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:50,989 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:50,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 10 disjoint index pairs (out of 36 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 602 treesize of output 593 [2023-02-15 18:49:51,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,202 INFO L321 Elim1Store]: treesize reduction 114, result has 28.7 percent of original size [2023-02-15 18:49:51,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 616 treesize of output 610 [2023-02-15 18:49:51,245 INFO L321 Elim1Store]: treesize reduction 172, result has 2.8 percent of original size [2023-02-15 18:49:51,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 806 treesize of output 797 [2023-02-15 18:49:51,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,268 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:51,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,271 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:51,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,273 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:51,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,274 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:51,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 525 treesize of output 516 [2023-02-15 18:49:51,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,299 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:51,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,307 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:51,307 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:51,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:51,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 512 treesize of output 503 [2023-02-15 18:49:51,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 77 [2023-02-15 18:49:51,366 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 56 treesize of output 28 [2023-02-15 18:49:51,732 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 18:49:51,844 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 18:49:51,897 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 18:49:52,020 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 18:49:52,063 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 18:49:52,188 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 18:49:52,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:52,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:52,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:52,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:52,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:52,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:52,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:52,245 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:52,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:52,247 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:52,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:52,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:52,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:52,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:52,251 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:49:52,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:52,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:52,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:52,345 INFO L321 Elim1Store]: treesize reduction 289, result has 15.7 percent of original size [2023-02-15 18:49:52,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 11 select indices, 11 select index equivalence classes, 19 disjoint index pairs (out of 55 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 306 treesize of output 359 [2023-02-15 18:49:54,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2023-02-15 18:49:54,373 INFO L321 Elim1Store]: treesize reduction 26, result has 23.5 percent of original size [2023-02-15 18:49:54,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 1519 treesize of output 1414 [2023-02-15 18:49:54,389 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 15 treesize of output 9 [2023-02-15 18:50:04,621 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-02-15 18:50:04,622 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 1625 treesize of output 1403 [2023-02-15 18:50:04,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:50:04,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:50:04,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:50:04,634 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:50:05,097 INFO L321 Elim1Store]: treesize reduction 14, result has 92.1 percent of original size [2023-02-15 18:50:05,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 10 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 1403 treesize of output 1421 [2023-02-15 18:50:05,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:50:05,133 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:50:05,305 INFO L321 Elim1Store]: treesize reduction 335, result has 7.5 percent of original size [2023-02-15 18:50:05,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 8 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 13 new quantified variables, introduced 17 case distinctions, treesize of input 1380 treesize of output 1774 [2023-02-15 18:50:15,883 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 5 [2023-02-15 18:50:16,451 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 5 [2023-02-15 18:50:16,507 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 5 [2023-02-15 18:50:16,625 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 5 [2023-02-15 18:50:16,703 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 5 [2023-02-15 18:50:16,774 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 5 [2023-02-15 18:50:16,854 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 5 [2023-02-15 18:50:16,982 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 5 [2023-02-15 18:50:17,054 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 5 [2023-02-15 18:50:17,441 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 5 [2023-02-15 18:50:17,472 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 5 [2023-02-15 18:50:17,537 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 5 [2023-02-15 18:50:17,611 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 5 [2023-02-15 18:50:17,682 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 5 [2023-02-15 18:50:17,740 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 5 [2023-02-15 18:50:17,789 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 5 [2023-02-15 18:50:17,895 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 5 [2023-02-15 18:50:17,955 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 5 [2023-02-15 18:50:18,035 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 5 [2023-02-15 18:50:18,241 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 5 [2023-02-15 18:50:18,291 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 5 [2023-02-15 18:50:18,880 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 5 [2023-02-15 18:50:18,934 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 5 [2023-02-15 18:50:18,990 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 5 [2023-02-15 18:50:19,021 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 5 [2023-02-15 18:50:19,111 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 5 [2023-02-15 18:50:19,161 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 5 [2023-02-15 18:50:19,222 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 5 [2023-02-15 18:50:19,273 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 18:50:19,308 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 18:50:19,403 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 18:50:19,474 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 18:50:19,522 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 18:50:19,597 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 18:50:19,659 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 18:50:19,722 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 5 [2023-02-15 18:50:19,794 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 5 [2023-02-15 18:50:19,870 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 5 [2023-02-15 18:50:19,928 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 5 [2023-02-15 18:50:20,004 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 5 [2023-02-15 18:50:20,057 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 5 [2023-02-15 18:50:20,139 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 5 [2023-02-15 18:50:20,173 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 5 [2023-02-15 18:50:20,215 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 5 [2023-02-15 18:50:20,260 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 5 [2023-02-15 18:50:20,290 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 5 [2023-02-15 18:50:20,383 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 5 [2023-02-15 18:50:20,460 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 5 [2023-02-15 18:50:20,512 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 5 [2023-02-15 18:50:20,540 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 5 [2023-02-15 18:50:20,574 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 5 [2023-02-15 18:50:20,619 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 7 treesize of output 5 [2023-02-15 18:50:20,659 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 5 [2023-02-15 18:50:20,738 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 5 [2023-02-15 18:50:20,784 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 5 [2023-02-15 18:50:20,879 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 5 [2023-02-15 18:50:22,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:50:22,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:50:22,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:50:22,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:50:22,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:50:22,644 INFO L173 IndexEqualityManager]: detected equality via solver