./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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-cav19/array_init_pair_symmetr2.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 4caa1f295436b297cae57f4102149db941e37f67b5d377cc8e9aa7b58bbf9350 --- Real Ultimate output --- This is Ultimate 0.2.2-?-2329fc7 [2023-02-13 22:42:33,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 22:42:33,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 22:42:33,686 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 22:42:33,686 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 22:42:33,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 22:42:33,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 22:42:33,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 22:42:33,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 22:42:33,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 22:42:33,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 22:42:33,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 22:42:33,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 22:42:33,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 22:42:33,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 22:42:33,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 22:42:33,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 22:42:33,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 22:42:33,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 22:42:33,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 22:42:33,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 22:42:33,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 22:42:33,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 22:42:33,715 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 22:42:33,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 22:42:33,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 22:42:33,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 22:42:33,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 22:42:33,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 22:42:33,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 22:42:33,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 22:42:33,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 22:42:33,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 22:42:33,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 22:42:33,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 22:42:33,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 22:42:33,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 22:42:33,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 22:42:33,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 22:42:33,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 22:42:33,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 22:42:33,729 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-13 22:42:33,750 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 22:42:33,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 22:42:33,751 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-13 22:42:33,751 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-13 22:42:33,752 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-13 22:42:33,752 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-13 22:42:33,753 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 22:42:33,753 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 22:42:33,753 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 22:42:33,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 22:42:33,754 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-13 22:42:33,754 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-13 22:42:33,754 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-13 22:42:33,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 22:42:33,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-13 22:42:33,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-13 22:42:33,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-13 22:42:33,755 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-13 22:42:33,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 22:42:33,755 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-13 22:42:33,755 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-13 22:42:33,755 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 22:42:33,756 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 22:42:33,756 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-13 22:42:33,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-13 22:42:33,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 22:42:33,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-13 22:42:33,756 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 22:42:33,756 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 22:42:33,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-13 22:42:33,757 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-13 22:42:33,757 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-13 22:42:33,757 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-13 22:42:33,757 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-13 22:42:33,757 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-13 22:42:33,758 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4caa1f295436b297cae57f4102149db941e37f67b5d377cc8e9aa7b58bbf9350 [2023-02-13 22:42:33,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 22:42:33,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 22:42:33,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 22:42:33,987 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 22:42:33,987 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 22:42:33,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c [2023-02-13 22:42:34,903 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-13 22:42:35,058 INFO L351 CDTParser]: Found 1 translation units. [2023-02-13 22:42:35,058 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c [2023-02-13 22:42:35,062 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/087ebbd80/99381787f0f843aeabc163a66d95f172/FLAG2166b32b9 [2023-02-13 22:42:35,071 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/087ebbd80/99381787f0f843aeabc163a66d95f172 [2023-02-13 22:42:35,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 22:42:35,074 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-13 22:42:35,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 22:42:35,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 22:42:35,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 22:42:35,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 10:42:35" (1/1) ... [2023-02-13 22:42:35,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55043f32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 10:42:35, skipping insertion in model container [2023-02-13 22:42:35,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 10:42:35" (1/1) ... [2023-02-13 22:42:35,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 22:42:35,093 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 22:42:35,179 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-cav19/array_init_pair_symmetr2.c[415,428] [2023-02-13 22:42:35,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 22:42:35,194 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 22:42:35,201 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-cav19/array_init_pair_symmetr2.c[415,428] [2023-02-13 22:42:35,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 22:42:35,216 INFO L208 MainTranslator]: Completed translation [2023-02-13 22:42:35,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 10:42:35 WrapperNode [2023-02-13 22:42:35,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 22:42:35,217 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 22:42:35,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 22:42:35,218 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 22:42:35,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 10:42:35" (1/1) ... [2023-02-13 22:42:35,227 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 10:42:35" (1/1) ... [2023-02-13 22:42:35,238 INFO L138 Inliner]: procedures = 15, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 77 [2023-02-13 22:42:35,238 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 22:42:35,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 22:42:35,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 22:42:35,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 22:42:35,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 10:42:35" (1/1) ... [2023-02-13 22:42:35,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 10:42:35" (1/1) ... [2023-02-13 22:42:35,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 10:42:35" (1/1) ... [2023-02-13 22:42:35,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 10:42:35" (1/1) ... [2023-02-13 22:42:35,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 10:42:35" (1/1) ... [2023-02-13 22:42:35,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 10:42:35" (1/1) ... [2023-02-13 22:42:35,252 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 10:42:35" (1/1) ... [2023-02-13 22:42:35,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 10:42:35" (1/1) ... [2023-02-13 22:42:35,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 22:42:35,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 22:42:35,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 22:42:35,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 22:42:35,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 10:42:35" (1/1) ... [2023-02-13 22:42:35,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-13 22:42:35,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-13 22:42:35,280 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) [2023-02-13 22:42:35,293 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 [2023-02-13 22:42:35,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-13 22:42:35,311 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-02-13 22:42:35,311 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-02-13 22:42:35,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-13 22:42:35,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-13 22:42:35,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-13 22:42:35,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 22:42:35,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 22:42:35,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-13 22:42:35,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-13 22:42:35,390 INFO L235 CfgBuilder]: Building ICFG [2023-02-13 22:42:35,392 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 22:42:35,517 INFO L276 CfgBuilder]: Performing block encoding [2023-02-13 22:42:35,521 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 22:42:35,521 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-02-13 22:42:35,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 10:42:35 BoogieIcfgContainer [2023-02-13 22:42:35,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 22:42:35,524 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 22:42:35,524 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 22:42:35,526 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 22:42:35,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 10:42:35" (1/3) ... [2023-02-13 22:42:35,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c42f24f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 10:42:35, skipping insertion in model container [2023-02-13 22:42:35,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 10:42:35" (2/3) ... [2023-02-13 22:42:35,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c42f24f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 10:42:35, skipping insertion in model container [2023-02-13 22:42:35,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 10:42:35" (3/3) ... [2023-02-13 22:42:35,528 INFO L112 eAbstractionObserver]: Analyzing ICFG array_init_pair_symmetr2.c [2023-02-13 22:42:35,538 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-13 22:42:35,538 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-13 22:42:35,584 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-13 22:42:35,588 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;@429744df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-13 22:42:35,588 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-13 22:42:35,591 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 20 states have (on average 1.45) internal successors, (29), 21 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-13 22:42:35,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-13 22:42:35,595 INFO L187 NwaCegarLoop]: Found error trace [2023-02-13 22:42:35,595 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-13 22:42:35,596 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-13 22:42:35,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 22:42:35,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1607472667, now seen corresponding path program 1 times [2023-02-13 22:42:35,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 22:42:35,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861332827] [2023-02-13 22:42:35,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 22:42:35,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 22:42:35,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:35,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 22:42:35,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 22:42:35,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861332827] [2023-02-13 22:42:35,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861332827] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 22:42:35,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 22:42:35,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-13 22:42:35,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474700811] [2023-02-13 22:42:35,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 22:42:35,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-13 22:42:35,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 22:42:35,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-13 22:42:35,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-13 22:42:35,741 INFO L87 Difference]: Start difference. First operand has 26 states, 20 states have (on average 1.45) internal successors, (29), 21 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 22:42:35,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 22:42:35,758 INFO L93 Difference]: Finished difference Result 50 states and 71 transitions. [2023-02-13 22:42:35,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-13 22:42:35,760 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-02-13 22:42:35,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-13 22:42:35,769 INFO L225 Difference]: With dead ends: 50 [2023-02-13 22:42:35,769 INFO L226 Difference]: Without dead ends: 22 [2023-02-13 22:42:35,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-13 22:42:35,775 INFO L413 NwaCegarLoop]: 30 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, 30 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 [2023-02-13 22:42:35,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-13 22:42:35,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-13 22:42:35,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-02-13 22:42:35,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-13 22:42:35,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2023-02-13 22:42:35,800 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 9 [2023-02-13 22:42:35,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-13 22:42:35,800 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2023-02-13 22:42:35,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 22:42:35,801 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2023-02-13 22:42:35,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-13 22:42:35,802 INFO L187 NwaCegarLoop]: Found error trace [2023-02-13 22:42:35,802 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-13 22:42:35,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-13 22:42:35,803 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-13 22:42:35,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 22:42:35,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1898116011, now seen corresponding path program 1 times [2023-02-13 22:42:35,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 22:42:35,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657501129] [2023-02-13 22:42:35,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 22:42:35,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 22:42:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:35,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 22:42:35,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 22:42:35,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657501129] [2023-02-13 22:42:35,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657501129] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 22:42:35,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 22:42:35,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-13 22:42:35,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946001054] [2023-02-13 22:42:35,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 22:42:35,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-13 22:42:35,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 22:42:35,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-13 22:42:35,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-13 22:42:35,948 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 22:42:35,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 22:42:35,991 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2023-02-13 22:42:35,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-13 22:42:35,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-02-13 22:42:35,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-13 22:42:35,993 INFO L225 Difference]: With dead ends: 40 [2023-02-13 22:42:35,993 INFO L226 Difference]: Without dead ends: 30 [2023-02-13 22:42:35,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-13 22:42:35,996 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 35 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-13 22:42:35,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 24 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-13 22:42:35,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-13 22:42:36,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2023-02-13 22:42:36,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-13 22:42:36,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2023-02-13 22:42:36,004 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 9 [2023-02-13 22:42:36,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-13 22:42:36,004 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2023-02-13 22:42:36,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 22:42:36,004 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2023-02-13 22:42:36,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-13 22:42:36,005 INFO L187 NwaCegarLoop]: Found error trace [2023-02-13 22:42:36,006 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-13 22:42:36,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-13 22:42:36,006 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-13 22:42:36,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 22:42:36,006 INFO L85 PathProgramCache]: Analyzing trace with hash 544146986, now seen corresponding path program 1 times [2023-02-13 22:42:36,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 22:42:36,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758219522] [2023-02-13 22:42:36,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 22:42:36,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 22:42:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:36,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-13 22:42:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:36,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-13 22:42:36,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:36,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-02-13 22:42:36,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:36,126 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-02-13 22:42:36,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 22:42:36,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758219522] [2023-02-13 22:42:36,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758219522] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-13 22:42:36,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26821272] [2023-02-13 22:42:36,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 22:42:36,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-13 22:42:36,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-13 22:42:36,130 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) [2023-02-13 22:42:36,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-13 22:42:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:36,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 22:42:36,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 22:42:36,335 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-02-13 22:42:36,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-13 22:42:36,396 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-02-13 22:42:36,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26821272] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-13 22:42:36,397 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-13 22:42:36,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 10 [2023-02-13 22:42:36,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523205162] [2023-02-13 22:42:36,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-13 22:42:36,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-13 22:42:36,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 22:42:36,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-13 22:42:36,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-02-13 22:42:36,404 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-02-13 22:42:36,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 22:42:36,558 INFO L93 Difference]: Finished difference Result 72 states and 92 transitions. [2023-02-13 22:42:36,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-13 22:42:36,558 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 29 [2023-02-13 22:42:36,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-13 22:42:36,561 INFO L225 Difference]: With dead ends: 72 [2023-02-13 22:42:36,561 INFO L226 Difference]: Without dead ends: 61 [2023-02-13 22:42:36,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2023-02-13 22:42:36,563 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 134 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-13 22:42:36,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 38 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-13 22:42:36,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-02-13 22:42:36,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 48. [2023-02-13 22:42:36,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 34 states have (on average 1.088235294117647) internal successors, (37), 34 states have internal predecessors, (37), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-02-13 22:42:36,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 61 transitions. [2023-02-13 22:42:36,581 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 61 transitions. Word has length 29 [2023-02-13 22:42:36,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-13 22:42:36,582 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 61 transitions. [2023-02-13 22:42:36,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-02-13 22:42:36,582 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2023-02-13 22:42:36,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-02-13 22:42:36,585 INFO L187 NwaCegarLoop]: Found error trace [2023-02-13 22:42:36,585 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-13 22:42:36,592 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-13 22:42:36,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-13 22:42:36,793 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-13 22:42:36,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 22:42:36,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1645511465, now seen corresponding path program 2 times [2023-02-13 22:42:36,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 22:42:36,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936519998] [2023-02-13 22:42:36,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 22:42:36,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 22:42:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:36,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-13 22:42:36,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:36,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-13 22:42:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:36,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-02-13 22:42:36,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:36,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-02-13 22:42:36,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:36,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-02-13 22:42:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:36,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-02-13 22:42:36,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:36,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-02-13 22:42:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:37,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-02-13 22:42:37,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:37,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-02-13 22:42:37,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:37,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-02-13 22:42:37,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:37,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-02-13 22:42:37,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:37,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-02-13 22:42:37,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:37,025 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-02-13 22:42:37,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 22:42:37,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936519998] [2023-02-13 22:42:37,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936519998] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-13 22:42:37,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918558265] [2023-02-13 22:42:37,027 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-13 22:42:37,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-13 22:42:37,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-13 22:42:37,028 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) [2023-02-13 22:42:37,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-13 22:42:37,121 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-13 22:42:37,122 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-13 22:42:37,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-13 22:42:37,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 22:42:37,303 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-02-13 22:42:37,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-13 22:42:37,408 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-02-13 22:42:37,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918558265] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-13 22:42:37,409 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-13 22:42:37,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 19 [2023-02-13 22:42:37,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082944373] [2023-02-13 22:42:37,412 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-13 22:42:37,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-02-13 22:42:37,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 22:42:37,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-02-13 22:42:37,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=195, Unknown=0, NotChecked=0, Total=342 [2023-02-13 22:42:37,419 INFO L87 Difference]: Start difference. First operand 48 states and 61 transitions. Second operand has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2023-02-13 22:42:37,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 22:42:37,673 INFO L93 Difference]: Finished difference Result 162 states and 206 transitions. [2023-02-13 22:42:37,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-13 22:42:37,673 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) Word has length 89 [2023-02-13 22:42:37,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-13 22:42:37,674 INFO L225 Difference]: With dead ends: 162 [2023-02-13 22:42:37,675 INFO L226 Difference]: Without dead ends: 145 [2023-02-13 22:42:37,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=222, Invalid=330, Unknown=0, NotChecked=0, Total=552 [2023-02-13 22:42:37,676 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 282 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-13 22:42:37,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 63 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-13 22:42:37,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2023-02-13 22:42:37,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 96. [2023-02-13 22:42:37,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 64 states have (on average 1.046875) internal successors, (67), 64 states have internal predecessors, (67), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-02-13 22:42:37,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 127 transitions. [2023-02-13 22:42:37,692 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 127 transitions. Word has length 89 [2023-02-13 22:42:37,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-13 22:42:37,693 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 127 transitions. [2023-02-13 22:42:37,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2023-02-13 22:42:37,693 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 127 transitions. [2023-02-13 22:42:37,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-02-13 22:42:37,703 INFO L187 NwaCegarLoop]: Found error trace [2023-02-13 22:42:37,703 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-13 22:42:37,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-13 22:42:37,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-02-13 22:42:37,908 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-13 22:42:37,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 22:42:37,909 INFO L85 PathProgramCache]: Analyzing trace with hash 548463335, now seen corresponding path program 3 times [2023-02-13 22:42:37,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 22:42:37,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101867361] [2023-02-13 22:42:37,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 22:42:37,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 22:42:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-13 22:42:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-13 22:42:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-02-13 22:42:38,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-02-13 22:42:38,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-02-13 22:42:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-02-13 22:42:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-02-13 22:42:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-02-13 22:42:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-02-13 22:42:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-02-13 22:42:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-02-13 22:42:38,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-02-13 22:42:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-02-13 22:42:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-02-13 22:42:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-02-13 22:42:38,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-02-13 22:42:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-02-13 22:42:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-02-13 22:42:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-02-13 22:42:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-02-13 22:42:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-02-13 22:42:38,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-02-13 22:42:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-02-13 22:42:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-02-13 22:42:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-02-13 22:42:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-02-13 22:42:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-02-13 22:42:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-02-13 22:42:38,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-02-13 22:42:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-02-13 22:42:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:38,357 INFO L134 CoverageAnalysis]: Checked inductivity of 2120 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 1840 trivial. 0 not checked. [2023-02-13 22:42:38,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 22:42:38,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101867361] [2023-02-13 22:42:38,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101867361] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-13 22:42:38,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268509887] [2023-02-13 22:42:38,357 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-13 22:42:38,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-13 22:42:38,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-13 22:42:38,359 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) [2023-02-13 22:42:38,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-13 22:42:38,795 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-13 22:42:38,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-13 22:42:38,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-13 22:42:38,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 22:42:39,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2120 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2023-02-13 22:42:39,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-13 22:42:39,398 INFO L134 CoverageAnalysis]: Checked inductivity of 2120 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2023-02-13 22:42:39,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268509887] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-13 22:42:39,399 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-13 22:42:39,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 14] total 37 [2023-02-13 22:42:39,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819926217] [2023-02-13 22:42:39,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-13 22:42:39,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-02-13 22:42:39,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 22:42:39,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-02-13 22:42:39,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=579, Invalid=753, Unknown=0, NotChecked=0, Total=1332 [2023-02-13 22:42:39,402 INFO L87 Difference]: Start difference. First operand 96 states and 127 transitions. Second operand has 37 states, 37 states have (on average 2.7567567567567566) internal successors, (102), 37 states have internal predecessors, (102), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2023-02-13 22:42:40,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 22:42:40,005 INFO L93 Difference]: Finished difference Result 342 states and 434 transitions. [2023-02-13 22:42:40,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-02-13 22:42:40,005 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.7567567567567566) internal successors, (102), 37 states have internal predecessors, (102), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) Word has length 209 [2023-02-13 22:42:40,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-13 22:42:40,007 INFO L225 Difference]: With dead ends: 342 [2023-02-13 22:42:40,008 INFO L226 Difference]: Without dead ends: 313 [2023-02-13 22:42:40,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=876, Invalid=1380, Unknown=0, NotChecked=0, Total=2256 [2023-02-13 22:42:40,009 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 634 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-13 22:42:40,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 131 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-13 22:42:40,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2023-02-13 22:42:40,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 192. [2023-02-13 22:42:40,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 124 states have (on average 1.0241935483870968) internal successors, (127), 124 states have internal predecessors, (127), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2023-02-13 22:42:40,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 259 transitions. [2023-02-13 22:42:40,028 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 259 transitions. Word has length 209 [2023-02-13 22:42:40,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-13 22:42:40,028 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 259 transitions. [2023-02-13 22:42:40,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.7567567567567566) internal successors, (102), 37 states have internal predecessors, (102), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2023-02-13 22:42:40,029 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 259 transitions. [2023-02-13 22:42:40,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2023-02-13 22:42:40,033 INFO L187 NwaCegarLoop]: Found error trace [2023-02-13 22:42:40,033 INFO L195 NwaCegarLoop]: trace histogram [66, 66, 66, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-13 22:42:40,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-13 22:42:40,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-13 22:42:40,240 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-13 22:42:40,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 22:42:40,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1915094685, now seen corresponding path program 4 times [2023-02-13 22:42:40,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 22:42:40,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309087774] [2023-02-13 22:42:40,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 22:42:40,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 22:42:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-13 22:42:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-13 22:42:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-02-13 22:42:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-02-13 22:42:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-02-13 22:42:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-02-13 22:42:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-02-13 22:42:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-02-13 22:42:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-02-13 22:42:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-02-13 22:42:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-02-13 22:42:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-02-13 22:42:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-02-13 22:42:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-02-13 22:42:41,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-02-13 22:42:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-02-13 22:42:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-02-13 22:42:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-02-13 22:42:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-02-13 22:42:41,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-02-13 22:42:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-02-13 22:42:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-02-13 22:42:41,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-02-13 22:42:41,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-02-13 22:42:41,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-02-13 22:42:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-02-13 22:42:41,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-02-13 22:42:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-02-13 22:42:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-02-13 22:42:41,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-02-13 22:42:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-02-13 22:42:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-02-13 22:42:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-02-13 22:42:41,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-02-13 22:42:41,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-02-13 22:42:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-02-13 22:42:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-02-13 22:42:41,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-02-13 22:42:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-02-13 22:42:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-02-13 22:42:41,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-02-13 22:42:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-02-13 22:42:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-02-13 22:42:41,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-02-13 22:42:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-02-13 22:42:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-02-13 22:42:41,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-02-13 22:42:41,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-02-13 22:42:41,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-02-13 22:42:41,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-02-13 22:42:41,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-02-13 22:42:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-02-13 22:42:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-02-13 22:42:41,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-02-13 22:42:41,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2023-02-13 22:42:41,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2023-02-13 22:42:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-02-13 22:42:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-02-13 22:42:41,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2023-02-13 22:42:41,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2023-02-13 22:42:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2023-02-13 22:42:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2023-02-13 22:42:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2023-02-13 22:42:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2023-02-13 22:42:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2023-02-13 22:42:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2023-02-13 22:42:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 22:42:41,427 INFO L134 CoverageAnalysis]: Checked inductivity of 10472 backedges. 0 proven. 1408 refuted. 0 times theorem prover too weak. 9064 trivial. 0 not checked. [2023-02-13 22:42:41,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 22:42:41,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309087774] [2023-02-13 22:42:41,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309087774] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-13 22:42:41,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711719373] [2023-02-13 22:42:41,428 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-13 22:42:41,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-13 22:42:41,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-13 22:42:41,429 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) [2023-02-13 22:42:41,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process