./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 7e1ff0e6 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-?-7e1ff0e [2023-02-14 22:01:43,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 22:01:43,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 22:01:43,312 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 22:01:43,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 22:01:43,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 22:01:43,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 22:01:43,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 22:01:43,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 22:01:43,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 22:01:43,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 22:01:43,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 22:01:43,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 22:01:43,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 22:01:43,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 22:01:43,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 22:01:43,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 22:01:43,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 22:01:43,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 22:01:43,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 22:01:43,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 22:01:43,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 22:01:43,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 22:01:43,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 22:01:43,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 22:01:43,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 22:01:43,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 22:01:43,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 22:01:43,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 22:01:43,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 22:01:43,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 22:01:43,370 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 22:01:43,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 22:01:43,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 22:01:43,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 22:01:43,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 22:01:43,373 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 22:01:43,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 22:01:43,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 22:01:43,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 22:01:43,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 22:01:43,376 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-14 22:01:43,398 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 22:01:43,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 22:01:43,399 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 22:01:43,399 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 22:01:43,399 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-14 22:01:43,400 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-14 22:01:43,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 22:01:43,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 22:01:43,401 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 22:01:43,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 22:01:43,402 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-14 22:01:43,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 22:01:43,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-14 22:01:43,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 22:01:43,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-14 22:01:43,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-14 22:01:43,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-14 22:01:43,403 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-14 22:01:43,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 22:01:43,403 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 22:01:43,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-14 22:01:43,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 22:01:43,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 22:01:43,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-14 22:01:43,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 22:01:43,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 22:01:43,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-14 22:01:43,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-14 22:01:43,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 22:01:43,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-14 22:01:43,405 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-14 22:01:43,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-14 22:01:43,406 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-14 22:01:43,406 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-14 22:01:43,406 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-14 22:01:43,406 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4caa1f295436b297cae57f4102149db941e37f67b5d377cc8e9aa7b58bbf9350 [2023-02-14 22:01:43,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 22:01:43,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 22:01:43,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 22:01:43,724 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 22:01:43,724 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 22:01:43,725 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c [2023-02-14 22:01:44,934 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 22:01:45,104 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 22:01:45,105 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c [2023-02-14 22:01:45,113 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4759cd6a/ac1647410b814069a449b3655b67b35b/FLAGcb2fdd7df [2023-02-14 22:01:45,130 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4759cd6a/ac1647410b814069a449b3655b67b35b [2023-02-14 22:01:45,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 22:01:45,134 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 22:01:45,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 22:01:45,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 22:01:45,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 22:01:45,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 10:01:45" (1/1) ... [2023-02-14 22:01:45,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18d3f016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:01:45, skipping insertion in model container [2023-02-14 22:01:45,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 10:01:45" (1/1) ... [2023-02-14 22:01:45,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 22:01:45,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 22:01:45,251 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] [2023-02-14 22:01:45,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 22:01:45,271 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 22:01:45,278 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] [2023-02-14 22:01:45,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 22:01:45,292 INFO L208 MainTranslator]: Completed translation [2023-02-14 22:01:45,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:01:45 WrapperNode [2023-02-14 22:01:45,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 22:01:45,294 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 22:01:45,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 22:01:45,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 22:01:45,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:01:45" (1/1) ... [2023-02-14 22:01:45,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:01:45" (1/1) ... [2023-02-14 22:01:45,319 INFO L138 Inliner]: procedures = 15, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 77 [2023-02-14 22:01:45,319 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 22:01:45,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 22:01:45,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 22:01:45,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 22:01:45,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:01:45" (1/1) ... [2023-02-14 22:01:45,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:01:45" (1/1) ... [2023-02-14 22:01:45,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:01:45" (1/1) ... [2023-02-14 22:01:45,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:01:45" (1/1) ... [2023-02-14 22:01:45,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:01:45" (1/1) ... [2023-02-14 22:01:45,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:01:45" (1/1) ... [2023-02-14 22:01:45,339 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:01:45" (1/1) ... [2023-02-14 22:01:45,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:01:45" (1/1) ... [2023-02-14 22:01:45,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 22:01:45,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 22:01:45,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 22:01:45,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 22:01:45,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:01:45" (1/1) ... [2023-02-14 22:01:45,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 22:01:45,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 22:01:45,367 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) [2023-02-14 22:01:45,383 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 [2023-02-14 22:01:45,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-14 22:01:45,396 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-02-14 22:01:45,397 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-02-14 22:01:45,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-14 22:01:45,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-14 22:01:45,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-14 22:01:45,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 22:01:45,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 22:01:45,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-14 22:01:45,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-14 22:01:45,471 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 22:01:45,473 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 22:01:45,645 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 22:01:45,651 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 22:01:45,651 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-02-14 22:01:45,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 10:01:45 BoogieIcfgContainer [2023-02-14 22:01:45,653 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 22:01:45,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-14 22:01:45,664 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-14 22:01:45,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-14 22:01:45,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 10:01:45" (1/3) ... [2023-02-14 22:01:45,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473fb74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 10:01:45, skipping insertion in model container [2023-02-14 22:01:45,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:01:45" (2/3) ... [2023-02-14 22:01:45,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473fb74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 10:01:45, skipping insertion in model container [2023-02-14 22:01:45,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 10:01:45" (3/3) ... [2023-02-14 22:01:45,709 INFO L112 eAbstractionObserver]: Analyzing ICFG array_init_pair_symmetr2.c [2023-02-14 22:01:45,733 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-14 22:01:45,733 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-14 22:01:45,790 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-14 22:01:45,798 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;@4c6f41ae, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-14 22:01:45,799 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-14 22:01:45,802 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) [2023-02-14 22:01:45,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-14 22:01:45,809 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 22:01:45,809 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 22:01:45,810 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 22:01:45,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 22:01:45,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1607472667, now seen corresponding path program 1 times [2023-02-14 22:01:45,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 22:01:45,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484138701] [2023-02-14 22:01:45,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 22:01:45,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 22:01:45,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:46,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 22:01:46,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 22:01:46,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484138701] [2023-02-14 22:01:46,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484138701] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 22:01:46,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 22:01:46,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 22:01:46,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569615154] [2023-02-14 22:01:46,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 22:01:46,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-14 22:01:46,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 22:01:46,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-14 22:01:46,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-14 22:01:46,133 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) [2023-02-14 22:01:46,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 22:01:46,152 INFO L93 Difference]: Finished difference Result 50 states and 71 transitions. [2023-02-14 22:01:46,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-14 22:01:46,155 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 [2023-02-14 22:01:46,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 22:01:46,160 INFO L225 Difference]: With dead ends: 50 [2023-02-14 22:01:46,161 INFO L226 Difference]: Without dead ends: 22 [2023-02-14 22:01:46,163 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 [2023-02-14 22:01:46,169 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 [2023-02-14 22:01:46,170 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] [2023-02-14 22:01:46,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-14 22:01:46,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-02-14 22:01:46,195 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) [2023-02-14 22:01:46,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2023-02-14 22:01:46,198 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 9 [2023-02-14 22:01:46,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 22:01:46,199 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2023-02-14 22:01:46,199 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) [2023-02-14 22:01:46,200 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2023-02-14 22:01:46,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-14 22:01:46,201 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 22:01:46,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 22:01:46,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-14 22:01:46,202 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 22:01:46,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 22:01:46,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1898116011, now seen corresponding path program 1 times [2023-02-14 22:01:46,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 22:01:46,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138967997] [2023-02-14 22:01:46,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 22:01:46,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 22:01:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:46,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 22:01:46,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 22:01:46,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138967997] [2023-02-14 22:01:46,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138967997] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 22:01:46,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 22:01:46,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 22:01:46,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482861757] [2023-02-14 22:01:46,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 22:01:46,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 22:01:46,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 22:01:46,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 22:01:46,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-14 22:01:46,371 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) [2023-02-14 22:01:46,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 22:01:46,436 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2023-02-14 22:01:46,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 22:01:46,437 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 [2023-02-14 22:01:46,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 22:01:46,438 INFO L225 Difference]: With dead ends: 40 [2023-02-14 22:01:46,438 INFO L226 Difference]: Without dead ends: 30 [2023-02-14 22:01:46,439 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 [2023-02-14 22:01:46,440 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, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 22:01:46,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 24 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 22:01:46,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-14 22:01:46,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2023-02-14 22:01:46,448 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) [2023-02-14 22:01:46,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2023-02-14 22:01:46,449 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 9 [2023-02-14 22:01:46,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 22:01:46,449 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2023-02-14 22:01:46,450 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) [2023-02-14 22:01:46,450 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2023-02-14 22:01:46,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-14 22:01:46,450 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 22:01:46,451 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] [2023-02-14 22:01:46,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-14 22:01:46,451 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 22:01:46,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 22:01:46,452 INFO L85 PathProgramCache]: Analyzing trace with hash 544146986, now seen corresponding path program 1 times [2023-02-14 22:01:46,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 22:01:46,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121423188] [2023-02-14 22:01:46,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 22:01:46,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 22:01:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:46,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-14 22:01:46,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:46,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-14 22:01:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:46,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-02-14 22:01:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:46,662 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-02-14 22:01:46,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 22:01:46,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121423188] [2023-02-14 22:01:46,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121423188] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 22:01:46,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972401692] [2023-02-14 22:01:46,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 22:01:46,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 22:01:46,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 22:01:46,683 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) [2023-02-14 22:01:46,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-14 22:01:46,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:46,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 22:01:46,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 22:01:46,914 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-02-14 22:01:46,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 22:01:46,984 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-02-14 22:01:46,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972401692] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 22:01:46,985 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 22:01:46,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 10 [2023-02-14 22:01:46,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907593721] [2023-02-14 22:01:46,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 22:01:46,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-14 22:01:46,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 22:01:46,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-14 22:01:46,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-02-14 22:01:46,993 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) [2023-02-14 22:01:47,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 22:01:47,143 INFO L93 Difference]: Finished difference Result 72 states and 92 transitions. [2023-02-14 22:01:47,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-14 22:01:47,144 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 [2023-02-14 22:01:47,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 22:01:47,145 INFO L225 Difference]: With dead ends: 72 [2023-02-14 22:01:47,145 INFO L226 Difference]: Without dead ends: 61 [2023-02-14 22:01:47,146 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 [2023-02-14 22:01:47,147 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 [2023-02-14 22:01:47,147 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] [2023-02-14 22:01:47,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-02-14 22:01:47,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 48. [2023-02-14 22:01:47,163 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) [2023-02-14 22:01:47,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 61 transitions. [2023-02-14 22:01:47,165 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 61 transitions. Word has length 29 [2023-02-14 22:01:47,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 22:01:47,165 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 61 transitions. [2023-02-14 22:01:47,165 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) [2023-02-14 22:01:47,165 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2023-02-14 22:01:47,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-02-14 22:01:47,167 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 22:01:47,167 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] [2023-02-14 22:01:47,175 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-14 22:01:47,374 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 [2023-02-14 22:01:47,374 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 22:01:47,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 22:01:47,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1645511465, now seen corresponding path program 2 times [2023-02-14 22:01:47,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 22:01:47,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798052326] [2023-02-14 22:01:47,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 22:01:47,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 22:01:47,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:47,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-14 22:01:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:47,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-14 22:01:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:47,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-02-14 22:01:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:47,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-02-14 22:01:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:47,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-02-14 22:01:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:47,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-02-14 22:01:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:47,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-02-14 22:01:47,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:47,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-02-14 22:01:47,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:47,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-02-14 22:01:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:47,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-02-14 22:01:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:47,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-02-14 22:01:47,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:47,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-02-14 22:01:47,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:47,632 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-02-14 22:01:47,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 22:01:47,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798052326] [2023-02-14 22:01:47,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798052326] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 22:01:47,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696378904] [2023-02-14 22:01:47,635 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-14 22:01:47,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 22:01:47,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 22:01:47,636 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) [2023-02-14 22:01:47,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-14 22:01:47,750 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-14 22:01:47,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 22:01:47,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-14 22:01:47,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 22:01:47,905 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-02-14 22:01:47,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 22:01:48,028 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-02-14 22:01:48,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696378904] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 22:01:48,029 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 22:01:48,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 19 [2023-02-14 22:01:48,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145206796] [2023-02-14 22:01:48,030 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 22:01:48,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-02-14 22:01:48,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 22:01:48,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-02-14 22:01:48,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=195, Unknown=0, NotChecked=0, Total=342 [2023-02-14 22:01:48,032 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) [2023-02-14 22:01:48,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 22:01:48,306 INFO L93 Difference]: Finished difference Result 162 states and 206 transitions. [2023-02-14 22:01:48,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-14 22:01:48,307 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 [2023-02-14 22:01:48,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 22:01:48,309 INFO L225 Difference]: With dead ends: 162 [2023-02-14 22:01:48,309 INFO L226 Difference]: Without dead ends: 145 [2023-02-14 22:01:48,309 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 [2023-02-14 22:01:48,310 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 282 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2023-02-14 22:01:48,310 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] [2023-02-14 22:01:48,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2023-02-14 22:01:48,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 96. [2023-02-14 22:01:48,325 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) [2023-02-14 22:01:48,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 127 transitions. [2023-02-14 22:01:48,327 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 127 transitions. Word has length 89 [2023-02-14 22:01:48,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 22:01:48,328 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 127 transitions. [2023-02-14 22:01:48,328 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) [2023-02-14 22:01:48,328 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 127 transitions. [2023-02-14 22:01:48,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-02-14 22:01:48,332 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 22:01:48,332 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] [2023-02-14 22:01:48,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-14 22:01:48,537 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 [2023-02-14 22:01:48,537 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 22:01:48,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 22:01:48,538 INFO L85 PathProgramCache]: Analyzing trace with hash 548463335, now seen corresponding path program 3 times [2023-02-14 22:01:48,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 22:01:48,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010882071] [2023-02-14 22:01:48,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 22:01:48,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 22:01:48,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:48,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-14 22:01:48,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:48,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-14 22:01:48,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:48,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-02-14 22:01:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-02-14 22:01:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-02-14 22:01:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-02-14 22:01:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-02-14 22:01:49,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-02-14 22:01:49,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-02-14 22:01:49,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-02-14 22:01:49,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-02-14 22:01:49,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-02-14 22:01:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-02-14 22:01:49,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-02-14 22:01:49,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-02-14 22:01:49,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-02-14 22:01:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-02-14 22:01:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-02-14 22:01:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-02-14 22:01:49,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-02-14 22:01:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-02-14 22:01:49,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-02-14 22:01:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-02-14 22:01:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-02-14 22:01:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-02-14 22:01:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-02-14 22:01:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-02-14 22:01:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-02-14 22:01:49,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-02-14 22:01:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-02-14 22:01:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:49,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2120 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 1840 trivial. 0 not checked. [2023-02-14 22:01:49,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 22:01:49,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010882071] [2023-02-14 22:01:49,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010882071] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 22:01:49,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491092319] [2023-02-14 22:01:49,089 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-14 22:01:49,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 22:01:49,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 22:01:49,090 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) [2023-02-14 22:01:49,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-14 22:01:49,728 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-14 22:01:49,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 22:01:49,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-14 22:01:49,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 22:01:50,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2120 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2023-02-14 22:01:50,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 22:01:50,442 INFO L134 CoverageAnalysis]: Checked inductivity of 2120 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2023-02-14 22:01:50,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491092319] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 22:01:50,442 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 22:01:50,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 14] total 37 [2023-02-14 22:01:50,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063476922] [2023-02-14 22:01:50,443 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 22:01:50,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-02-14 22:01:50,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 22:01:50,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-02-14 22:01:50,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=579, Invalid=753, Unknown=0, NotChecked=0, Total=1332 [2023-02-14 22:01:50,446 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) [2023-02-14 22:01:51,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 22:01:51,121 INFO L93 Difference]: Finished difference Result 342 states and 434 transitions. [2023-02-14 22:01:51,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-02-14 22:01:51,121 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 [2023-02-14 22:01:51,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 22:01:51,130 INFO L225 Difference]: With dead ends: 342 [2023-02-14 22:01:51,131 INFO L226 Difference]: Without dead ends: 313 [2023-02-14 22:01:51,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=876, Invalid=1380, Unknown=0, NotChecked=0, Total=2256 [2023-02-14 22:01:51,133 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 [2023-02-14 22:01:51,134 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] [2023-02-14 22:01:51,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2023-02-14 22:01:51,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 192. [2023-02-14 22:01:51,184 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) [2023-02-14 22:01:51,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 259 transitions. [2023-02-14 22:01:51,187 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 259 transitions. Word has length 209 [2023-02-14 22:01:51,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 22:01:51,187 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 259 transitions. [2023-02-14 22:01:51,188 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) [2023-02-14 22:01:51,188 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 259 transitions. [2023-02-14 22:01:51,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2023-02-14 22:01:51,206 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 22:01:51,206 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] [2023-02-14 22:01:51,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-14 22:01:51,414 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 [2023-02-14 22:01:51,414 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 22:01:51,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 22:01:51,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1915094685, now seen corresponding path program 4 times [2023-02-14 22:01:51,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 22:01:51,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847958166] [2023-02-14 22:01:51,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 22:01:51,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 22:01:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-14 22:01:52,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-14 22:01:52,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-02-14 22:01:52,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-02-14 22:01:52,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-02-14 22:01:52,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-02-14 22:01:52,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-02-14 22:01:52,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-02-14 22:01:52,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-02-14 22:01:52,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-02-14 22:01:52,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-02-14 22:01:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-02-14 22:01:52,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-02-14 22:01:52,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-02-14 22:01:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-02-14 22:01:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-02-14 22:01:52,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-02-14 22:01:52,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-02-14 22:01:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-02-14 22:01:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-02-14 22:01:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-02-14 22:01:52,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-02-14 22:01:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-02-14 22:01:52,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-02-14 22:01:52,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-02-14 22:01:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-02-14 22:01:52,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-02-14 22:01:52,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-02-14 22:01:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-02-14 22:01:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-02-14 22:01:52,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-02-14 22:01:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-02-14 22:01:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-02-14 22:01:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-02-14 22:01:52,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-02-14 22:01:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-02-14 22:01:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-02-14 22:01:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-02-14 22:01:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-02-14 22:01:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-02-14 22:01:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-02-14 22:01:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-02-14 22:01:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-02-14 22:01:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-02-14 22:01:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-02-14 22:01:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-02-14 22:01:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-02-14 22:01:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-02-14 22:01:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-02-14 22:01:52,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-02-14 22:01:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-02-14 22:01:52,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-02-14 22:01:52,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-02-14 22:01:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-02-14 22:01:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2023-02-14 22:01:52,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2023-02-14 22:01:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-02-14 22:01:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-02-14 22:01:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2023-02-14 22:01:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2023-02-14 22:01:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2023-02-14 22:01:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2023-02-14 22:01:52,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2023-02-14 22:01:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2023-02-14 22:01:52,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2023-02-14 22:01:52,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2023-02-14 22:01:52,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 22:01:52,783 INFO L134 CoverageAnalysis]: Checked inductivity of 10472 backedges. 0 proven. 1408 refuted. 0 times theorem prover too weak. 9064 trivial. 0 not checked. [2023-02-14 22:01:52,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 22:01:52,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847958166] [2023-02-14 22:01:52,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847958166] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 22:01:52,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292199338] [2023-02-14 22:01:52,784 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-14 22:01:52,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 22:01:52,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 22:01:52,797 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) [2023-02-14 22:01:52,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process