./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 03d5d1a576959110e79c00ca2825754bce7439905d85699b470a90adbbee10ad --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 00:31:26,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 00:31:26,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 00:31:26,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 00:31:26,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 00:31:26,222 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 00:31:26,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 00:31:26,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 00:31:26,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 00:31:26,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 00:31:26,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 00:31:26,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 00:31:26,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 00:31:26,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 00:31:26,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 00:31:26,255 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 00:31:26,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 00:31:26,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 00:31:26,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 00:31:26,265 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 00:31:26,267 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 00:31:26,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 00:31:26,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 00:31:26,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 00:31:26,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 00:31:26,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 00:31:26,277 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 00:31:26,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 00:31:26,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 00:31:26,279 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 00:31:26,280 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 00:31:26,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 00:31:26,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 00:31:26,282 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 00:31:26,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 00:31:26,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 00:31:26,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 00:31:26,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 00:31:26,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 00:31:26,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 00:31:26,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 00:31:26,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 00:31:26,291 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 00:31:26,322 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 00:31:26,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 00:31:26,323 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 00:31:26,323 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 00:31:26,324 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 00:31:26,324 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 00:31:26,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 00:31:26,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 00:31:26,325 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 00:31:26,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 00:31:26,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 00:31:26,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 00:31:26,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 00:31:26,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 00:31:26,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 00:31:26,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 00:31:26,327 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 00:31:26,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 00:31:26,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 00:31:26,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 00:31:26,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 00:31:26,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:31:26,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 00:31:26,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 00:31:26,330 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 00:31:26,330 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 00:31:26,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 00:31:26,330 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 00:31:26,330 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 00:31:26,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 00:31:26,331 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03d5d1a576959110e79c00ca2825754bce7439905d85699b470a90adbbee10ad [2022-07-23 00:31:26,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 00:31:26,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 00:31:26,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 00:31:26,606 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 00:31:26,606 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 00:31:26,607 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i [2022-07-23 00:31:26,659 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/444a7ee72/39b12b9ea141452396757148db724b97/FLAGd5b4e7b6c [2022-07-23 00:31:27,317 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 00:31:27,318 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i [2022-07-23 00:31:27,354 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/444a7ee72/39b12b9ea141452396757148db724b97/FLAGd5b4e7b6c [2022-07-23 00:31:27,487 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/444a7ee72/39b12b9ea141452396757148db724b97 [2022-07-23 00:31:27,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 00:31:27,492 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 00:31:27,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 00:31:27,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 00:31:27,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 00:31:27,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:31:27" (1/1) ... [2022-07-23 00:31:27,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7deb4838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:31:27, skipping insertion in model container [2022-07-23 00:31:27,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:31:27" (1/1) ... [2022-07-23 00:31:27,507 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 00:31:27,591 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:31:28,459 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i[164960,164973] [2022-07-23 00:31:28,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:31:28,512 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 00:31:28,822 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i[164960,164973] [2022-07-23 00:31:28,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:31:28,900 INFO L208 MainTranslator]: Completed translation [2022-07-23 00:31:28,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:31:28 WrapperNode [2022-07-23 00:31:28,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 00:31:28,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 00:31:28,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 00:31:28,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 00:31:28,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:31:28" (1/1) ... [2022-07-23 00:31:28,960 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:31:28" (1/1) ... [2022-07-23 00:31:29,031 INFO L137 Inliner]: procedures = 151, calls = 761, calls flagged for inlining = 67, calls inlined = 53, statements flattened = 1701 [2022-07-23 00:31:29,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 00:31:29,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 00:31:29,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 00:31:29,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 00:31:29,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:31:28" (1/1) ... [2022-07-23 00:31:29,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:31:28" (1/1) ... [2022-07-23 00:31:29,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:31:28" (1/1) ... [2022-07-23 00:31:29,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:31:28" (1/1) ... [2022-07-23 00:31:29,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:31:28" (1/1) ... [2022-07-23 00:31:29,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:31:28" (1/1) ... [2022-07-23 00:31:29,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:31:28" (1/1) ... [2022-07-23 00:31:29,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 00:31:29,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 00:31:29,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 00:31:29,207 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 00:31:29,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:31:28" (1/1) ... [2022-07-23 00:31:29,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:31:29,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:31:29,240 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) [2022-07-23 00:31:29,255 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 [2022-07-23 00:31:29,286 INFO L130 BoogieDeclarations]: Found specification of procedure dlm_lock_sync [2022-07-23 00:31:29,286 INFO L138 BoogieDeclarations]: Found implementation of procedure dlm_lock_sync [2022-07-23 00:31:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure lockres_free [2022-07-23 00:31:29,287 INFO L138 BoogieDeclarations]: Found implementation of procedure lockres_free [2022-07-23 00:31:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-23 00:31:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 00:31:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 00:31:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 00:31:29,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 00:31:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 00:31:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 00:31:29,288 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 00:31:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure dlm_release_lockspace [2022-07-23 00:31:29,288 INFO L138 BoogieDeclarations]: Found implementation of procedure dlm_release_lockspace [2022-07-23 00:31:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure lock_comm [2022-07-23 00:31:29,289 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_comm [2022-07-23 00:31:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 00:31:29,289 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 00:31:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 00:31:29,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 00:31:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-23 00:31:29,290 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-23 00:31:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-07-23 00:31:29,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-07-23 00:31:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-23 00:31:29,290 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-23 00:31:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-07-23 00:31:29,290 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-07-23 00:31:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 00:31:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 00:31:29,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 00:31:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-23 00:31:29,291 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-23 00:31:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure md_wakeup_thread [2022-07-23 00:31:29,292 INFO L138 BoogieDeclarations]: Found implementation of procedure md_wakeup_thread [2022-07-23 00:31:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-23 00:31:29,292 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-23 00:31:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_copy_from_slot [2022-07-23 00:31:29,292 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_copy_from_slot [2022-07-23 00:31:29,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-23 00:31:29,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-23 00:31:29,293 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 00:31:29,293 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 00:31:29,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 00:31:29,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-23 00:31:29,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-23 00:31:29,294 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-07-23 00:31:29,294 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-07-23 00:31:29,294 INFO L130 BoogieDeclarations]: Found specification of procedure md_register_thread [2022-07-23 00:31:29,294 INFO L138 BoogieDeclarations]: Found implementation of procedure md_register_thread [2022-07-23 00:31:29,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 00:31:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure md_unregister_thread [2022-07-23 00:31:29,295 INFO L138 BoogieDeclarations]: Found implementation of procedure md_unregister_thread [2022-07-23 00:31:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-07-23 00:31:29,295 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-07-23 00:31:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 00:31:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 00:31:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure resync_send [2022-07-23 00:31:29,297 INFO L138 BoogieDeclarations]: Found implementation of procedure resync_send [2022-07-23 00:31:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-23 00:31:29,297 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-23 00:31:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure lockres_init [2022-07-23 00:31:29,298 INFO L138 BoogieDeclarations]: Found implementation of procedure lockres_init [2022-07-23 00:31:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 00:31:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_comm [2022-07-23 00:31:29,298 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_comm [2022-07-23 00:31:29,299 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-23 00:31:29,299 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-23 00:31:29,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 00:31:29,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 00:31:29,299 INFO L130 BoogieDeclarations]: Found specification of procedure resync_info_update [2022-07-23 00:31:29,299 INFO L138 BoogieDeclarations]: Found implementation of procedure resync_info_update [2022-07-23 00:31:29,300 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-23 00:31:29,300 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-23 00:31:29,300 INFO L130 BoogieDeclarations]: Found specification of procedure __sendmsg [2022-07-23 00:31:29,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __sendmsg [2022-07-23 00:31:29,301 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-23 00:31:29,301 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-23 00:31:29,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 00:31:29,301 INFO L130 BoogieDeclarations]: Found specification of procedure pretty_uuid [2022-07-23 00:31:29,301 INFO L138 BoogieDeclarations]: Found implementation of procedure pretty_uuid [2022-07-23 00:31:29,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-23 00:31:29,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 00:31:29,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 00:31:29,302 INFO L130 BoogieDeclarations]: Found specification of procedure sendmsg [2022-07-23 00:31:29,302 INFO L138 BoogieDeclarations]: Found implementation of procedure sendmsg [2022-07-23 00:31:29,302 INFO L130 BoogieDeclarations]: Found specification of procedure dlm_unlock_sync [2022-07-23 00:31:29,302 INFO L138 BoogieDeclarations]: Found implementation of procedure dlm_unlock_sync [2022-07-23 00:31:29,743 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 00:31:29,746 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 00:31:29,918 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 00:31:30,743 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 00:31:30,752 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 00:31:30,753 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 00:31:30,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:31:30 BoogieIcfgContainer [2022-07-23 00:31:30,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 00:31:30,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 00:31:30,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 00:31:30,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 00:31:30,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 12:31:27" (1/3) ... [2022-07-23 00:31:30,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb14937 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:31:30, skipping insertion in model container [2022-07-23 00:31:30,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:31:28" (2/3) ... [2022-07-23 00:31:30,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb14937 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:31:30, skipping insertion in model container [2022-07-23 00:31:30,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:31:30" (3/3) ... [2022-07-23 00:31:30,762 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i [2022-07-23 00:31:30,776 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 00:31:30,776 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 00:31:30,824 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 00:31:30,829 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@46563308, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7b75dc33 [2022-07-23 00:31:30,830 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 00:31:30,840 INFO L276 IsEmpty]: Start isEmpty. Operand has 564 states, 395 states have (on average 1.3113924050632912) internal successors, (518), 406 states have internal predecessors, (518), 132 states have call successors, (132), 36 states have call predecessors, (132), 35 states have return successors, (128), 127 states have call predecessors, (128), 128 states have call successors, (128) [2022-07-23 00:31:30,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-23 00:31:30,863 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:31:30,864 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:31:30,864 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:31:30,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:31:30,868 INFO L85 PathProgramCache]: Analyzing trace with hash 108953653, now seen corresponding path program 1 times [2022-07-23 00:31:30,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:31:30,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440923704] [2022-07-23 00:31:30,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:31:30,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:31:31,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:31:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:31:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:31:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:31,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 00:31:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 00:31:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:31,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-23 00:31:31,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-23 00:31:31,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-23 00:31:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:31,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-23 00:31:31,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:31,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-23 00:31:31,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-23 00:31:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-23 00:31:31,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-23 00:31:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-23 00:31:31,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:31,757 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2022-07-23 00:31:31,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:31:31,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440923704] [2022-07-23 00:31:31,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440923704] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:31:31,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:31:31,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 00:31:31,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586358740] [2022-07-23 00:31:31,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:31:31,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 00:31:31,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:31:31,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 00:31:31,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 00:31:31,796 INFO L87 Difference]: Start difference. First operand has 564 states, 395 states have (on average 1.3113924050632912) internal successors, (518), 406 states have internal predecessors, (518), 132 states have call successors, (132), 36 states have call predecessors, (132), 35 states have return successors, (128), 127 states have call predecessors, (128), 128 states have call successors, (128) Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-23 00:31:32,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:31:32,499 INFO L93 Difference]: Finished difference Result 1151 states and 1655 transitions. [2022-07-23 00:31:32,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 00:31:32,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 184 [2022-07-23 00:31:32,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:31:32,526 INFO L225 Difference]: With dead ends: 1151 [2022-07-23 00:31:32,527 INFO L226 Difference]: Without dead ends: 581 [2022-07-23 00:31:32,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:31:32,535 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 250 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 418 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 418 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-23 00:31:32,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 1194 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [418 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-23 00:31:32,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2022-07-23 00:31:32,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 553. [2022-07-23 00:31:32,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 390 states have (on average 1.2974358974358975) internal successors, (506), 395 states have internal predecessors, (506), 128 states have call successors, (128), 35 states have call predecessors, (128), 34 states have return successors, (126), 125 states have call predecessors, (126), 126 states have call successors, (126) [2022-07-23 00:31:32,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 760 transitions. [2022-07-23 00:31:32,615 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 760 transitions. Word has length 184 [2022-07-23 00:31:32,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:31:32,615 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 760 transitions. [2022-07-23 00:31:32,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-23 00:31:32,616 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 760 transitions. [2022-07-23 00:31:32,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-23 00:31:32,619 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:31:32,619 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:31:32,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 00:31:32,620 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:31:32,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:31:32,621 INFO L85 PathProgramCache]: Analyzing trace with hash 825195323, now seen corresponding path program 1 times [2022-07-23 00:31:32,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:31:32,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739342133] [2022-07-23 00:31:32,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:31:32,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:31:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:32,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:31:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:32,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:32,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:32,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:32,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:31:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:32,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:32,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:32,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:32,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:31:32,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:32,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:32,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:32,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:32,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 00:31:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:32,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:32,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 00:31:32,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:32,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:32,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-23 00:31:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:32,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:32,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-23 00:31:32,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:32,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:32,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-23 00:31:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:32,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:32,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-23 00:31:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:32,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:32,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:32,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-23 00:31:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:32,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:32,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-23 00:31:32,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:33,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:33,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-23 00:31:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:33,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:33,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-23 00:31:33,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:33,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:33,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-23 00:31:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:33,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:33,055 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2022-07-23 00:31:33,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:31:33,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739342133] [2022-07-23 00:31:33,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739342133] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:31:33,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:31:33,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:31:33,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369053213] [2022-07-23 00:31:33,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:31:33,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:31:33,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:31:33,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:31:33,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:31:33,060 INFO L87 Difference]: Start difference. First operand 553 states and 760 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-23 00:31:34,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:31:34,377 INFO L93 Difference]: Finished difference Result 1614 states and 2294 transitions. [2022-07-23 00:31:34,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 00:31:34,379 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 184 [2022-07-23 00:31:34,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:31:34,388 INFO L225 Difference]: With dead ends: 1614 [2022-07-23 00:31:34,388 INFO L226 Difference]: Without dead ends: 1097 [2022-07-23 00:31:34,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-23 00:31:34,391 INFO L413 NwaCegarLoop]: 851 mSDtfsCounter, 964 mSDsluCounter, 1477 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 532 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 2328 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 532 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-23 00:31:34,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1034 Valid, 2328 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [532 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-23 00:31:34,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2022-07-23 00:31:34,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1041. [2022-07-23 00:31:34,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 741 states have (on average 1.3076923076923077) internal successors, (969), 750 states have internal predecessors, (969), 234 states have call successors, (234), 66 states have call predecessors, (234), 65 states have return successors, (232), 230 states have call predecessors, (232), 232 states have call successors, (232) [2022-07-23 00:31:34,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1435 transitions. [2022-07-23 00:31:34,453 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1435 transitions. Word has length 184 [2022-07-23 00:31:34,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:31:34,454 INFO L495 AbstractCegarLoop]: Abstraction has 1041 states and 1435 transitions. [2022-07-23 00:31:34,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-23 00:31:34,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1435 transitions. [2022-07-23 00:31:34,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-23 00:31:34,461 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:31:34,461 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:31:34,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 00:31:34,462 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:31:34,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:31:34,462 INFO L85 PathProgramCache]: Analyzing trace with hash -140417823, now seen corresponding path program 1 times [2022-07-23 00:31:34,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:31:34,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375139368] [2022-07-23 00:31:34,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:31:34,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:31:34,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:31:34,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:31:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:31:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 00:31:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 00:31:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-23 00:31:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-23 00:31:34,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-23 00:31:34,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-23 00:31:34,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:34,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-23 00:31:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-23 00:31:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-23 00:31:34,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-23 00:31:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-23 00:31:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:34,798 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2022-07-23 00:31:34,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:31:34,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375139368] [2022-07-23 00:31:34,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375139368] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:31:34,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:31:34,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 00:31:34,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200497061] [2022-07-23 00:31:34,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:31:34,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 00:31:34,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:31:34,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 00:31:34,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 00:31:34,801 INFO L87 Difference]: Start difference. First operand 1041 states and 1435 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-23 00:31:36,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:31:36,074 INFO L93 Difference]: Finished difference Result 2098 states and 2962 transitions. [2022-07-23 00:31:36,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 00:31:36,075 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 187 [2022-07-23 00:31:36,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:31:36,082 INFO L225 Difference]: With dead ends: 2098 [2022-07-23 00:31:36,082 INFO L226 Difference]: Without dead ends: 1093 [2022-07-23 00:31:36,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-23 00:31:36,086 INFO L413 NwaCegarLoop]: 1111 mSDtfsCounter, 1257 mSDsluCounter, 1968 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 477 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 3079 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 477 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-23 00:31:36,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1333 Valid, 3079 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [477 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-23 00:31:36,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2022-07-23 00:31:36,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1040. [2022-07-23 00:31:36,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1040 states, 740 states have (on average 1.304054054054054) internal successors, (965), 749 states have internal predecessors, (965), 234 states have call successors, (234), 66 states have call predecessors, (234), 65 states have return successors, (232), 230 states have call predecessors, (232), 232 states have call successors, (232) [2022-07-23 00:31:36,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1431 transitions. [2022-07-23 00:31:36,136 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1431 transitions. Word has length 187 [2022-07-23 00:31:36,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:31:36,137 INFO L495 AbstractCegarLoop]: Abstraction has 1040 states and 1431 transitions. [2022-07-23 00:31:36,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-23 00:31:36,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1431 transitions. [2022-07-23 00:31:36,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-07-23 00:31:36,141 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:31:36,142 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:31:36,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 00:31:36,142 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:31:36,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:31:36,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1713361567, now seen corresponding path program 1 times [2022-07-23 00:31:36,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:31:36,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451886806] [2022-07-23 00:31:36,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:31:36,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:31:36,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:31:36,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:31:36,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:36,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:31:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:36,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 00:31:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 00:31:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-23 00:31:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-23 00:31:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-23 00:31:36,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-23 00:31:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-23 00:31:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-23 00:31:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-23 00:31:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-23 00:31:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:36,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-23 00:31:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-23 00:31:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:36,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:36,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-23 00:31:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:36,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-23 00:31:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:36,572 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 710 trivial. 0 not checked. [2022-07-23 00:31:36,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:31:36,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451886806] [2022-07-23 00:31:36,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451886806] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:31:36,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:31:36,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:31:36,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355160650] [2022-07-23 00:31:36,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:31:36,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:31:36,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:31:36,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:31:36,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:31:36,576 INFO L87 Difference]: Start difference. First operand 1040 states and 1431 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-23 00:31:37,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:31:37,615 INFO L93 Difference]: Finished difference Result 3148 states and 4466 transitions. [2022-07-23 00:31:37,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 00:31:37,616 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 245 [2022-07-23 00:31:37,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:31:37,629 INFO L225 Difference]: With dead ends: 3148 [2022-07-23 00:31:37,630 INFO L226 Difference]: Without dead ends: 2140 [2022-07-23 00:31:37,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-23 00:31:37,639 INFO L413 NwaCegarLoop]: 1038 mSDtfsCounter, 1065 mSDsluCounter, 1137 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 650 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 650 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-23 00:31:37,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 2175 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [650 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-23 00:31:37,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2022-07-23 00:31:37,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2033. [2022-07-23 00:31:37,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2033 states, 1452 states have (on average 1.3078512396694215) internal successors, (1899), 1469 states have internal predecessors, (1899), 451 states have call successors, (451), 130 states have call predecessors, (451), 129 states have return successors, (449), 445 states have call predecessors, (449), 449 states have call successors, (449) [2022-07-23 00:31:37,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2033 states to 2033 states and 2799 transitions. [2022-07-23 00:31:37,743 INFO L78 Accepts]: Start accepts. Automaton has 2033 states and 2799 transitions. Word has length 245 [2022-07-23 00:31:37,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:31:37,744 INFO L495 AbstractCegarLoop]: Abstraction has 2033 states and 2799 transitions. [2022-07-23 00:31:37,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-23 00:31:37,745 INFO L276 IsEmpty]: Start isEmpty. Operand 2033 states and 2799 transitions. [2022-07-23 00:31:37,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-07-23 00:31:37,752 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:31:37,752 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:31:37,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-23 00:31:37,753 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:31:37,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:31:37,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1250643980, now seen corresponding path program 1 times [2022-07-23 00:31:37,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:31:37,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640350311] [2022-07-23 00:31:37,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:31:37,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:31:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:37,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:31:37,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:37,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:37,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:37,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:37,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:37,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:31:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:37,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:37,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:37,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:37,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:31:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:37,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:37,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:37,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 00:31:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:37,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:37,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 00:31:37,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:37,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:37,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-23 00:31:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:37,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:37,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-23 00:31:37,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:37,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:37,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-23 00:31:37,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:37,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:37,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-23 00:31:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:37,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:37,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-23 00:31:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:37,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:37,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:37,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-23 00:31:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:37,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:38,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:38,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-23 00:31:38,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:38,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:38,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-23 00:31:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:38,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:38,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:38,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-23 00:31:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:38,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:38,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-23 00:31:38,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:38,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:38,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:38,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-23 00:31:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:38,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:38,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:38,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:38,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:38,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-23 00:31:38,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:38,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:38,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:38,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:38,064 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 707 trivial. 0 not checked. [2022-07-23 00:31:38,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:31:38,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640350311] [2022-07-23 00:31:38,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640350311] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:31:38,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:31:38,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:31:38,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47623699] [2022-07-23 00:31:38,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:31:38,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:31:38,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:31:38,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:31:38,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:31:38,066 INFO L87 Difference]: Start difference. First operand 2033 states and 2799 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-07-23 00:31:39,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:31:39,214 INFO L93 Difference]: Finished difference Result 4862 states and 6998 transitions. [2022-07-23 00:31:39,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 00:31:39,215 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 267 [2022-07-23 00:31:39,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:31:39,233 INFO L225 Difference]: With dead ends: 4862 [2022-07-23 00:31:39,234 INFO L226 Difference]: Without dead ends: 2865 [2022-07-23 00:31:39,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-23 00:31:39,242 INFO L413 NwaCegarLoop]: 1045 mSDtfsCounter, 472 mSDsluCounter, 2294 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 3339 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-23 00:31:39,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 3339 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-23 00:31:39,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2865 states. [2022-07-23 00:31:39,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2865 to 2037. [2022-07-23 00:31:39,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2037 states, 1456 states have (on average 1.3070054945054945) internal successors, (1903), 1473 states have internal predecessors, (1903), 451 states have call successors, (451), 130 states have call predecessors, (451), 129 states have return successors, (449), 445 states have call predecessors, (449), 449 states have call successors, (449) [2022-07-23 00:31:39,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2037 states to 2037 states and 2803 transitions. [2022-07-23 00:31:39,345 INFO L78 Accepts]: Start accepts. Automaton has 2037 states and 2803 transitions. Word has length 267 [2022-07-23 00:31:39,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:31:39,346 INFO L495 AbstractCegarLoop]: Abstraction has 2037 states and 2803 transitions. [2022-07-23 00:31:39,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-07-23 00:31:39,347 INFO L276 IsEmpty]: Start isEmpty. Operand 2037 states and 2803 transitions. [2022-07-23 00:31:39,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-07-23 00:31:39,353 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:31:39,354 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:31:39,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-23 00:31:39,354 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:31:39,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:31:39,355 INFO L85 PathProgramCache]: Analyzing trace with hash -29219698, now seen corresponding path program 1 times [2022-07-23 00:31:39,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:31:39,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151803359] [2022-07-23 00:31:39,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:31:39,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:31:39,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:31:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:39,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:31:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:39,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:39,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:31:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:39,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 00:31:39,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 00:31:39,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-23 00:31:39,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-23 00:31:39,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:39,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-23 00:31:39,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-23 00:31:39,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:39,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-23 00:31:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-23 00:31:39,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:39,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-23 00:31:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-23 00:31:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:39,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-23 00:31:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-23 00:31:39,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:39,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-23 00:31:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:39,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-23 00:31:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:39,751 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2022-07-23 00:31:39,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:31:39,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151803359] [2022-07-23 00:31:39,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151803359] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 00:31:39,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436346028] [2022-07-23 00:31:39,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:31:39,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:31:39,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:31:39,755 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) [2022-07-23 00:31:39,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-23 00:31:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:40,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 2049 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 00:31:40,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:31:40,471 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 707 trivial. 0 not checked. [2022-07-23 00:31:40,471 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:31:40,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436346028] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:31:40,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 00:31:40,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2022-07-23 00:31:40,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035308473] [2022-07-23 00:31:40,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:31:40,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 00:31:40,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:31:40,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 00:31:40,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-23 00:31:40,474 INFO L87 Difference]: Start difference. First operand 2037 states and 2803 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-07-23 00:31:40,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:31:40,809 INFO L93 Difference]: Finished difference Result 3636 states and 5105 transitions. [2022-07-23 00:31:40,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 00:31:40,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 267 [2022-07-23 00:31:40,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:31:40,829 INFO L225 Difference]: With dead ends: 3636 [2022-07-23 00:31:40,829 INFO L226 Difference]: Without dead ends: 2630 [2022-07-23 00:31:40,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 344 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-23 00:31:40,835 INFO L413 NwaCegarLoop]: 1065 mSDtfsCounter, 933 mSDsluCounter, 2379 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 3444 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 00:31:40,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [933 Valid, 3444 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 00:31:40,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2630 states. [2022-07-23 00:31:40,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2630 to 2043. [2022-07-23 00:31:40,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2043 states, 1462 states have (on average 1.3057455540355678) internal successors, (1909), 1479 states have internal predecessors, (1909), 451 states have call successors, (451), 130 states have call predecessors, (451), 129 states have return successors, (449), 445 states have call predecessors, (449), 449 states have call successors, (449) [2022-07-23 00:31:40,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2809 transitions. [2022-07-23 00:31:40,952 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2809 transitions. Word has length 267 [2022-07-23 00:31:40,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:31:40,953 INFO L495 AbstractCegarLoop]: Abstraction has 2043 states and 2809 transitions. [2022-07-23 00:31:40,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-07-23 00:31:40,954 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2809 transitions. [2022-07-23 00:31:40,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-07-23 00:31:40,985 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:31:40,985 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:31:41,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-23 00:31:41,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-23 00:31:41,186 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:31:41,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:31:41,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1121162219, now seen corresponding path program 1 times [2022-07-23 00:31:41,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:31:41,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244580332] [2022-07-23 00:31:41,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:31:41,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:31:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:31:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:41,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:31:41,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:41,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:41,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:31:41,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 00:31:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:41,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 00:31:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:41,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-23 00:31:41,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-23 00:31:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:41,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-23 00:31:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-23 00:31:41,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-23 00:31:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-23 00:31:41,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-23 00:31:41,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:41,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-23 00:31:41,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-23 00:31:41,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:41,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-23 00:31:41,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-23 00:31:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-23 00:31:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-23 00:31:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:41,622 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-07-23 00:31:41,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:31:41,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244580332] [2022-07-23 00:31:41,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244580332] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 00:31:41,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203428842] [2022-07-23 00:31:41,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:31:41,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:31:41,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:31:41,625 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) [2022-07-23 00:31:41,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-23 00:31:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:42,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 2132 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-23 00:31:42,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:31:42,431 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 295 proven. 0 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2022-07-23 00:31:42,432 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:31:42,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203428842] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:31:42,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 00:31:42,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2022-07-23 00:31:42,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005788704] [2022-07-23 00:31:42,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:31:42,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:31:42,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:31:42,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:31:42,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-07-23 00:31:42,434 INFO L87 Difference]: Start difference. First operand 2043 states and 2809 transitions. Second operand has 6 states, 5 states have (on average 21.4) internal successors, (107), 6 states have internal predecessors, (107), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-23 00:31:42,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:31:42,694 INFO L93 Difference]: Finished difference Result 4091 states and 5650 transitions. [2022-07-23 00:31:42,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 00:31:42,694 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.4) internal successors, (107), 6 states have internal predecessors, (107), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 281 [2022-07-23 00:31:42,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:31:42,706 INFO L225 Difference]: With dead ends: 4091 [2022-07-23 00:31:42,706 INFO L226 Difference]: Without dead ends: 2047 [2022-07-23 00:31:42,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 357 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-07-23 00:31:42,714 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 6 mSDsluCounter, 2940 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3684 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:31:42,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3684 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 00:31:42,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2022-07-23 00:31:42,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 2047. [2022-07-23 00:31:42,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2047 states, 1466 states have (on average 1.304911323328786) internal successors, (1913), 1483 states have internal predecessors, (1913), 451 states have call successors, (451), 130 states have call predecessors, (451), 129 states have return successors, (449), 445 states have call predecessors, (449), 449 states have call successors, (449) [2022-07-23 00:31:42,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2047 states to 2047 states and 2813 transitions. [2022-07-23 00:31:42,837 INFO L78 Accepts]: Start accepts. Automaton has 2047 states and 2813 transitions. Word has length 281 [2022-07-23 00:31:42,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:31:42,838 INFO L495 AbstractCegarLoop]: Abstraction has 2047 states and 2813 transitions. [2022-07-23 00:31:42,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.4) internal successors, (107), 6 states have internal predecessors, (107), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-23 00:31:42,838 INFO L276 IsEmpty]: Start isEmpty. Operand 2047 states and 2813 transitions. [2022-07-23 00:31:42,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-07-23 00:31:42,845 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:31:42,845 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:31:42,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-23 00:31:43,060 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,SelfDestructingSolverStorable6 [2022-07-23 00:31:43,061 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:31:43,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:31:43,061 INFO L85 PathProgramCache]: Analyzing trace with hash 510727518, now seen corresponding path program 1 times [2022-07-23 00:31:43,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:31:43,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363342766] [2022-07-23 00:31:43,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:31:43,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:31:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:31:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:31:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:31:43,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:43,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 00:31:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:43,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-23 00:31:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-23 00:31:43,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:43,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-23 00:31:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-23 00:31:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-23 00:31:43,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:43,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-23 00:31:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:43,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-23 00:31:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-23 00:31:43,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-23 00:31:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-23 00:31:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:43,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-23 00:31:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:43,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-23 00:31:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:43,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-23 00:31:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:43,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-23 00:31:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:43,565 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 10 proven. 91 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2022-07-23 00:31:43,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:31:43,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363342766] [2022-07-23 00:31:43,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363342766] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 00:31:43,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481238310] [2022-07-23 00:31:43,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:31:43,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:31:43,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:31:43,567 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) [2022-07-23 00:31:43,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-23 00:31:44,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:44,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 2297 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-23 00:31:44,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:31:44,511 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 351 proven. 1 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2022-07-23 00:31:44,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:31:44,879 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 10 proven. 91 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2022-07-23 00:31:44,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481238310] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:31:44,880 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 00:31:44,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-07-23 00:31:44,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559277830] [2022-07-23 00:31:44,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 00:31:44,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-23 00:31:44,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:31:44,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-23 00:31:44,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-07-23 00:31:44,883 INFO L87 Difference]: Start difference. First operand 2047 states and 2813 transitions. Second operand has 17 states, 15 states have (on average 9.0) internal successors, (135), 13 states have internal predecessors, (135), 4 states have call successors, (64), 6 states have call predecessors, (64), 6 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2022-07-23 00:31:46,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:31:46,663 INFO L93 Difference]: Finished difference Result 4249 states and 5992 transitions. [2022-07-23 00:31:46,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-23 00:31:46,664 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 9.0) internal successors, (135), 13 states have internal predecessors, (135), 4 states have call successors, (64), 6 states have call predecessors, (64), 6 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) Word has length 292 [2022-07-23 00:31:46,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:31:46,677 INFO L225 Difference]: With dead ends: 4249 [2022-07-23 00:31:46,678 INFO L226 Difference]: Without dead ends: 2206 [2022-07-23 00:31:46,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 686 GetRequests, 655 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=181, Invalid=749, Unknown=0, NotChecked=0, Total=930 [2022-07-23 00:31:46,688 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 296 mSDsluCounter, 5712 mSDsCounter, 0 mSdLazyCounter, 1629 mSolverCounterSat, 467 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 6442 SdHoareTripleChecker+Invalid, 2096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 467 IncrementalHoareTripleChecker+Valid, 1629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-23 00:31:46,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 6442 Invalid, 2096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [467 Valid, 1629 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-23 00:31:46,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2022-07-23 00:31:46,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 2066. [2022-07-23 00:31:46,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2066 states, 1480 states have (on average 1.3027027027027027) internal successors, (1928), 1497 states have internal predecessors, (1928), 453 states have call successors, (453), 133 states have call predecessors, (453), 132 states have return successors, (451), 447 states have call predecessors, (451), 451 states have call successors, (451) [2022-07-23 00:31:46,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2066 states to 2066 states and 2832 transitions. [2022-07-23 00:31:46,825 INFO L78 Accepts]: Start accepts. Automaton has 2066 states and 2832 transitions. Word has length 292 [2022-07-23 00:31:46,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:31:46,826 INFO L495 AbstractCegarLoop]: Abstraction has 2066 states and 2832 transitions. [2022-07-23 00:31:46,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 9.0) internal successors, (135), 13 states have internal predecessors, (135), 4 states have call successors, (64), 6 states have call predecessors, (64), 6 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2022-07-23 00:31:46,826 INFO L276 IsEmpty]: Start isEmpty. Operand 2066 states and 2832 transitions. [2022-07-23 00:31:46,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-07-23 00:31:46,832 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:31:46,832 INFO L195 NwaCegarLoop]: trace histogram [21, 11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:31:46,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-23 00:31:47,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:31:47,046 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:31:47,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:31:47,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1037858016, now seen corresponding path program 2 times [2022-07-23 00:31:47,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:31:47,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472009979] [2022-07-23 00:31:47,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:31:47,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:31:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:31:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:31:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:47,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:31:47,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 00:31:47,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-23 00:31:47,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:47,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-23 00:31:47,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:47,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-23 00:31:47,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-23 00:31:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-23 00:31:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:47,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-23 00:31:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:47,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-23 00:31:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:47,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-23 00:31:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:47,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-23 00:31:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-23 00:31:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-23 00:31:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:47,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-23 00:31:47,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:47,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:47,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-23 00:31:47,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-23 00:31:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:47,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:47,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 12 proven. 138 refuted. 0 times theorem prover too weak. 1005 trivial. 0 not checked. [2022-07-23 00:31:47,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:31:47,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472009979] [2022-07-23 00:31:47,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472009979] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 00:31:47,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530357867] [2022-07-23 00:31:47,616 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 00:31:47,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:31:47,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:31:47,618 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) [2022-07-23 00:31:47,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-23 00:31:48,865 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-23 00:31:48,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 00:31:48,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 2447 conjuncts, 27 conjunts are in the unsatisfiable core [2022-07-23 00:31:48,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:31:49,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 415 proven. 5 refuted. 0 times theorem prover too weak. 735 trivial. 0 not checked. [2022-07-23 00:31:49,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:31:49,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 12 proven. 138 refuted. 0 times theorem prover too weak. 1005 trivial. 0 not checked. [2022-07-23 00:31:49,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530357867] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:31:49,580 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 00:31:49,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 8] total 22 [2022-07-23 00:31:49,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269037300] [2022-07-23 00:31:49,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 00:31:49,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-23 00:31:49,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:31:49,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-23 00:31:49,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=398, Unknown=0, NotChecked=0, Total=462 [2022-07-23 00:31:49,583 INFO L87 Difference]: Start difference. First operand 2066 states and 2832 transitions. Second operand has 22 states, 20 states have (on average 7.15) internal successors, (143), 18 states have internal predecessors, (143), 4 states have call successors, (64), 6 states have call predecessors, (64), 8 states have return successors, (45), 5 states have call predecessors, (45), 4 states have call successors, (45) [2022-07-23 00:31:51,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:31:51,743 INFO L93 Difference]: Finished difference Result 4270 states and 6007 transitions. [2022-07-23 00:31:51,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-23 00:31:51,744 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 7.15) internal successors, (143), 18 states have internal predecessors, (143), 4 states have call successors, (64), 6 states have call predecessors, (64), 8 states have return successors, (45), 5 states have call predecessors, (45), 4 states have call successors, (45) Word has length 302 [2022-07-23 00:31:51,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:31:51,754 INFO L225 Difference]: With dead ends: 4270 [2022-07-23 00:31:51,754 INFO L226 Difference]: Without dead ends: 2210 [2022-07-23 00:31:51,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 712 GetRequests, 674 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=219, Invalid=1187, Unknown=0, NotChecked=0, Total=1406 [2022-07-23 00:31:51,762 INFO L413 NwaCegarLoop]: 731 mSDtfsCounter, 301 mSDsluCounter, 6372 mSDsCounter, 0 mSdLazyCounter, 1807 mSolverCounterSat, 494 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 7103 SdHoareTripleChecker+Invalid, 2301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 494 IncrementalHoareTripleChecker+Valid, 1807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-23 00:31:51,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 7103 Invalid, 2301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [494 Valid, 1807 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-23 00:31:51,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2022-07-23 00:31:51,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 2070. [2022-07-23 00:31:51,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2070 states, 1484 states have (on average 1.3018867924528301) internal successors, (1932), 1501 states have internal predecessors, (1932), 453 states have call successors, (453), 133 states have call predecessors, (453), 132 states have return successors, (451), 447 states have call predecessors, (451), 451 states have call successors, (451) [2022-07-23 00:31:51,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2070 states to 2070 states and 2836 transitions. [2022-07-23 00:31:51,872 INFO L78 Accepts]: Start accepts. Automaton has 2070 states and 2836 transitions. Word has length 302 [2022-07-23 00:31:51,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:31:51,872 INFO L495 AbstractCegarLoop]: Abstraction has 2070 states and 2836 transitions. [2022-07-23 00:31:51,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 7.15) internal successors, (143), 18 states have internal predecessors, (143), 4 states have call successors, (64), 6 states have call predecessors, (64), 8 states have return successors, (45), 5 states have call predecessors, (45), 4 states have call successors, (45) [2022-07-23 00:31:51,873 INFO L276 IsEmpty]: Start isEmpty. Operand 2070 states and 2836 transitions. [2022-07-23 00:31:51,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-07-23 00:31:51,879 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:31:51,879 INFO L195 NwaCegarLoop]: trace histogram [31, 11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:31:51,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-23 00:31:52,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:31:52,108 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:31:52,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:31:52,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1729942178, now seen corresponding path program 3 times [2022-07-23 00:31:52,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:31:52,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003298900] [2022-07-23 00:31:52,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:31:52,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:31:52,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:31:52,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:52,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:31:52,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:31:52,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:52,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:52,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 00:31:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-23 00:31:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-23 00:31:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:52,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-23 00:31:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-23 00:31:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-23 00:31:52,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-23 00:31:52,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-23 00:31:52,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-23 00:31:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-23 00:31:52,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-23 00:31:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:52,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-23 00:31:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-23 00:31:52,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:52,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-07-23 00:31:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-23 00:31:52,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:52,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1520 backedges. 14 proven. 204 refuted. 0 times theorem prover too weak. 1302 trivial. 0 not checked. [2022-07-23 00:31:52,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:31:52,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003298900] [2022-07-23 00:31:52,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003298900] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 00:31:52,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918909750] [2022-07-23 00:31:52,755 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-23 00:31:52,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:31:52,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:31:52,757 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 00:31:52,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-23 00:31:55,387 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-07-23 00:31:55,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 00:31:55,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 1719 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-23 00:31:55,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:31:55,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1520 backedges. 338 proven. 6 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2022-07-23 00:31:55,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:31:56,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1520 backedges. 212 proven. 6 refuted. 0 times theorem prover too weak. 1302 trivial. 0 not checked. [2022-07-23 00:31:56,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918909750] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:31:56,093 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 00:31:56,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 9] total 24 [2022-07-23 00:31:56,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738984779] [2022-07-23 00:31:56,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 00:31:56,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-23 00:31:56,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:31:56,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-23 00:31:56,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2022-07-23 00:31:56,096 INFO L87 Difference]: Start difference. First operand 2070 states and 2836 transitions. Second operand has 24 states, 22 states have (on average 6.590909090909091) internal successors, (145), 20 states have internal predecessors, (145), 4 states have call successors, (54), 6 states have call predecessors, (54), 7 states have return successors, (43), 5 states have call predecessors, (43), 4 states have call successors, (43) [2022-07-23 00:31:58,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:31:58,710 INFO L93 Difference]: Finished difference Result 4278 states and 6015 transitions. [2022-07-23 00:31:58,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-23 00:31:58,711 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 6.590909090909091) internal successors, (145), 20 states have internal predecessors, (145), 4 states have call successors, (54), 6 states have call predecessors, (54), 7 states have return successors, (43), 5 states have call predecessors, (43), 4 states have call successors, (43) Word has length 312 [2022-07-23 00:31:58,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:31:58,722 INFO L225 Difference]: With dead ends: 4278 [2022-07-23 00:31:58,722 INFO L226 Difference]: Without dead ends: 2214 [2022-07-23 00:31:58,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 733 GetRequests, 690 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=272, Invalid=1534, Unknown=0, NotChecked=0, Total=1806 [2022-07-23 00:31:58,731 INFO L413 NwaCegarLoop]: 739 mSDtfsCounter, 305 mSDsluCounter, 9311 mSDsCounter, 0 mSdLazyCounter, 2646 mSolverCounterSat, 481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 10050 SdHoareTripleChecker+Invalid, 3127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 2646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:31:58,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 10050 Invalid, 3127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 2646 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-23 00:31:58,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2022-07-23 00:31:58,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 2074. [2022-07-23 00:31:58,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2074 states, 1488 states have (on average 1.3010752688172043) internal successors, (1936), 1505 states have internal predecessors, (1936), 453 states have call successors, (453), 133 states have call predecessors, (453), 132 states have return successors, (451), 447 states have call predecessors, (451), 451 states have call successors, (451) [2022-07-23 00:31:58,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2074 states to 2074 states and 2840 transitions. [2022-07-23 00:31:58,863 INFO L78 Accepts]: Start accepts. Automaton has 2074 states and 2840 transitions. Word has length 312 [2022-07-23 00:31:58,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:31:58,863 INFO L495 AbstractCegarLoop]: Abstraction has 2074 states and 2840 transitions. [2022-07-23 00:31:58,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 6.590909090909091) internal successors, (145), 20 states have internal predecessors, (145), 4 states have call successors, (54), 6 states have call predecessors, (54), 7 states have return successors, (43), 5 states have call predecessors, (43), 4 states have call successors, (43) [2022-07-23 00:31:58,864 INFO L276 IsEmpty]: Start isEmpty. Operand 2074 states and 2840 transitions. [2022-07-23 00:31:58,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2022-07-23 00:31:58,869 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:31:58,870 INFO L195 NwaCegarLoop]: trace histogram [41, 11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:31:58,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-23 00:31:59,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-23 00:31:59,095 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:31:59,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:31:59,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1494093216, now seen corresponding path program 4 times [2022-07-23 00:31:59,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:31:59,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8139658] [2022-07-23 00:31:59,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:31:59,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:31:59,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:31:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:59,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:59,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:31:59,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:59,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:31:59,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:59,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 00:31:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:59,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-23 00:31:59,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:59,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-23 00:31:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-23 00:31:59,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-23 00:31:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:59,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-23 00:31:59,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-23 00:31:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-23 00:31:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:59,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-23 00:31:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:59,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-23 00:31:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-23 00:31:59,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-23 00:31:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:59,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-23 00:31:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:59,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:59,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-23 00:31:59,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:59,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:31:59,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-23 00:31:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:31:59,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:31:59,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1985 backedges. 16 proven. 289 refuted. 0 times theorem prover too weak. 1680 trivial. 0 not checked. [2022-07-23 00:31:59,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:31:59,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8139658] [2022-07-23 00:31:59,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8139658] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 00:31:59,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606850286] [2022-07-23 00:31:59,745 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-23 00:31:59,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:31:59,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:31:59,746 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 00:31:59,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-23 00:32:01,354 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-23 00:32:01,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 00:32:01,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 2747 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-23 00:32:01,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:32:01,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1985 backedges. 1181 proven. 13 refuted. 0 times theorem prover too weak. 791 trivial. 0 not checked. [2022-07-23 00:32:01,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:32:02,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1985 backedges. 140 proven. 165 refuted. 0 times theorem prover too weak. 1680 trivial. 0 not checked. [2022-07-23 00:32:02,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606850286] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:32:02,010 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 00:32:02,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 24 [2022-07-23 00:32:02,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058965490] [2022-07-23 00:32:02,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 00:32:02,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-23 00:32:02,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:32:02,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-23 00:32:02,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=478, Unknown=0, NotChecked=0, Total=552 [2022-07-23 00:32:02,012 INFO L87 Difference]: Start difference. First operand 2074 states and 2840 transitions. Second operand has 24 states, 22 states have (on average 6.636363636363637) internal successors, (146), 20 states have internal predecessors, (146), 4 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (45), 4 states have call predecessors, (45), 4 states have call successors, (45) [2022-07-23 00:32:04,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:32:04,603 INFO L93 Difference]: Finished difference Result 4298 states and 6040 transitions. [2022-07-23 00:32:04,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-07-23 00:32:04,604 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 6.636363636363637) internal successors, (146), 20 states have internal predecessors, (146), 4 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (45), 4 states have call predecessors, (45), 4 states have call successors, (45) Word has length 322 [2022-07-23 00:32:04,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:32:04,617 INFO L225 Difference]: With dead ends: 4298 [2022-07-23 00:32:04,617 INFO L226 Difference]: Without dead ends: 2235 [2022-07-23 00:32:04,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 760 GetRequests, 711 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=333, Invalid=1923, Unknown=0, NotChecked=0, Total=2256 [2022-07-23 00:32:04,625 INFO L413 NwaCegarLoop]: 741 mSDtfsCounter, 308 mSDsluCounter, 7463 mSDsCounter, 0 mSdLazyCounter, 2271 mSolverCounterSat, 480 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 8204 SdHoareTripleChecker+Invalid, 2751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 480 IncrementalHoareTripleChecker+Valid, 2271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-23 00:32:04,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 8204 Invalid, 2751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [480 Valid, 2271 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-23 00:32:04,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2235 states. [2022-07-23 00:32:04,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2235 to 2095. [2022-07-23 00:32:04,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2095 states, 1507 states have (on average 1.3005972130059722) internal successors, (1960), 1524 states have internal predecessors, (1960), 453 states have call successors, (453), 135 states have call predecessors, (453), 134 states have return successors, (451), 447 states have call predecessors, (451), 451 states have call successors, (451) [2022-07-23 00:32:04,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2095 states to 2095 states and 2864 transitions. [2022-07-23 00:32:04,816 INFO L78 Accepts]: Start accepts. Automaton has 2095 states and 2864 transitions. Word has length 322 [2022-07-23 00:32:04,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:32:04,816 INFO L495 AbstractCegarLoop]: Abstraction has 2095 states and 2864 transitions. [2022-07-23 00:32:04,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 6.636363636363637) internal successors, (146), 20 states have internal predecessors, (146), 4 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (45), 4 states have call predecessors, (45), 4 states have call successors, (45) [2022-07-23 00:32:04,817 INFO L276 IsEmpty]: Start isEmpty. Operand 2095 states and 2864 transitions. [2022-07-23 00:32:04,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-07-23 00:32:04,824 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:32:04,824 INFO L195 NwaCegarLoop]: trace histogram [47, 11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:32:04,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-23 00:32:05,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:32:05,040 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:32:05,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:32:05,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1461902608, now seen corresponding path program 5 times [2022-07-23 00:32:05,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:32:05,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705276592] [2022-07-23 00:32:05,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:32:05,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:32:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:32:05,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:05,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:32:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:32:05,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:05,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:32:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:32:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:32:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 00:32:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:05,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-23 00:32:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-23 00:32:05,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:05,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-23 00:32:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:05,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-23 00:32:05,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-23 00:32:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-23 00:32:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-23 00:32:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:05,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-23 00:32:05,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-23 00:32:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-23 00:32:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-23 00:32:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:32:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-07-23 00:32:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:32:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-07-23 00:32:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:32:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-07-23 00:32:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:05,790 INFO L134 CoverageAnalysis]: Checked inductivity of 2312 backedges. 18 proven. 369 refuted. 0 times theorem prover too weak. 1925 trivial. 0 not checked. [2022-07-23 00:32:05,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:32:05,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705276592] [2022-07-23 00:32:05,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705276592] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 00:32:05,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344469517] [2022-07-23 00:32:05,791 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-23 00:32:05,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:32:05,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:32:05,793 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 00:32:05,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-23 00:32:10,556 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2022-07-23 00:32:10,557 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 00:32:10,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 25 conjunts are in the unsatisfiable core [2022-07-23 00:32:10,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:32:10,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2312 backedges. 994 proven. 15 refuted. 0 times theorem prover too weak. 1303 trivial. 0 not checked. [2022-07-23 00:32:10,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:32:11,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2312 backedges. 60 proven. 327 refuted. 0 times theorem prover too weak. 1925 trivial. 0 not checked. [2022-07-23 00:32:11,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344469517] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:32:11,205 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 00:32:11,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 26 [2022-07-23 00:32:11,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381293681] [2022-07-23 00:32:11,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 00:32:11,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-23 00:32:11,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:32:11,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-23 00:32:11,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=565, Unknown=0, NotChecked=0, Total=650 [2022-07-23 00:32:11,207 INFO L87 Difference]: Start difference. First operand 2095 states and 2864 transitions. Second operand has 26 states, 24 states have (on average 6.041666666666667) internal successors, (145), 22 states have internal predecessors, (145), 4 states have call successors, (63), 6 states have call predecessors, (63), 6 states have return successors, (45), 4 states have call predecessors, (45), 4 states have call successors, (45) [2022-07-23 00:32:13,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:32:13,714 INFO L93 Difference]: Finished difference Result 4328 states and 6067 transitions. [2022-07-23 00:32:13,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-07-23 00:32:13,715 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 6.041666666666667) internal successors, (145), 22 states have internal predecessors, (145), 4 states have call successors, (63), 6 states have call predecessors, (63), 6 states have return successors, (45), 4 states have call predecessors, (45), 4 states have call successors, (45) Word has length 328 [2022-07-23 00:32:13,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:32:13,726 INFO L225 Difference]: With dead ends: 4328 [2022-07-23 00:32:13,726 INFO L226 Difference]: Without dead ends: 2240 [2022-07-23 00:32:13,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 776 GetRequests, 722 SyntacticMatches, 3 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=388, Invalid=2368, Unknown=0, NotChecked=0, Total=2756 [2022-07-23 00:32:13,734 INFO L413 NwaCegarLoop]: 746 mSDtfsCounter, 311 mSDsluCounter, 8779 mSDsCounter, 0 mSdLazyCounter, 2715 mSolverCounterSat, 475 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 9525 SdHoareTripleChecker+Invalid, 3190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 475 IncrementalHoareTripleChecker+Valid, 2715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-23 00:32:13,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 9525 Invalid, 3190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [475 Valid, 2715 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-23 00:32:13,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2022-07-23 00:32:13,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2100. [2022-07-23 00:32:13,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 1512 states have (on average 1.2996031746031746) internal successors, (1965), 1529 states have internal predecessors, (1965), 453 states have call successors, (453), 135 states have call predecessors, (453), 134 states have return successors, (451), 447 states have call predecessors, (451), 451 states have call successors, (451) [2022-07-23 00:32:13,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2869 transitions. [2022-07-23 00:32:13,831 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2869 transitions. Word has length 328 [2022-07-23 00:32:13,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:32:13,831 INFO L495 AbstractCegarLoop]: Abstraction has 2100 states and 2869 transitions. [2022-07-23 00:32:13,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 6.041666666666667) internal successors, (145), 22 states have internal predecessors, (145), 4 states have call successors, (63), 6 states have call predecessors, (63), 6 states have return successors, (45), 4 states have call predecessors, (45), 4 states have call successors, (45) [2022-07-23 00:32:13,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2869 transitions. [2022-07-23 00:32:13,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2022-07-23 00:32:13,837 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:32:13,837 INFO L195 NwaCegarLoop]: trace histogram [53, 11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:32:13,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-23 00:32:14,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:32:14,050 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:32:14,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:32:14,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1477800032, now seen corresponding path program 6 times [2022-07-23 00:32:14,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:32:14,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440807016] [2022-07-23 00:32:14,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:32:14,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:32:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:32:14,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:14,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:32:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:32:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:32:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:32:14,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:32:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 00:32:14,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:14,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-23 00:32:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 00:32:14,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-23 00:32:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:32:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 00:32:14,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-23 00:32:14,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:14,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-23 00:32:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-23 00:32:14,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-23 00:32:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-23 00:32:14,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-23 00:32:14,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:32:14,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-07-23 00:32:14,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:14,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:32:14,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-23 00:32:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:32:14,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-07-23 00:32:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:32:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:32:14,854 INFO L134 CoverageAnalysis]: Checked inductivity of 2675 backedges. 20 proven. 460 refuted. 0 times theorem prover too weak. 2195 trivial. 0 not checked. [2022-07-23 00:32:14,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:32:14,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440807016] [2022-07-23 00:32:14,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440807016] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 00:32:14,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098620628] [2022-07-23 00:32:14,855 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-23 00:32:14,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:32:14,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:32:14,860 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 00:32:14,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process