./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-47dffc7-1-144_2a-drivers--net--usb--cdc-phonet.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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-validator-v0.8/linux-stable-47dffc7-1-144_2a-drivers--net--usb--cdc-phonet.ko-entry_point_ldv-val-v0.8.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 8f21bcf4203715ff2cf8f1fa847025b0ca29b6eb32fc30a64baf7cbf3cb00ebc --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 00:08:18,131 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 00:08:18,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 00:08:18,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 00:08:18,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 00:08:18,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 00:08:18,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 00:08:18,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 00:08:18,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 00:08:18,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 00:08:18,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 00:08:18,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 00:08:18,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 00:08:18,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 00:08:18,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 00:08:18,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 00:08:18,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 00:08:18,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 00:08:18,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 00:08:18,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 00:08:18,211 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 00:08:18,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 00:08:18,213 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 00:08:18,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 00:08:18,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 00:08:18,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 00:08:18,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 00:08:18,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 00:08:18,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 00:08:18,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 00:08:18,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 00:08:18,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 00:08:18,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 00:08:18,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 00:08:18,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 00:08:18,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 00:08:18,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 00:08:18,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 00:08:18,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 00:08:18,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 00:08:18,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 00:08:18,231 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 00:08:18,233 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 00:08:18,266 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 00:08:18,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 00:08:18,266 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 00:08:18,268 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 00:08:18,269 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 00:08:18,269 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 00:08:18,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 00:08:18,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 00:08:18,270 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 00:08:18,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 00:08:18,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 00:08:18,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 00:08:18,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 00:08:18,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 00:08:18,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 00:08:18,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 00:08:18,272 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 00:08:18,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 00:08:18,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 00:08:18,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 00:08:18,273 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 00:08:18,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 00:08:18,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 00:08:18,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 00:08:18,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 00:08:18,275 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 00:08:18,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 00:08:18,275 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 00:08:18,275 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 00:08:18,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 00:08:18,276 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f21bcf4203715ff2cf8f1fa847025b0ca29b6eb32fc30a64baf7cbf3cb00ebc [2022-07-20 00:08:18,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 00:08:18,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 00:08:18,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 00:08:18,573 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 00:08:18,573 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 00:08:18,575 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-47dffc7-1-144_2a-drivers--net--usb--cdc-phonet.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-20 00:08:18,645 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b23b47dd9/67466ec32fed4db5967cad9a33b73653/FLAG56352b4f5 [2022-07-20 00:08:19,282 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 00:08:19,282 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-47dffc7-1-144_2a-drivers--net--usb--cdc-phonet.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-20 00:08:19,330 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b23b47dd9/67466ec32fed4db5967cad9a33b73653/FLAG56352b4f5 [2022-07-20 00:08:19,454 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b23b47dd9/67466ec32fed4db5967cad9a33b73653 [2022-07-20 00:08:19,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 00:08:19,457 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 00:08:19,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 00:08:19,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 00:08:19,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 00:08:19,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:08:19" (1/1) ... [2022-07-20 00:08:19,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c32076b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:19, skipping insertion in model container [2022-07-20 00:08:19,469 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:08:19" (1/1) ... [2022-07-20 00:08:19,474 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 00:08:19,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 00:08:20,647 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-validator-v0.8/linux-stable-47dffc7-1-144_2a-drivers--net--usb--cdc-phonet.ko-entry_point_ldv-val-v0.8.cil.out.i[188986,188999] [2022-07-20 00:08:20,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:08:20,732 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 00:08:20,938 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-validator-v0.8/linux-stable-47dffc7-1-144_2a-drivers--net--usb--cdc-phonet.ko-entry_point_ldv-val-v0.8.cil.out.i[188986,188999] [2022-07-20 00:08:20,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:08:21,028 INFO L208 MainTranslator]: Completed translation [2022-07-20 00:08:21,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:21 WrapperNode [2022-07-20 00:08:21,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 00:08:21,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 00:08:21,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 00:08:21,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 00:08:21,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:21" (1/1) ... [2022-07-20 00:08:21,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:21" (1/1) ... [2022-07-20 00:08:21,183 INFO L137 Inliner]: procedures = 153, calls = 606, calls flagged for inlining = 71, calls inlined = 71, statements flattened = 1853 [2022-07-20 00:08:21,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 00:08:21,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 00:08:21,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 00:08:21,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 00:08:21,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:21" (1/1) ... [2022-07-20 00:08:21,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:21" (1/1) ... [2022-07-20 00:08:21,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:21" (1/1) ... [2022-07-20 00:08:21,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:21" (1/1) ... [2022-07-20 00:08:21,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:21" (1/1) ... [2022-07-20 00:08:21,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:21" (1/1) ... [2022-07-20 00:08:21,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:21" (1/1) ... [2022-07-20 00:08:21,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 00:08:21,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 00:08:21,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 00:08:21,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 00:08:21,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:21" (1/1) ... [2022-07-20 00:08:21,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 00:08:21,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 00:08:21,381 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) [2022-07-20 00:08:21,411 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 [2022-07-20 00:08:21,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_11 [2022-07-20 00:08:21,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_11 [2022-07-20 00:08:21,446 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-20 00:08:21,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-20 00:08:21,446 INFO L130 BoogieDeclarations]: Found specification of procedure usbpn_ioctl [2022-07-20 00:08:21,446 INFO L138 BoogieDeclarations]: Found implementation of procedure usbpn_ioctl [2022-07-20 00:08:21,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-20 00:08:21,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_3 [2022-07-20 00:08:21,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_3 [2022-07-20 00:08:21,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_8 [2022-07-20 00:08:21,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_8 [2022-07-20 00:08:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure usbpn_close [2022-07-20 00:08:21,448 INFO L138 BoogieDeclarations]: Found implementation of procedure usbpn_close [2022-07-20 00:08:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-20 00:08:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-20 00:08:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 00:08:21,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 00:08:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-20 00:08:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 00:08:21,449 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 00:08:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-07-20 00:08:21,449 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-07-20 00:08:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-20 00:08:21,449 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-20 00:08:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-07-20 00:08:21,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-07-20 00:08:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-07-20 00:08:21,450 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-07-20 00:08:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2022-07-20 00:08:21,450 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2022-07-20 00:08:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-20 00:08:21,450 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-20 00:08:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-20 00:08:21,451 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-20 00:08:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-20 00:08:21,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-20 00:08:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 00:08:21,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 00:08:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-07-20 00:08:21,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-07-20 00:08:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-20 00:08:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure usbpn_disconnect [2022-07-20 00:08:21,452 INFO L138 BoogieDeclarations]: Found implementation of procedure usbpn_disconnect [2022-07-20 00:08:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure usbpn_set_mtu [2022-07-20 00:08:21,453 INFO L138 BoogieDeclarations]: Found implementation of procedure usbpn_set_mtu [2022-07-20 00:08:21,453 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2022-07-20 00:08:21,453 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2022-07-20 00:08:21,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-20 00:08:21,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-20 00:08:21,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-20 00:08:21,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 00:08:21,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 00:08:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure rx_submit [2022-07-20 00:08:21,454 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_submit [2022-07-20 00:08:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-20 00:08:21,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-20 00:08:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-20 00:08:21,456 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-20 00:08:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-20 00:08:21,457 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-20 00:08:21,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 00:08:21,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-20 00:08:21,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-20 00:08:21,458 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-20 00:08:21,458 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-20 00:08:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 00:08:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-20 00:08:21,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-20 00:08:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 00:08:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 00:08:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-20 00:08:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 00:08:21,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 00:08:21,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 00:08:21,460 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-07-20 00:08:21,460 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-07-20 00:08:21,461 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-20 00:08:21,461 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-20 00:08:21,461 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-20 00:08:21,461 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-20 00:08:21,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 00:08:21,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 00:08:21,461 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-20 00:08:21,461 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-20 00:08:21,462 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-20 00:08:21,462 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-20 00:08:21,462 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-20 00:08:21,462 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-20 00:08:21,462 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-20 00:08:21,463 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-20 00:08:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-07-20 00:08:21,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-07-20 00:08:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 00:08:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-20 00:08:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 00:08:21,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 00:08:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure rx_complete [2022-07-20 00:08:21,465 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_complete [2022-07-20 00:08:21,901 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 00:08:21,903 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 00:08:22,480 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 00:08:24,277 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 00:08:24,288 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 00:08:24,289 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-20 00:08:24,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:08:24 BoogieIcfgContainer [2022-07-20 00:08:24,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 00:08:24,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 00:08:24,294 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 00:08:24,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 00:08:24,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 12:08:19" (1/3) ... [2022-07-20 00:08:24,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5061e17e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:08:24, skipping insertion in model container [2022-07-20 00:08:24,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:21" (2/3) ... [2022-07-20 00:08:24,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5061e17e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:08:24, skipping insertion in model container [2022-07-20 00:08:24,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:08:24" (3/3) ... [2022-07-20 00:08:24,300 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-47dffc7-1-144_2a-drivers--net--usb--cdc-phonet.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-20 00:08:24,312 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 00:08:24,313 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 00:08:24,367 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 00:08:24,373 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@771731a7, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@42d7772c [2022-07-20 00:08:24,373 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 00:08:24,379 INFO L276 IsEmpty]: Start isEmpty. Operand has 606 states, 452 states have (on average 1.3628318584070795) internal successors, (616), 471 states have internal predecessors, (616), 113 states have call successors, (113), 40 states have call predecessors, (113), 39 states have return successors, (107), 105 states have call predecessors, (107), 107 states have call successors, (107) [2022-07-20 00:08:24,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-20 00:08:24,391 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:08:24,392 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-20 00:08:24,392 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:08:24,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:08:24,399 INFO L85 PathProgramCache]: Analyzing trace with hash -2089212430, now seen corresponding path program 1 times [2022-07-20 00:08:24,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:08:24,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951272323] [2022-07-20 00:08:24,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:08:24,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:08:24,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:24,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:08:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:24,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:24,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:24,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:24,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:08:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:24,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:24,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:24,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:24,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:08:24,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:24,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:24,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:24,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:24,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:24,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:08:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:24,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:08:24,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:24,950 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-20 00:08:24,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:08:24,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951272323] [2022-07-20 00:08:24,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951272323] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:08:24,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:08:24,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 00:08:24,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642942090] [2022-07-20 00:08:24,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:08:24,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 00:08:24,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:08:24,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 00:08:24,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 00:08:25,001 INFO L87 Difference]: Start difference. First operand has 606 states, 452 states have (on average 1.3628318584070795) internal successors, (616), 471 states have internal predecessors, (616), 113 states have call successors, (113), 40 states have call predecessors, (113), 39 states have return successors, (107), 105 states have call predecessors, (107), 107 states have call successors, (107) Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-20 00:08:27,277 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:08:28,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:08:28,757 INFO L93 Difference]: Finished difference Result 1296 states and 1833 transitions. [2022-07-20 00:08:28,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 00:08:28,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 78 [2022-07-20 00:08:28,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:08:28,784 INFO L225 Difference]: With dead ends: 1296 [2022-07-20 00:08:28,785 INFO L226 Difference]: Without dead ends: 681 [2022-07-20 00:08:28,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:08:28,797 INFO L413 NwaCegarLoop]: 810 mSDtfsCounter, 444 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-20 00:08:28,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 1555 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-20 00:08:28,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2022-07-20 00:08:28,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 592. [2022-07-20 00:08:28,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 446 states have (on average 1.3318385650224216) internal successors, (594), 457 states have internal predecessors, (594), 107 states have call successors, (107), 39 states have call predecessors, (107), 38 states have return successors, (102), 100 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-20 00:08:28,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 803 transitions. [2022-07-20 00:08:28,886 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 803 transitions. Word has length 78 [2022-07-20 00:08:28,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:08:28,886 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 803 transitions. [2022-07-20 00:08:28,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-20 00:08:28,887 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 803 transitions. [2022-07-20 00:08:28,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-20 00:08:28,895 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:08:28,896 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-20 00:08:28,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 00:08:28,896 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:08:28,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:08:28,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1882990472, now seen corresponding path program 1 times [2022-07-20 00:08:28,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:08:28,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518909371] [2022-07-20 00:08:28,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:08:28,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:08:28,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:29,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:08:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:29,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:29,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:29,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:29,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:08:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:29,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:29,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:29,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:29,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:08:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:29,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:29,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:29,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:29,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:08:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:29,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:08:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:29,104 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-20 00:08:29,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:08:29,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518909371] [2022-07-20 00:08:29,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518909371] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:08:29,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:08:29,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:08:29,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499493135] [2022-07-20 00:08:29,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:08:29,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:08:29,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:08:29,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:08:29,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:08:29,108 INFO L87 Difference]: Start difference. First operand 592 states and 803 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-20 00:08:32,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:08:32,455 INFO L93 Difference]: Finished difference Result 1891 states and 2607 transitions. [2022-07-20 00:08:32,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 00:08:32,456 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 78 [2022-07-20 00:08:32,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:08:32,466 INFO L225 Difference]: With dead ends: 1891 [2022-07-20 00:08:32,466 INFO L226 Difference]: Without dead ends: 1317 [2022-07-20 00:08:32,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-20 00:08:32,470 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 2127 mSDsluCounter, 1020 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 915 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2213 SdHoareTripleChecker+Valid, 1879 SdHoareTripleChecker+Invalid, 1641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 915 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-20 00:08:32,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2213 Valid, 1879 Invalid, 1641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [915 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-20 00:08:32,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2022-07-20 00:08:32,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1143. [2022-07-20 00:08:32,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 864 states have (on average 1.3321759259259258) internal successors, (1151), 882 states have internal predecessors, (1151), 203 states have call successors, (203), 76 states have call predecessors, (203), 75 states have return successors, (198), 194 states have call predecessors, (198), 198 states have call successors, (198) [2022-07-20 00:08:32,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1552 transitions. [2022-07-20 00:08:32,541 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1552 transitions. Word has length 78 [2022-07-20 00:08:32,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:08:32,542 INFO L495 AbstractCegarLoop]: Abstraction has 1143 states and 1552 transitions. [2022-07-20 00:08:32,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-20 00:08:32,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1552 transitions. [2022-07-20 00:08:32,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-20 00:08:32,544 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:08:32,545 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-20 00:08:32,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 00:08:32,545 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:08:32,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:08:32,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1125703583, now seen corresponding path program 1 times [2022-07-20 00:08:32,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:08:32,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986490604] [2022-07-20 00:08:32,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:08:32,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:08:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:32,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:08:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:32,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:32,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:32,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:08:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:32,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:32,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:32,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:08:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:32,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:32,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:32,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:32,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:08:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:32,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:08:32,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:32,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 00:08:32,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:32,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:32,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:32,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:32,783 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-07-20 00:08:32,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:08:32,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986490604] [2022-07-20 00:08:32,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986490604] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:08:32,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:08:32,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:08:32,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820353304] [2022-07-20 00:08:32,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:08:32,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:08:32,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:08:32,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:08:32,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:08:32,786 INFO L87 Difference]: Start difference. First operand 1143 states and 1552 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-20 00:08:36,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:08:36,523 INFO L93 Difference]: Finished difference Result 1343 states and 1856 transitions. [2022-07-20 00:08:36,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 00:08:36,524 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 98 [2022-07-20 00:08:36,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:08:36,532 INFO L225 Difference]: With dead ends: 1343 [2022-07-20 00:08:36,533 INFO L226 Difference]: Without dead ends: 1330 [2022-07-20 00:08:36,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-20 00:08:36,535 INFO L413 NwaCegarLoop]: 781 mSDtfsCounter, 1176 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1247 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-20 00:08:36,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1247 Valid, 1796 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-20 00:08:36,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2022-07-20 00:08:36,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1143. [2022-07-20 00:08:36,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 864 states have (on average 1.3310185185185186) internal successors, (1150), 882 states have internal predecessors, (1150), 203 states have call successors, (203), 76 states have call predecessors, (203), 75 states have return successors, (198), 194 states have call predecessors, (198), 198 states have call successors, (198) [2022-07-20 00:08:36,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1551 transitions. [2022-07-20 00:08:36,607 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1551 transitions. Word has length 98 [2022-07-20 00:08:36,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:08:36,608 INFO L495 AbstractCegarLoop]: Abstraction has 1143 states and 1551 transitions. [2022-07-20 00:08:36,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-20 00:08:36,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1551 transitions. [2022-07-20 00:08:36,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-20 00:08:36,612 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:08:36,612 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-20 00:08:36,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 00:08:36,613 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:08:36,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:08:36,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1068445281, now seen corresponding path program 1 times [2022-07-20 00:08:36,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:08:36,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534681210] [2022-07-20 00:08:36,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:08:36,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:08:36,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:36,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:08:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:36,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:36,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:36,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:36,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:08:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:36,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:36,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:36,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:36,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:08:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:36,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:36,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:36,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:36,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:08:36,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:36,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:08:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:36,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 00:08:36,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:36,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:37,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:37,015 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-07-20 00:08:37,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:08:37,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534681210] [2022-07-20 00:08:37,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534681210] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:08:37,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:08:37,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:08:37,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555656372] [2022-07-20 00:08:37,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:08:37,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:08:37,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:08:37,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:08:37,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:08:37,022 INFO L87 Difference]: Start difference. First operand 1143 states and 1551 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 00:08:41,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:08:42,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:08:46,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:08:46,590 INFO L93 Difference]: Finished difference Result 3736 states and 5252 transitions. [2022-07-20 00:08:46,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 00:08:46,591 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 98 [2022-07-20 00:08:46,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:08:46,611 INFO L225 Difference]: With dead ends: 3736 [2022-07-20 00:08:46,611 INFO L226 Difference]: Without dead ends: 2611 [2022-07-20 00:08:46,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-20 00:08:46,621 INFO L413 NwaCegarLoop]: 1086 mSDtfsCounter, 1433 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 556 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 2624 SdHoareTripleChecker+Invalid, 1592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 556 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-07-20 00:08:46,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 2624 Invalid, 1592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [556 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-07-20 00:08:46,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2022-07-20 00:08:46,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2337. [2022-07-20 00:08:46,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2337 states, 1767 states have (on average 1.328805885681947) internal successors, (2348), 1809 states have internal predecessors, (2348), 406 states have call successors, (406), 150 states have call predecessors, (406), 163 states have return successors, (463), 399 states have call predecessors, (463), 401 states have call successors, (463) [2022-07-20 00:08:46,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2337 states to 2337 states and 3217 transitions. [2022-07-20 00:08:46,774 INFO L78 Accepts]: Start accepts. Automaton has 2337 states and 3217 transitions. Word has length 98 [2022-07-20 00:08:46,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:08:46,774 INFO L495 AbstractCegarLoop]: Abstraction has 2337 states and 3217 transitions. [2022-07-20 00:08:46,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 00:08:46,775 INFO L276 IsEmpty]: Start isEmpty. Operand 2337 states and 3217 transitions. [2022-07-20 00:08:46,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-20 00:08:46,781 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:08:46,781 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-20 00:08:46,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-20 00:08:46,782 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:08:46,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:08:46,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1237704049, now seen corresponding path program 1 times [2022-07-20 00:08:46,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:08:46,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994378046] [2022-07-20 00:08:46,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:08:46,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:08:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:46,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:08:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:46,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:46,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:46,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:46,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:08:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:46,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:46,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:46,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:46,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:46,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:08:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:46,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:46,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:46,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:47,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:08:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:47,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:08:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:47,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 00:08:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:47,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:47,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:47,054 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-07-20 00:08:47,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:08:47,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994378046] [2022-07-20 00:08:47,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994378046] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:08:47,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:08:47,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:08:47,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142294847] [2022-07-20 00:08:47,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:08:47,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:08:47,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:08:47,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:08:47,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:08:47,057 INFO L87 Difference]: Start difference. First operand 2337 states and 3217 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 00:08:50,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:08:50,344 INFO L93 Difference]: Finished difference Result 2603 states and 3646 transitions. [2022-07-20 00:08:50,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 00:08:50,345 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 99 [2022-07-20 00:08:50,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:08:50,359 INFO L225 Difference]: With dead ends: 2603 [2022-07-20 00:08:50,359 INFO L226 Difference]: Without dead ends: 2600 [2022-07-20 00:08:50,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-20 00:08:50,362 INFO L413 NwaCegarLoop]: 769 mSDtfsCounter, 1306 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1372 SdHoareTripleChecker+Valid, 1460 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 400 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-20 00:08:50,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1372 Valid, 1460 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [400 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-20 00:08:50,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2600 states. [2022-07-20 00:08:50,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2600 to 2336. [2022-07-20 00:08:50,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 1767 states have (on average 1.3282399547255235) internal successors, (2347), 1808 states have internal predecessors, (2347), 405 states have call successors, (405), 150 states have call predecessors, (405), 163 states have return successors, (463), 399 states have call predecessors, (463), 401 states have call successors, (463) [2022-07-20 00:08:50,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 3215 transitions. [2022-07-20 00:08:50,476 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 3215 transitions. Word has length 99 [2022-07-20 00:08:50,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:08:50,480 INFO L495 AbstractCegarLoop]: Abstraction has 2336 states and 3215 transitions. [2022-07-20 00:08:50,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 00:08:50,481 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 3215 transitions. [2022-07-20 00:08:50,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-20 00:08:50,482 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:08:50,483 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-20 00:08:50,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-20 00:08:50,484 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:08:50,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:08:50,484 INFO L85 PathProgramCache]: Analyzing trace with hash -286105886, now seen corresponding path program 1 times [2022-07-20 00:08:50,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:08:50,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030491737] [2022-07-20 00:08:50,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:08:50,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:08:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:50,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:08:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:50,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:50,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:50,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:08:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:50,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:50,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:50,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:08:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:50,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:50,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:50,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:50,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:08:50,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:50,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:08:50,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:50,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 00:08:50,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:50,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:50,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:50,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:50,722 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-07-20 00:08:50,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:08:50,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030491737] [2022-07-20 00:08:50,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030491737] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:08:50,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:08:50,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:08:50,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977442794] [2022-07-20 00:08:50,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:08:50,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:08:50,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:08:50,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:08:50,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:08:50,725 INFO L87 Difference]: Start difference. First operand 2336 states and 3215 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 00:08:54,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:08:54,232 INFO L93 Difference]: Finished difference Result 2602 states and 3644 transitions. [2022-07-20 00:08:54,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 00:08:54,232 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 100 [2022-07-20 00:08:54,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:08:54,248 INFO L225 Difference]: With dead ends: 2602 [2022-07-20 00:08:54,249 INFO L226 Difference]: Without dead ends: 2599 [2022-07-20 00:08:54,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-20 00:08:54,252 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 1145 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1213 SdHoareTripleChecker+Valid, 1725 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-20 00:08:54,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1213 Valid, 1725 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-20 00:08:54,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2599 states. [2022-07-20 00:08:54,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2599 to 2335. [2022-07-20 00:08:54,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 1767 states have (on average 1.3276740237691003) internal successors, (2346), 1807 states have internal predecessors, (2346), 404 states have call successors, (404), 150 states have call predecessors, (404), 163 states have return successors, (463), 399 states have call predecessors, (463), 401 states have call successors, (463) [2022-07-20 00:08:54,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3213 transitions. [2022-07-20 00:08:54,362 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3213 transitions. Word has length 100 [2022-07-20 00:08:54,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:08:54,363 INFO L495 AbstractCegarLoop]: Abstraction has 2335 states and 3213 transitions. [2022-07-20 00:08:54,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 00:08:54,363 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3213 transitions. [2022-07-20 00:08:54,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-20 00:08:54,365 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:08:54,365 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-20 00:08:54,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-20 00:08:54,365 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:08:54,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:08:54,366 INFO L85 PathProgramCache]: Analyzing trace with hash -279568748, now seen corresponding path program 1 times [2022-07-20 00:08:54,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:08:54,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324233354] [2022-07-20 00:08:54,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:08:54,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:08:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:54,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:08:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:54,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:54,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:54,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:08:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:54,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:54,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:54,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:08:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:54,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:54,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:54,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:08:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:54,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:08:54,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:54,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 00:08:54,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:54,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:54,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:54,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:54,567 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-07-20 00:08:54,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:08:54,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324233354] [2022-07-20 00:08:54,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324233354] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:08:54,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:08:54,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:08:54,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105241698] [2022-07-20 00:08:54,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:08:54,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:08:54,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:08:54,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:08:54,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:08:54,569 INFO L87 Difference]: Start difference. First operand 2335 states and 3213 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 00:08:56,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:08:56,505 INFO L93 Difference]: Finished difference Result 2601 states and 3642 transitions. [2022-07-20 00:08:56,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 00:08:56,506 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 101 [2022-07-20 00:08:56,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:08:56,522 INFO L225 Difference]: With dead ends: 2601 [2022-07-20 00:08:56,523 INFO L226 Difference]: Without dead ends: 2598 [2022-07-20 00:08:56,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-20 00:08:56,526 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 1445 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-20 00:08:56,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 1198 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [516 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-20 00:08:56,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2022-07-20 00:08:56,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 2334. [2022-07-20 00:08:56,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2334 states, 1767 states have (on average 1.3271080928126768) internal successors, (2345), 1806 states have internal predecessors, (2345), 403 states have call successors, (403), 150 states have call predecessors, (403), 163 states have return successors, (463), 399 states have call predecessors, (463), 401 states have call successors, (463) [2022-07-20 00:08:56,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2334 states to 2334 states and 3211 transitions. [2022-07-20 00:08:56,640 INFO L78 Accepts]: Start accepts. Automaton has 2334 states and 3211 transitions. Word has length 101 [2022-07-20 00:08:56,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:08:56,641 INFO L495 AbstractCegarLoop]: Abstraction has 2334 states and 3211 transitions. [2022-07-20 00:08:56,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 00:08:56,641 INFO L276 IsEmpty]: Start isEmpty. Operand 2334 states and 3211 transitions. [2022-07-20 00:08:56,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-20 00:08:56,643 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:08:56,644 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-20 00:08:56,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-20 00:08:56,644 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:08:56,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:08:56,645 INFO L85 PathProgramCache]: Analyzing trace with hash -76912603, now seen corresponding path program 1 times [2022-07-20 00:08:56,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:08:56,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290578068] [2022-07-20 00:08:56,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:08:56,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:08:56,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:56,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:08:56,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:56,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:56,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:56,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:56,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:08:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:56,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:56,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:56,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:08:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:56,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:56,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:56,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:56,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:08:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:56,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:08:56,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:56,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 00:08:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:56,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:56,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:56,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:56,875 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-07-20 00:08:56,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:08:56,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290578068] [2022-07-20 00:08:56,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290578068] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:08:56,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:08:56,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:08:56,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961985432] [2022-07-20 00:08:56,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:08:56,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:08:56,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:08:56,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:08:56,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:08:56,878 INFO L87 Difference]: Start difference. First operand 2334 states and 3211 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 00:08:59,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:08:59,135 INFO L93 Difference]: Finished difference Result 2600 states and 3640 transitions. [2022-07-20 00:08:59,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 00:08:59,137 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 102 [2022-07-20 00:08:59,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:08:59,151 INFO L225 Difference]: With dead ends: 2600 [2022-07-20 00:08:59,152 INFO L226 Difference]: Without dead ends: 2588 [2022-07-20 00:08:59,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-20 00:08:59,155 INFO L413 NwaCegarLoop]: 760 mSDtfsCounter, 1300 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-20 00:08:59,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1367 Valid, 1444 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-20 00:08:59,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2588 states. [2022-07-20 00:08:59,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2588 to 2324. [2022-07-20 00:08:59,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2324 states, 1758 states have (on average 1.3270762229806599) internal successors, (2333), 1796 states have internal predecessors, (2333), 402 states have call successors, (402), 150 states have call predecessors, (402), 163 states have return successors, (463), 399 states have call predecessors, (463), 401 states have call successors, (463) [2022-07-20 00:08:59,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2324 states to 2324 states and 3198 transitions. [2022-07-20 00:08:59,273 INFO L78 Accepts]: Start accepts. Automaton has 2324 states and 3198 transitions. Word has length 102 [2022-07-20 00:08:59,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:08:59,274 INFO L495 AbstractCegarLoop]: Abstraction has 2324 states and 3198 transitions. [2022-07-20 00:08:59,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 00:08:59,274 INFO L276 IsEmpty]: Start isEmpty. Operand 2324 states and 3198 transitions. [2022-07-20 00:08:59,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-20 00:08:59,281 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:08:59,281 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 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, 1, 1, 1, 1] [2022-07-20 00:08:59,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-20 00:08:59,281 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:08:59,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:08:59,282 INFO L85 PathProgramCache]: Analyzing trace with hash 757637834, now seen corresponding path program 1 times [2022-07-20 00:08:59,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:08:59,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354861583] [2022-07-20 00:08:59,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:08:59,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:08:59,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:59,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:08:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:59,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:59,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:59,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:08:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:59,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:59,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:59,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:08:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:59,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:59,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:59,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:08:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:59,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:08:59,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:59,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-20 00:08:59,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:59,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:08:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:59,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:59,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 00:08:59,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:59,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 00:08:59,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:59,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:08:59,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:59,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:08:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:59,574 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-07-20 00:08:59,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:08:59,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354861583] [2022-07-20 00:08:59,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354861583] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:08:59,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:08:59,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 00:08:59,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771318216] [2022-07-20 00:08:59,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:08:59,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 00:08:59,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:08:59,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 00:08:59,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-20 00:08:59,578 INFO L87 Difference]: Start difference. First operand 2324 states and 3198 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 7 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-20 00:09:04,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:09:04,589 INFO L93 Difference]: Finished difference Result 7310 states and 10250 transitions. [2022-07-20 00:09:04,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-20 00:09:04,590 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 7 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 139 [2022-07-20 00:09:04,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:09:04,621 INFO L225 Difference]: With dead ends: 7310 [2022-07-20 00:09:04,622 INFO L226 Difference]: Without dead ends: 5004 [2022-07-20 00:09:04,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2022-07-20 00:09:04,634 INFO L413 NwaCegarLoop]: 1158 mSDtfsCounter, 1747 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 978 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1832 SdHoareTripleChecker+Valid, 3505 SdHoareTripleChecker+Invalid, 2458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 978 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-07-20 00:09:04,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1832 Valid, 3505 Invalid, 2458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [978 Valid, 1480 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-07-20 00:09:04,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5004 states. [2022-07-20 00:09:04,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5004 to 4466. [2022-07-20 00:09:04,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4466 states, 3356 states have (on average 1.319725864123957) internal successors, (4429), 3462 states have internal predecessors, (4429), 760 states have call successors, (760), 288 states have call predecessors, (760), 349 states have return successors, (1051), 759 states have call predecessors, (1051), 759 states have call successors, (1051) [2022-07-20 00:09:04,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4466 states to 4466 states and 6240 transitions. [2022-07-20 00:09:04,908 INFO L78 Accepts]: Start accepts. Automaton has 4466 states and 6240 transitions. Word has length 139 [2022-07-20 00:09:04,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:09:04,909 INFO L495 AbstractCegarLoop]: Abstraction has 4466 states and 6240 transitions. [2022-07-20 00:09:04,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 7 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-20 00:09:04,909 INFO L276 IsEmpty]: Start isEmpty. Operand 4466 states and 6240 transitions. [2022-07-20 00:09:04,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-07-20 00:09:04,916 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:09:04,917 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:09:04,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-20 00:09:04,918 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:09:04,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:09:04,918 INFO L85 PathProgramCache]: Analyzing trace with hash -2049391210, now seen corresponding path program 1 times [2022-07-20 00:09:04,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:09:04,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958154682] [2022-07-20 00:09:04,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:09:04,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:09:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:09:05,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:05,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:05,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:09:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:09:05,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:09:05,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:09:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-20 00:09:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:09:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-20 00:09:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-20 00:09:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-20 00:09:05,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-20 00:09:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-20 00:09:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-20 00:09:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 00:09:05,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-20 00:09:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-20 00:09:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-20 00:09:05,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-20 00:09:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-20 00:09:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-20 00:09:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 00:09:05,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 00:09:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-20 00:09:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:05,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:05,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,316 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2022-07-20 00:09:05,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:09:05,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958154682] [2022-07-20 00:09:05,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958154682] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:09:05,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:09:05,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 00:09:05,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672736986] [2022-07-20 00:09:05,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:09:05,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 00:09:05,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:09:05,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 00:09:05,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-20 00:09:05,318 INFO L87 Difference]: Start difference. First operand 4466 states and 6240 transitions. Second operand has 9 states, 9 states have (on average 14.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (27), 8 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-20 00:09:12,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:09:12,542 INFO L93 Difference]: Finished difference Result 13552 states and 19108 transitions. [2022-07-20 00:09:12,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-20 00:09:12,543 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (27), 8 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 254 [2022-07-20 00:09:12,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:09:12,609 INFO L225 Difference]: With dead ends: 13552 [2022-07-20 00:09:12,610 INFO L226 Difference]: Without dead ends: 9114 [2022-07-20 00:09:12,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2022-07-20 00:09:12,630 INFO L413 NwaCegarLoop]: 899 mSDtfsCounter, 2451 mSDsluCounter, 1581 mSDsCounter, 0 mSdLazyCounter, 2669 mSolverCounterSat, 1273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2525 SdHoareTripleChecker+Valid, 2480 SdHoareTripleChecker+Invalid, 3942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1273 IncrementalHoareTripleChecker+Valid, 2669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-07-20 00:09:12,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2525 Valid, 2480 Invalid, 3942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1273 Valid, 2669 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-07-20 00:09:12,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9114 states. [2022-07-20 00:09:13,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9114 to 8104. [2022-07-20 00:09:13,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8104 states, 6104 states have (on average 1.3196264744429882) internal successors, (8055), 6300 states have internal predecessors, (8055), 1344 states have call successors, (1344), 532 states have call predecessors, (1344), 655 states have return successors, (1907), 1355 states have call predecessors, (1907), 1343 states have call successors, (1907) [2022-07-20 00:09:13,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8104 states to 8104 states and 11306 transitions. [2022-07-20 00:09:13,188 INFO L78 Accepts]: Start accepts. Automaton has 8104 states and 11306 transitions. Word has length 254 [2022-07-20 00:09:13,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:09:13,189 INFO L495 AbstractCegarLoop]: Abstraction has 8104 states and 11306 transitions. [2022-07-20 00:09:13,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (27), 8 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-20 00:09:13,190 INFO L276 IsEmpty]: Start isEmpty. Operand 8104 states and 11306 transitions. [2022-07-20 00:09:13,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-07-20 00:09:13,201 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:09:13,201 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:09:13,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-20 00:09:13,202 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:09:13,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:09:13,203 INFO L85 PathProgramCache]: Analyzing trace with hash -66425510, now seen corresponding path program 1 times [2022-07-20 00:09:13,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:09:13,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202191467] [2022-07-20 00:09:13,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:09:13,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:09:13,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:09:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:13,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:09:13,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:09:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:13,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:09:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:09:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 00:09:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:13,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:09:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-20 00:09:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-20 00:09:13,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 00:09:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-20 00:09:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-20 00:09:13,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-20 00:09:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-20 00:09:13,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-20 00:09:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-20 00:09:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-20 00:09:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-20 00:09:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-20 00:09:13,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:13,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-20 00:09:13,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-20 00:09:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-20 00:09:13,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:13,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 00:09:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,722 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-20 00:09:13,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:09:13,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202191467] [2022-07-20 00:09:13,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202191467] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:09:13,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:09:13,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 00:09:13,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456851607] [2022-07-20 00:09:13,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:09:13,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 00:09:13,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:09:13,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 00:09:13,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-20 00:09:13,725 INFO L87 Difference]: Start difference. First operand 8104 states and 11306 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (27), 8 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-20 00:09:21,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:09:21,556 INFO L93 Difference]: Finished difference Result 18474 states and 26457 transitions. [2022-07-20 00:09:21,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-20 00:09:21,557 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (27), 8 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 263 [2022-07-20 00:09:21,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:09:21,609 INFO L225 Difference]: With dead ends: 18474 [2022-07-20 00:09:21,609 INFO L226 Difference]: Without dead ends: 10398 [2022-07-20 00:09:21,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2022-07-20 00:09:21,641 INFO L413 NwaCegarLoop]: 893 mSDtfsCounter, 1193 mSDsluCounter, 2141 mSDsCounter, 0 mSdLazyCounter, 2736 mSolverCounterSat, 644 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 3034 SdHoareTripleChecker+Invalid, 3380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 644 IncrementalHoareTripleChecker+Valid, 2736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-07-20 00:09:21,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1261 Valid, 3034 Invalid, 3380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [644 Valid, 2736 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-07-20 00:09:21,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10398 states. [2022-07-20 00:09:22,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10398 to 8184. [2022-07-20 00:09:22,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8184 states, 6184 states have (on average 1.3232535575679172) internal successors, (8183), 6380 states have internal predecessors, (8183), 1344 states have call successors, (1344), 532 states have call predecessors, (1344), 655 states have return successors, (1907), 1355 states have call predecessors, (1907), 1343 states have call successors, (1907) [2022-07-20 00:09:22,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8184 states to 8184 states and 11434 transitions. [2022-07-20 00:09:22,156 INFO L78 Accepts]: Start accepts. Automaton has 8184 states and 11434 transitions. Word has length 263 [2022-07-20 00:09:22,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:09:22,156 INFO L495 AbstractCegarLoop]: Abstraction has 8184 states and 11434 transitions. [2022-07-20 00:09:22,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (27), 8 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-20 00:09:22,157 INFO L276 IsEmpty]: Start isEmpty. Operand 8184 states and 11434 transitions. [2022-07-20 00:09:22,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-07-20 00:09:22,165 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:09:22,165 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:09:22,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-20 00:09:22,165 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:09:22,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:09:22,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1027086140, now seen corresponding path program 1 times [2022-07-20 00:09:22,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:09:22,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403345362] [2022-07-20 00:09:22,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:09:22,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:09:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:09:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:09:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:22,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:09:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:22,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:09:22,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:09:22,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 00:09:22,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:22,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:09:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-20 00:09:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-20 00:09:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-20 00:09:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 00:09:22,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:09:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-20 00:09:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-20 00:09:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-20 00:09:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-20 00:09:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-20 00:09:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-20 00:09:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-20 00:09:22,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:22,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-20 00:09:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-20 00:09:22,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-20 00:09:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 00:09:22,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:22,645 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2022-07-20 00:09:22,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:09:22,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403345362] [2022-07-20 00:09:22,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403345362] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:09:22,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:09:22,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 00:09:22,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525258496] [2022-07-20 00:09:22,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:09:22,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 00:09:22,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:09:22,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 00:09:22,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-20 00:09:22,648 INFO L87 Difference]: Start difference. First operand 8184 states and 11434 transitions. Second operand has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (27), 8 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-20 00:09:27,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:09:30,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:09:30,105 INFO L93 Difference]: Finished difference Result 18208 states and 25631 transitions. [2022-07-20 00:09:30,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-20 00:09:30,106 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (27), 8 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 270 [2022-07-20 00:09:30,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:09:30,161 INFO L225 Difference]: With dead ends: 18208 [2022-07-20 00:09:30,162 INFO L226 Difference]: Without dead ends: 10052 [2022-07-20 00:09:30,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2022-07-20 00:09:30,193 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 1266 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 2425 mSolverCounterSat, 659 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 2551 SdHoareTripleChecker+Invalid, 3084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 659 IncrementalHoareTripleChecker+Valid, 2425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-07-20 00:09:30,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1321 Valid, 2551 Invalid, 3084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [659 Valid, 2425 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-07-20 00:09:30,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10052 states. [2022-07-20 00:09:30,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10052 to 9004. [2022-07-20 00:09:30,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9004 states, 6870 states have (on average 1.3254730713245997) internal successors, (9106), 7074 states have internal predecessors, (9106), 1422 states have call successors, (1422), 588 states have call predecessors, (1422), 711 states have return successors, (1989), 1425 states have call predecessors, (1989), 1421 states have call successors, (1989) [2022-07-20 00:09:30,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9004 states to 9004 states and 12517 transitions. [2022-07-20 00:09:30,757 INFO L78 Accepts]: Start accepts. Automaton has 9004 states and 12517 transitions. Word has length 270 [2022-07-20 00:09:30,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:09:30,758 INFO L495 AbstractCegarLoop]: Abstraction has 9004 states and 12517 transitions. [2022-07-20 00:09:30,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (27), 8 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-20 00:09:30,759 INFO L276 IsEmpty]: Start isEmpty. Operand 9004 states and 12517 transitions. [2022-07-20 00:09:30,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-07-20 00:09:30,769 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:09:30,770 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:09:30,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-20 00:09:30,770 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:09:30,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:09:30,771 INFO L85 PathProgramCache]: Analyzing trace with hash -314003840, now seen corresponding path program 1 times [2022-07-20 00:09:30,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:09:30,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935502899] [2022-07-20 00:09:30,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:09:30,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:09:30,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:30,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:09:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:30,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:30,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:30,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:30,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:09:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:30,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:30,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:30,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:30,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:09:30,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:30,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:30,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:30,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:09:31,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:09:31,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 00:09:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:31,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:09:31,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-20 00:09:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-20 00:09:31,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-20 00:09:31,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 00:09:31,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:09:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-20 00:09:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-20 00:09:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-20 00:09:31,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-20 00:09:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-20 00:09:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-20 00:09:31,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-20 00:09:31,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-20 00:09:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-20 00:09:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-20 00:09:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 00:09:31,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:31,165 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-07-20 00:09:31,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:09:31,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935502899] [2022-07-20 00:09:31,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935502899] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:09:31,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:09:31,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 00:09:31,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946410610] [2022-07-20 00:09:31,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:09:31,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 00:09:31,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:09:31,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 00:09:31,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-20 00:09:31,169 INFO L87 Difference]: Start difference. First operand 9004 states and 12517 transitions. Second operand has 9 states, 9 states have (on average 17.22222222222222) internal successors, (155), 3 states have internal predecessors, (155), 2 states have call successors, (27), 8 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-20 00:09:34,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:09:35,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:09:37,970 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:09:41,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:09:41,456 INFO L93 Difference]: Finished difference Result 23292 states and 32625 transitions. [2022-07-20 00:09:41,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-20 00:09:41,457 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.22222222222222) internal successors, (155), 3 states have internal predecessors, (155), 2 states have call successors, (27), 8 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 284 [2022-07-20 00:09:41,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:09:41,526 INFO L225 Difference]: With dead ends: 23292 [2022-07-20 00:09:41,526 INFO L226 Difference]: Without dead ends: 14316 [2022-07-20 00:09:41,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-20 00:09:41,555 INFO L413 NwaCegarLoop]: 1009 mSDtfsCounter, 2495 mSDsluCounter, 1448 mSDsCounter, 0 mSdLazyCounter, 2454 mSolverCounterSat, 1420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2562 SdHoareTripleChecker+Valid, 2457 SdHoareTripleChecker+Invalid, 3874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1420 IncrementalHoareTripleChecker+Valid, 2454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-07-20 00:09:41,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2562 Valid, 2457 Invalid, 3874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1420 Valid, 2454 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2022-07-20 00:09:41,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14316 states. [2022-07-20 00:09:42,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14316 to 12664. [2022-07-20 00:09:42,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12664 states, 9704 states have (on average 1.3236809563066776) internal successors, (12845), 9984 states have internal predecessors, (12845), 1940 states have call successors, (1940), 852 states have call predecessors, (1940), 1019 states have return successors, (2769), 1939 states have call predecessors, (2769), 1939 states have call successors, (2769) [2022-07-20 00:09:42,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12664 states to 12664 states and 17554 transitions. [2022-07-20 00:09:42,289 INFO L78 Accepts]: Start accepts. Automaton has 12664 states and 17554 transitions. Word has length 284 [2022-07-20 00:09:42,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:09:42,290 INFO L495 AbstractCegarLoop]: Abstraction has 12664 states and 17554 transitions. [2022-07-20 00:09:42,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.22222222222222) internal successors, (155), 3 states have internal predecessors, (155), 2 states have call successors, (27), 8 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-20 00:09:42,291 INFO L276 IsEmpty]: Start isEmpty. Operand 12664 states and 17554 transitions. [2022-07-20 00:09:42,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-07-20 00:09:42,303 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:09:42,303 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:09:42,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-20 00:09:42,304 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:09:42,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:09:42,304 INFO L85 PathProgramCache]: Analyzing trace with hash 685858229, now seen corresponding path program 1 times [2022-07-20 00:09:42,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:09:42,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833974761] [2022-07-20 00:09:42,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:09:42,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:09:42,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:09:42,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:09:42,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:42,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:09:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:09:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:09:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 00:09:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:42,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:09:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-20 00:09:42,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-20 00:09:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-20 00:09:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 00:09:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:09:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-20 00:09:42,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-20 00:09:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-20 00:09:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-20 00:09:42,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-20 00:09:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-20 00:09:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-20 00:09:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:42,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-20 00:09:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-20 00:09:42,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-20 00:09:42,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-07-20 00:09:42,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-20 00:09:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 00:09:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:42,910 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 22 proven. 22 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2022-07-20 00:09:42,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:09:42,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833974761] [2022-07-20 00:09:42,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833974761] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 00:09:42,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124013099] [2022-07-20 00:09:42,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:09:42,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 00:09:42,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 00:09:42,915 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) [2022-07-20 00:09:42,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-20 00:09:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:43,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 2582 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 00:09:43,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:09:43,995 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-07-20 00:09:43,996 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:09:43,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124013099] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:09:43,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 00:09:43,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 12 [2022-07-20 00:09:43,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314550025] [2022-07-20 00:09:43,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:09:43,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 00:09:43,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:09:43,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 00:09:43,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-20 00:09:43,999 INFO L87 Difference]: Start difference. First operand 12664 states and 17554 transitions. Second operand has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 4 states have call successors, (31), 4 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-07-20 00:09:46,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:09:46,822 INFO L93 Difference]: Finished difference Result 50571 states and 70115 transitions. [2022-07-20 00:09:46,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 00:09:46,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 4 states have call successors, (31), 4 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 307 [2022-07-20 00:09:46,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:09:47,047 INFO L225 Difference]: With dead ends: 50571 [2022-07-20 00:09:47,048 INFO L226 Difference]: Without dead ends: 50563 [2022-07-20 00:09:47,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-20 00:09:47,075 INFO L413 NwaCegarLoop]: 1472 mSDtfsCounter, 2495 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2495 SdHoareTripleChecker+Valid, 3909 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-20 00:09:47,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2495 Valid, 3909 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-20 00:09:47,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50563 states. [2022-07-20 00:09:49,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50563 to 50516. [2022-07-20 00:09:49,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50516 states, 38712 states have (on average 1.3240597230832816) internal successors, (51257), 39848 states have internal predecessors, (51257), 7736 states have call successors, (7736), 3396 states have call predecessors, (7736), 4067 states have return successors, (11055), 7719 states have call predecessors, (11055), 7735 states have call successors, (11055) [2022-07-20 00:09:49,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50516 states to 50516 states and 70048 transitions. [2022-07-20 00:09:49,497 INFO L78 Accepts]: Start accepts. Automaton has 50516 states and 70048 transitions. Word has length 307 [2022-07-20 00:09:49,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:09:49,498 INFO L495 AbstractCegarLoop]: Abstraction has 50516 states and 70048 transitions. [2022-07-20 00:09:49,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 4 states have call successors, (31), 4 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-07-20 00:09:49,498 INFO L276 IsEmpty]: Start isEmpty. Operand 50516 states and 70048 transitions. [2022-07-20 00:09:49,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2022-07-20 00:09:49,552 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:09:49,553 INFO L195 NwaCegarLoop]: trace histogram [7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:09:49,583 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-20 00:09:49,779 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,SelfDestructingSolverStorable13 [2022-07-20 00:09:49,780 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:09:49,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:09:49,780 INFO L85 PathProgramCache]: Analyzing trace with hash -82220245, now seen corresponding path program 1 times [2022-07-20 00:09:49,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:09:49,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326124527] [2022-07-20 00:09:49,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:09:49,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:09:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:49,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:09:49,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:49,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:49,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:49,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:09:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:49,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:49,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:49,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:09:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:49,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:49,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:09:50,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:09:50,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 00:09:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-20 00:09:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 00:09:50,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-20 00:09:50,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-20 00:09:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-20 00:09:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-20 00:09:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-20 00:09:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-20 00:09:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-20 00:09:50,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-20 00:09:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-20 00:09:50,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-20 00:09:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-20 00:09:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-20 00:09:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:50,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:09:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-20 00:09:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-20 00:09:50,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-07-20 00:09:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-07-20 00:09:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-20 00:09:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:09:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 00:09:50,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:50,188 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2022-07-20 00:09:50,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:09:50,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326124527] [2022-07-20 00:09:50,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326124527] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:09:50,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:09:50,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-20 00:09:50,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719803366] [2022-07-20 00:09:50,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:09:50,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-20 00:09:50,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:09:50,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-20 00:09:50,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-20 00:09:50,193 INFO L87 Difference]: Start difference. First operand 50516 states and 70048 transitions. Second operand has 10 states, 10 states have (on average 16.5) internal successors, (165), 3 states have internal predecessors, (165), 3 states have call successors, (30), 9 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-07-20 00:09:54,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:09:59,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:09:59,861 INFO L93 Difference]: Finished difference Result 80953 states and 112605 transitions. [2022-07-20 00:09:59,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-20 00:09:59,862 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.5) internal successors, (165), 3 states have internal predecessors, (165), 3 states have call successors, (30), 9 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 321 [2022-07-20 00:09:59,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:10:00,015 INFO L225 Difference]: With dead ends: 80953 [2022-07-20 00:10:00,015 INFO L226 Difference]: Without dead ends: 30465 [2022-07-20 00:10:00,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2022-07-20 00:10:00,134 INFO L413 NwaCegarLoop]: 1245 mSDtfsCounter, 2400 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 2823 mSolverCounterSat, 1411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2490 SdHoareTripleChecker+Valid, 2630 SdHoareTripleChecker+Invalid, 4234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1411 IncrementalHoareTripleChecker+Valid, 2823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-07-20 00:10:00,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2490 Valid, 2630 Invalid, 4234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1411 Valid, 2823 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2022-07-20 00:10:00,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30465 states. [2022-07-20 00:10:01,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30465 to 27010. [2022-07-20 00:10:01,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27010 states, 20901 states have (on average 1.323525190182288) internal successors, (27663), 21461 states have internal predecessors, (27663), 3984 states have call successors, (3984), 1785 states have call predecessors, (3984), 2124 states have return successors, (5635), 3991 states have call predecessors, (5635), 3983 states have call successors, (5635) [2022-07-20 00:10:01,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27010 states to 27010 states and 37282 transitions. [2022-07-20 00:10:01,544 INFO L78 Accepts]: Start accepts. Automaton has 27010 states and 37282 transitions. Word has length 321 [2022-07-20 00:10:01,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:10:01,544 INFO L495 AbstractCegarLoop]: Abstraction has 27010 states and 37282 transitions. [2022-07-20 00:10:01,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.5) internal successors, (165), 3 states have internal predecessors, (165), 3 states have call successors, (30), 9 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-07-20 00:10:01,544 INFO L276 IsEmpty]: Start isEmpty. Operand 27010 states and 37282 transitions. [2022-07-20 00:10:01,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2022-07-20 00:10:01,573 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:10:01,573 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:10:01,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-20 00:10:01,574 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:10:01,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:10:01,574 INFO L85 PathProgramCache]: Analyzing trace with hash 159798256, now seen corresponding path program 1 times [2022-07-20 00:10:01,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:10:01,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70810901] [2022-07-20 00:10:01,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:10:01,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:10:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:10:01,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:01,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:01,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:10:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:01,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:01,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:10:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:01,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:10:01,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:10:01,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 00:10:01,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:01,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:10:01,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-20 00:10:01,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-20 00:10:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-20 00:10:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 00:10:01,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:10:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-20 00:10:01,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-20 00:10:01,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-20 00:10:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-20 00:10:01,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-20 00:10:01,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-20 00:10:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-20 00:10:01,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:01,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-20 00:10:01,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-20 00:10:01,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-20 00:10:01,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-07-20 00:10:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-20 00:10:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:01,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 00:10:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:01,960 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-07-20 00:10:01,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:10:01,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70810901] [2022-07-20 00:10:01,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70810901] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:10:01,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:10:01,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-20 00:10:01,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864778196] [2022-07-20 00:10:01,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:10:01,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-20 00:10:01,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:10:01,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-20 00:10:01,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-20 00:10:01,963 INFO L87 Difference]: Start difference. First operand 27010 states and 37282 transitions. Second operand has 10 states, 10 states have (on average 15.7) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (29), 8 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-20 00:10:07,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:10:13,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:10:13,453 INFO L93 Difference]: Finished difference Result 78524 states and 110040 transitions. [2022-07-20 00:10:13,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-20 00:10:13,454 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.7) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (29), 8 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 321 [2022-07-20 00:10:13,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:10:13,693 INFO L225 Difference]: With dead ends: 78524 [2022-07-20 00:10:13,693 INFO L226 Difference]: Without dead ends: 51560 [2022-07-20 00:10:13,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2022-07-20 00:10:13,750 INFO L413 NwaCegarLoop]: 821 mSDtfsCounter, 3036 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 3563 mSolverCounterSat, 1640 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3136 SdHoareTripleChecker+Valid, 2547 SdHoareTripleChecker+Invalid, 5203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1640 IncrementalHoareTripleChecker+Valid, 3563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-07-20 00:10:13,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3136 Valid, 2547 Invalid, 5203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1640 Valid, 3563 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-07-20 00:10:13,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51560 states. [2022-07-20 00:10:15,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51560 to 26998. [2022-07-20 00:10:15,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26998 states, 20897 states have (on average 1.3233957027324497) internal successors, (27655), 21457 states have internal predecessors, (27655), 3980 states have call successors, (3980), 1781 states have call predecessors, (3980), 2120 states have return successors, (5631), 3987 states have call predecessors, (5631), 3979 states have call successors, (5631) [2022-07-20 00:10:15,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26998 states to 26998 states and 37266 transitions. [2022-07-20 00:10:15,487 INFO L78 Accepts]: Start accepts. Automaton has 26998 states and 37266 transitions. Word has length 321 [2022-07-20 00:10:15,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:10:15,488 INFO L495 AbstractCegarLoop]: Abstraction has 26998 states and 37266 transitions. [2022-07-20 00:10:15,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.7) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (29), 8 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-20 00:10:15,488 INFO L276 IsEmpty]: Start isEmpty. Operand 26998 states and 37266 transitions. [2022-07-20 00:10:15,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-07-20 00:10:15,509 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:10:15,509 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:10:15,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-20 00:10:15,510 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:10:15,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:10:15,510 INFO L85 PathProgramCache]: Analyzing trace with hash 552359516, now seen corresponding path program 1 times [2022-07-20 00:10:15,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:10:15,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793413729] [2022-07-20 00:10:15,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:10:15,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:10:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:10:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:10:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:10:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:10:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:10:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 00:10:15,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:10:15,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-20 00:10:15,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-20 00:10:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-20 00:10:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 00:10:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:10:15,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-20 00:10:15,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-20 00:10:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-20 00:10:15,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-20 00:10:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-20 00:10:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-20 00:10:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-20 00:10:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:15,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:15,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-20 00:10:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-20 00:10:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-20 00:10:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-07-20 00:10:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-20 00:10:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 00:10:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-20 00:10:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:15,960 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-07-20 00:10:15,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:10:15,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793413729] [2022-07-20 00:10:15,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793413729] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:10:15,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:10:15,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 00:10:15,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412019172] [2022-07-20 00:10:15,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:10:15,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 00:10:15,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:10:15,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 00:10:15,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-20 00:10:15,964 INFO L87 Difference]: Start difference. First operand 26998 states and 37266 transitions. Second operand has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 3 states have internal predecessors, (158), 3 states have call successors, (30), 8 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-07-20 00:10:19,003 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:10:24,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:10:24,390 INFO L93 Difference]: Finished difference Result 57138 states and 79359 transitions. [2022-07-20 00:10:24,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-20 00:10:24,391 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 3 states have internal predecessors, (158), 3 states have call successors, (30), 8 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 327 [2022-07-20 00:10:24,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:10:24,514 INFO L225 Difference]: With dead ends: 57138 [2022-07-20 00:10:24,514 INFO L226 Difference]: Without dead ends: 26957 [2022-07-20 00:10:24,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-20 00:10:24,583 INFO L413 NwaCegarLoop]: 1331 mSDtfsCounter, 2164 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 2223 mSolverCounterSat, 1378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2234 SdHoareTripleChecker+Valid, 2608 SdHoareTripleChecker+Invalid, 3601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1378 IncrementalHoareTripleChecker+Valid, 2223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-07-20 00:10:24,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2234 Valid, 2608 Invalid, 3601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1378 Valid, 2223 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-07-20 00:10:24,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26957 states. [2022-07-20 00:10:25,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26957 to 24164. [2022-07-20 00:10:25,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24164 states, 18698 states have (on average 1.3190180767996578) internal successors, (24663), 19196 states have internal predecessors, (24663), 3575 states have call successors, (3575), 1593 states have call predecessors, (3575), 1890 states have return successors, (5027), 3575 states have call predecessors, (5027), 3574 states have call successors, (5027) [2022-07-20 00:10:25,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24164 states to 24164 states and 33265 transitions. [2022-07-20 00:10:25,873 INFO L78 Accepts]: Start accepts. Automaton has 24164 states and 33265 transitions. Word has length 327 [2022-07-20 00:10:25,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:10:25,874 INFO L495 AbstractCegarLoop]: Abstraction has 24164 states and 33265 transitions. [2022-07-20 00:10:25,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 3 states have internal predecessors, (158), 3 states have call successors, (30), 8 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-07-20 00:10:25,874 INFO L276 IsEmpty]: Start isEmpty. Operand 24164 states and 33265 transitions. [2022-07-20 00:10:25,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-07-20 00:10:25,895 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:10:25,896 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:10:25,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-20 00:10:25,896 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:10:25,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:10:25,897 INFO L85 PathProgramCache]: Analyzing trace with hash -563608610, now seen corresponding path program 1 times [2022-07-20 00:10:25,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:10:25,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101705138] [2022-07-20 00:10:25,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:10:25,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:10:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:10:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:26,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:10:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:26,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:26,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:10:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:10:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:10:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 00:10:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:26,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:10:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-20 00:10:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-20 00:10:26,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-20 00:10:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 00:10:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:10:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-20 00:10:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-20 00:10:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-20 00:10:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-20 00:10:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-20 00:10:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-20 00:10:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-20 00:10:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-20 00:10:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-20 00:10:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-20 00:10:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-07-20 00:10:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-20 00:10:26,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:26,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 00:10:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-20 00:10:26,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:26,222 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-07-20 00:10:26,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:10:26,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101705138] [2022-07-20 00:10:26,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101705138] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:10:26,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:10:26,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 00:10:26,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845608855] [2022-07-20 00:10:26,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:10:26,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 00:10:26,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:10:26,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 00:10:26,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-20 00:10:26,226 INFO L87 Difference]: Start difference. First operand 24164 states and 33265 transitions. Second operand has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 3 states have internal predecessors, (158), 2 states have call successors, (30), 8 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-20 00:10:29,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:10:29,893 INFO L93 Difference]: Finished difference Result 35887 states and 49616 transitions. [2022-07-20 00:10:29,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-20 00:10:29,894 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 3 states have internal predecessors, (158), 2 states have call successors, (30), 8 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 327 [2022-07-20 00:10:29,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:10:29,944 INFO L225 Difference]: With dead ends: 35887 [2022-07-20 00:10:29,945 INFO L226 Difference]: Without dead ends: 11768 [2022-07-20 00:10:30,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2022-07-20 00:10:30,002 INFO L413 NwaCegarLoop]: 718 mSDtfsCounter, 1529 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 926 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1563 SdHoareTripleChecker+Valid, 1579 SdHoareTripleChecker+Invalid, 2349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 926 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-20 00:10:30,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1563 Valid, 1579 Invalid, 2349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [926 Valid, 1423 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-20 00:10:30,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11768 states. [2022-07-20 00:10:30,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11768 to 10567. [2022-07-20 00:10:30,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10567 states, 8177 states have (on average 1.3202886144062616) internal successors, (10796), 8395 states have internal predecessors, (10796), 1568 states have call successors, (1568), 694 states have call predecessors, (1568), 821 states have return successors, (2194), 1564 states have call predecessors, (2194), 1567 states have call successors, (2194) [2022-07-20 00:10:30,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10567 states to 10567 states and 14558 transitions. [2022-07-20 00:10:30,688 INFO L78 Accepts]: Start accepts. Automaton has 10567 states and 14558 transitions. Word has length 327 [2022-07-20 00:10:30,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:10:30,689 INFO L495 AbstractCegarLoop]: Abstraction has 10567 states and 14558 transitions. [2022-07-20 00:10:30,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 3 states have internal predecessors, (158), 2 states have call successors, (30), 8 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-20 00:10:30,689 INFO L276 IsEmpty]: Start isEmpty. Operand 10567 states and 14558 transitions. [2022-07-20 00:10:30,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2022-07-20 00:10:30,699 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:10:30,699 INFO L195 NwaCegarLoop]: trace histogram [8, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:10:30,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-20 00:10:30,699 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:10:30,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:10:30,700 INFO L85 PathProgramCache]: Analyzing trace with hash 740851496, now seen corresponding path program 1 times [2022-07-20 00:10:30,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:10:30,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698309849] [2022-07-20 00:10:30,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:10:30,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:10:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:30,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:10:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:30,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:30,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:30,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:30,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:10:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:30,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:30,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:30,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:30,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:30,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:10:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:30,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:30,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:30,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:10:30,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:30,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:10:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:30,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 00:10:30,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:30,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:30,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:30,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:30,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:10:30,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:30,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-20 00:10:31,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:31,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-20 00:10:31,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:31,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-20 00:10:31,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:31,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 00:10:31,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:31,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:10:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:31,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-20 00:10:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:31,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-20 00:10:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:31,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-20 00:10:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:31,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-20 00:10:31,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:31,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-20 00:10:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:31,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-20 00:10:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:31,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-20 00:10:31,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:31,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:31,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:31,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:31,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:31,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-20 00:10:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:31,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-20 00:10:31,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:31,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-20 00:10:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:31,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-07-20 00:10:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:31,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-07-20 00:10:31,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:31,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-20 00:10:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:31,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:31,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:31,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 00:10:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:31,121 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-07-20 00:10:31,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:10:31,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698309849] [2022-07-20 00:10:31,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698309849] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:10:31,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:10:31,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-20 00:10:31,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106668317] [2022-07-20 00:10:31,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:10:31,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-20 00:10:31,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:10:31,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-20 00:10:31,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-20 00:10:31,125 INFO L87 Difference]: Start difference. First operand 10567 states and 14558 transitions. Second operand has 10 states, 10 states have (on average 17.6) internal successors, (176), 3 states have internal predecessors, (176), 2 states have call successors, (30), 9 states have call predecessors, (30), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2022-07-20 00:10:37,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:10:42,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:10:42,152 INFO L93 Difference]: Finished difference Result 22350 states and 30974 transitions. [2022-07-20 00:10:42,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-20 00:10:42,153 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.6) internal successors, (176), 3 states have internal predecessors, (176), 2 states have call successors, (30), 9 states have call predecessors, (30), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 335 [2022-07-20 00:10:42,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:10:42,183 INFO L225 Difference]: With dead ends: 22350 [2022-07-20 00:10:42,183 INFO L226 Difference]: Without dead ends: 11852 [2022-07-20 00:10:42,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2022-07-20 00:10:42,199 INFO L413 NwaCegarLoop]: 1186 mSDtfsCounter, 1769 mSDsluCounter, 1583 mSDsCounter, 0 mSdLazyCounter, 3557 mSolverCounterSat, 1080 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1838 SdHoareTripleChecker+Valid, 2769 SdHoareTripleChecker+Invalid, 4637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1080 IncrementalHoareTripleChecker+Valid, 3557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-07-20 00:10:42,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1838 Valid, 2769 Invalid, 4637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1080 Valid, 3557 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2022-07-20 00:10:42,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11852 states. [2022-07-20 00:10:42,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11852 to 10567. [2022-07-20 00:10:42,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10567 states, 8177 states have (on average 1.3122171945701357) internal successors, (10730), 8395 states have internal predecessors, (10730), 1568 states have call successors, (1568), 694 states have call predecessors, (1568), 821 states have return successors, (2194), 1564 states have call predecessors, (2194), 1567 states have call successors, (2194) [2022-07-20 00:10:42,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10567 states to 10567 states and 14492 transitions. [2022-07-20 00:10:42,667 INFO L78 Accepts]: Start accepts. Automaton has 10567 states and 14492 transitions. Word has length 335 [2022-07-20 00:10:42,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:10:42,667 INFO L495 AbstractCegarLoop]: Abstraction has 10567 states and 14492 transitions. [2022-07-20 00:10:42,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.6) internal successors, (176), 3 states have internal predecessors, (176), 2 states have call successors, (30), 9 states have call predecessors, (30), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2022-07-20 00:10:42,668 INFO L276 IsEmpty]: Start isEmpty. Operand 10567 states and 14492 transitions. [2022-07-20 00:10:42,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-07-20 00:10:42,679 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:10:42,679 INFO L195 NwaCegarLoop]: trace histogram [7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:10:42,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-20 00:10:42,679 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:10:42,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:10:42,680 INFO L85 PathProgramCache]: Analyzing trace with hash 384172711, now seen corresponding path program 1 times [2022-07-20 00:10:42,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:10:42,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825951516] [2022-07-20 00:10:42,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:10:42,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:10:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:42,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:10:42,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:42,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:42,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:42,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:42,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:10:42,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:42,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:42,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:42,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:10:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:42,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:42,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:42,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:10:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:42,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:10:42,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:42,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 00:10:42,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:42,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:42,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:42,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:42,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:10:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:42,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-20 00:10:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:42,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-20 00:10:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:42,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-20 00:10:42,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:42,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 00:10:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:43,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:10:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:43,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-20 00:10:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:43,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-20 00:10:43,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:43,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-20 00:10:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:43,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-20 00:10:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:43,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-20 00:10:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:43,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-20 00:10:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:43,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-20 00:10:43,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:43,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:43,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:43,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:43,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-20 00:10:43,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:43,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-20 00:10:43,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:43,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-20 00:10:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:43,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-07-20 00:10:43,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:43,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-20 00:10:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:43,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:43,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:43,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 00:10:43,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:43,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-07-20 00:10:43,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:43,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:43,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:43,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:43,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:43,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:43,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:43,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:43,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-20 00:10:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:43,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-20 00:10:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:43,256 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2022-07-20 00:10:43,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:10:43,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825951516] [2022-07-20 00:10:43,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825951516] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:10:43,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:10:43,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-07-20 00:10:43,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256892502] [2022-07-20 00:10:43,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:10:43,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-20 00:10:43,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:10:43,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-20 00:10:43,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-07-20 00:10:43,259 INFO L87 Difference]: Start difference. First operand 10567 states and 14492 transitions. Second operand has 16 states, 15 states have (on average 12.533333333333333) internal successors, (188), 6 states have internal predecessors, (188), 3 states have call successors, (36), 10 states have call predecessors, (36), 3 states have return successors, (35), 4 states have call predecessors, (35), 3 states have call successors, (35) [2022-07-20 00:10:52,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:10:52,761 INFO L93 Difference]: Finished difference Result 22473 states and 31094 transitions. [2022-07-20 00:10:52,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-20 00:10:52,762 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 12.533333333333333) internal successors, (188), 6 states have internal predecessors, (188), 3 states have call successors, (36), 10 states have call predecessors, (36), 3 states have return successors, (35), 4 states have call predecessors, (35), 3 states have call successors, (35) Word has length 356 [2022-07-20 00:10:52,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:10:52,820 INFO L225 Difference]: With dead ends: 22473 [2022-07-20 00:10:52,820 INFO L226 Difference]: Without dead ends: 11975 [2022-07-20 00:10:52,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=235, Invalid=635, Unknown=0, NotChecked=0, Total=870 [2022-07-20 00:10:52,844 INFO L413 NwaCegarLoop]: 717 mSDtfsCounter, 1367 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 5163 mSolverCounterSat, 801 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 3278 SdHoareTripleChecker+Invalid, 5964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 801 IncrementalHoareTripleChecker+Valid, 5163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-07-20 00:10:52,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1401 Valid, 3278 Invalid, 5964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [801 Valid, 5163 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-07-20 00:10:52,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11975 states. [2022-07-20 00:10:53,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11975 to 10558. [2022-07-20 00:10:53,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10558 states, 8168 states have (on average 1.3103574926542605) internal successors, (10703), 8386 states have internal predecessors, (10703), 1577 states have call successors, (1577), 694 states have call predecessors, (1577), 812 states have return successors, (2149), 1564 states have call predecessors, (2149), 1576 states have call successors, (2149) [2022-07-20 00:10:53,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10558 states to 10558 states and 14429 transitions. [2022-07-20 00:10:53,405 INFO L78 Accepts]: Start accepts. Automaton has 10558 states and 14429 transitions. Word has length 356 [2022-07-20 00:10:53,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:10:53,406 INFO L495 AbstractCegarLoop]: Abstraction has 10558 states and 14429 transitions. [2022-07-20 00:10:53,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 12.533333333333333) internal successors, (188), 6 states have internal predecessors, (188), 3 states have call successors, (36), 10 states have call predecessors, (36), 3 states have return successors, (35), 4 states have call predecessors, (35), 3 states have call successors, (35) [2022-07-20 00:10:53,406 INFO L276 IsEmpty]: Start isEmpty. Operand 10558 states and 14429 transitions. [2022-07-20 00:10:53,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2022-07-20 00:10:53,416 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:10:53,417 INFO L195 NwaCegarLoop]: trace histogram [7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:10:53,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-20 00:10:53,417 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:10:53,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:10:53,417 INFO L85 PathProgramCache]: Analyzing trace with hash 275925875, now seen corresponding path program 1 times [2022-07-20 00:10:53,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:10:53,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388354743] [2022-07-20 00:10:53,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:10:53,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:10:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:10:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:10:53,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:53,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:10:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:53,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:10:53,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:10:53,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 00:10:53,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:53,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:53,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:10:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-20 00:10:53,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-20 00:10:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-20 00:10:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 00:10:53,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:10:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-20 00:10:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-20 00:10:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-20 00:10:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-20 00:10:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-20 00:10:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-20 00:10:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-20 00:10:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-20 00:10:53,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-20 00:10:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-20 00:10:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-07-20 00:10:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-20 00:10:53,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 00:10:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-07-20 00:10:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:53,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-20 00:10:53,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-20 00:10:53,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:53,931 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 28 proven. 6 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-07-20 00:10:53,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:10:53,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388354743] [2022-07-20 00:10:53,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388354743] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 00:10:53,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042907584] [2022-07-20 00:10:53,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:10:53,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 00:10:53,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 00:10:53,935 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) [2022-07-20 00:10:53,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-20 00:10:54,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:54,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 2799 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-20 00:10:54,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:10:54,900 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-20 00:10:54,900 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:10:54,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042907584] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:10:54,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 00:10:54,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2022-07-20 00:10:54,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392801846] [2022-07-20 00:10:54,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:10:54,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 00:10:54,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:10:54,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 00:10:54,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-07-20 00:10:54,903 INFO L87 Difference]: Start difference. First operand 10558 states and 14429 transitions. Second operand has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-07-20 00:10:56,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:10:56,137 INFO L93 Difference]: Finished difference Result 24175 states and 33528 transitions. [2022-07-20 00:10:56,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 00:10:56,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 357 [2022-07-20 00:10:56,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:10:56,186 INFO L225 Difference]: With dead ends: 24175 [2022-07-20 00:10:56,186 INFO L226 Difference]: Without dead ends: 13686 [2022-07-20 00:10:56,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-07-20 00:10:56,218 INFO L413 NwaCegarLoop]: 995 mSDtfsCounter, 976 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 2559 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-20 00:10:56,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 2559 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-20 00:10:56,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13686 states. [2022-07-20 00:10:56,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13686 to 10582. [2022-07-20 00:10:56,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10582 states, 8192 states have (on average 1.3094482421875) internal successors, (10727), 8410 states have internal predecessors, (10727), 1577 states have call successors, (1577), 694 states have call predecessors, (1577), 812 states have return successors, (2149), 1564 states have call predecessors, (2149), 1576 states have call successors, (2149) [2022-07-20 00:10:56,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10582 states to 10582 states and 14453 transitions. [2022-07-20 00:10:56,872 INFO L78 Accepts]: Start accepts. Automaton has 10582 states and 14453 transitions. Word has length 357 [2022-07-20 00:10:56,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:10:56,872 INFO L495 AbstractCegarLoop]: Abstraction has 10582 states and 14453 transitions. [2022-07-20 00:10:56,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-07-20 00:10:56,873 INFO L276 IsEmpty]: Start isEmpty. Operand 10582 states and 14453 transitions. [2022-07-20 00:10:56,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2022-07-20 00:10:56,887 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:10:56,887 INFO L195 NwaCegarLoop]: trace histogram [7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:10:56,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-20 00:10:57,087 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,SelfDestructingSolverStorable20 [2022-07-20 00:10:57,088 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:10:57,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:10:57,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1441591948, now seen corresponding path program 1 times [2022-07-20 00:10:57,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:10:57,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040752475] [2022-07-20 00:10:57,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:10:57,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:10:57,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:10:57,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:57,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:10:57,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:10:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:10:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:10:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 00:10:57,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:10:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-20 00:10:57,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-20 00:10:57,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-20 00:10:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 00:10:57,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:10:57,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-20 00:10:57,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-20 00:10:57,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-20 00:10:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-20 00:10:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-20 00:10:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-20 00:10:57,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-20 00:10:57,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-20 00:10:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-20 00:10:57,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-20 00:10:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-07-20 00:10:57,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-20 00:10:57,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 00:10:57,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-07-20 00:10:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:10:57,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:10:57,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-20 00:10:57,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-20 00:10:57,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:57,574 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 28 proven. 6 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-07-20 00:10:57,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:10:57,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040752475] [2022-07-20 00:10:57,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040752475] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 00:10:57,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050979785] [2022-07-20 00:10:57,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:10:57,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 00:10:57,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 00:10:57,577 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) [2022-07-20 00:10:57,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-20 00:10:58,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:58,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 2808 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-20 00:10:58,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:10:58,597 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-07-20 00:10:58,598 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:10:58,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050979785] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:10:58,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 00:10:58,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 13 [2022-07-20 00:10:58,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375164704] [2022-07-20 00:10:58,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:10:58,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 00:10:58,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:10:58,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 00:10:58,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-07-20 00:10:58,600 INFO L87 Difference]: Start difference. First operand 10582 states and 14453 transitions. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 2 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) [2022-07-20 00:10:59,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:10:59,367 INFO L93 Difference]: Finished difference Result 21187 states and 29026 transitions. [2022-07-20 00:10:59,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 00:10:59,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 2 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) Word has length 361 [2022-07-20 00:10:59,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:10:59,414 INFO L225 Difference]: With dead ends: 21187 [2022-07-20 00:10:59,414 INFO L226 Difference]: Without dead ends: 10634 [2022-07-20 00:10:59,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 439 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-07-20 00:10:59,447 INFO L413 NwaCegarLoop]: 787 mSDtfsCounter, 0 mSDsluCounter, 2348 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3135 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 00:10:59,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3135 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 00:10:59,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10634 states. [2022-07-20 00:11:00,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10634 to 10622. [2022-07-20 00:11:00,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10622 states, 8212 states have (on average 1.3086945932781295) internal successors, (10747), 8450 states have internal predecessors, (10747), 1577 states have call successors, (1577), 694 states have call predecessors, (1577), 832 states have return successors, (2237), 1564 states have call predecessors, (2237), 1576 states have call successors, (2237) [2022-07-20 00:11:00,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10622 states to 10622 states and 14561 transitions. [2022-07-20 00:11:00,251 INFO L78 Accepts]: Start accepts. Automaton has 10622 states and 14561 transitions. Word has length 361 [2022-07-20 00:11:00,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:11:00,251 INFO L495 AbstractCegarLoop]: Abstraction has 10622 states and 14561 transitions. [2022-07-20 00:11:00,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 2 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) [2022-07-20 00:11:00,252 INFO L276 IsEmpty]: Start isEmpty. Operand 10622 states and 14561 transitions. [2022-07-20 00:11:00,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2022-07-20 00:11:00,270 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:11:00,270 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:11:00,303 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-20 00:11:00,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 00:11:00,496 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:11:00,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:11:00,496 INFO L85 PathProgramCache]: Analyzing trace with hash -871300583, now seen corresponding path program 1 times [2022-07-20 00:11:00,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:11:00,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293378703] [2022-07-20 00:11:00,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:11:00,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:11:00,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:11:00,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:00,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:00,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:11:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:00,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:11:00,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:11:00,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:11:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 00:11:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:11:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:11:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-20 00:11:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-20 00:11:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-20 00:11:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-20 00:11:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-20 00:11:00,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-20 00:11:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-20 00:11:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-20 00:11:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-20 00:11:00,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-20 00:11:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-07-20 00:11:00,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-20 00:11:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-20 00:11:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-07-20 00:11:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-20 00:11:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-20 00:11:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-20 00:11:00,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 00:11:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-07-20 00:11:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:00,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:00,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:01,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:01,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:01,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-20 00:11:01,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:01,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-20 00:11:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:01,011 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2022-07-20 00:11:01,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:11:01,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293378703] [2022-07-20 00:11:01,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293378703] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:11:01,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:11:01,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-20 00:11:01,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442822539] [2022-07-20 00:11:01,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:11:01,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-20 00:11:01,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:11:01,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-20 00:11:01,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-07-20 00:11:01,014 INFO L87 Difference]: Start difference. First operand 10622 states and 14561 transitions. Second operand has 11 states, 11 states have (on average 17.0) internal successors, (187), 3 states have internal predecessors, (187), 3 states have call successors, (37), 10 states have call predecessors, (37), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-07-20 00:11:05,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:11:09,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:11:09,843 INFO L93 Difference]: Finished difference Result 24554 states and 34258 transitions. [2022-07-20 00:11:09,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-20 00:11:09,844 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 17.0) internal successors, (187), 3 states have internal predecessors, (187), 3 states have call successors, (37), 10 states have call predecessors, (37), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 367 [2022-07-20 00:11:09,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:11:09,905 INFO L225 Difference]: With dead ends: 24554 [2022-07-20 00:11:09,905 INFO L226 Difference]: Without dead ends: 14001 [2022-07-20 00:11:09,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2022-07-20 00:11:09,939 INFO L413 NwaCegarLoop]: 870 mSDtfsCounter, 1485 mSDsluCounter, 2265 mSDsCounter, 0 mSdLazyCounter, 3077 mSolverCounterSat, 807 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 3135 SdHoareTripleChecker+Invalid, 3884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 807 IncrementalHoareTripleChecker+Valid, 3077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-07-20 00:11:09,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1556 Valid, 3135 Invalid, 3884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [807 Valid, 3077 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2022-07-20 00:11:09,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14001 states. [2022-07-20 00:11:10,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14001 to 10982. [2022-07-20 00:11:10,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10982 states, 8572 states have (on average 1.3237284181054596) internal successors, (11347), 8810 states have internal predecessors, (11347), 1577 states have call successors, (1577), 694 states have call predecessors, (1577), 832 states have return successors, (2237), 1564 states have call predecessors, (2237), 1576 states have call successors, (2237) [2022-07-20 00:11:10,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10982 states to 10982 states and 15161 transitions. [2022-07-20 00:11:10,712 INFO L78 Accepts]: Start accepts. Automaton has 10982 states and 15161 transitions. Word has length 367 [2022-07-20 00:11:10,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:11:10,712 INFO L495 AbstractCegarLoop]: Abstraction has 10982 states and 15161 transitions. [2022-07-20 00:11:10,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 17.0) internal successors, (187), 3 states have internal predecessors, (187), 3 states have call successors, (37), 10 states have call predecessors, (37), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-07-20 00:11:10,713 INFO L276 IsEmpty]: Start isEmpty. Operand 10982 states and 15161 transitions. [2022-07-20 00:11:10,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-07-20 00:11:10,729 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:11:10,729 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:11:10,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-20 00:11:10,730 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:11:10,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:11:10,731 INFO L85 PathProgramCache]: Analyzing trace with hash -2015641633, now seen corresponding path program 1 times [2022-07-20 00:11:10,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:11:10,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34805204] [2022-07-20 00:11:10,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:11:10,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:11:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:10,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:11:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:10,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:10,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:10,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:11:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:10,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:10,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:10,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:11:10,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:10,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:10,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:10,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:11:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:11:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 00:11:11,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:11,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:11:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:11:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 00:11:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 00:11:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-20 00:11:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-20 00:11:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-20 00:11:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-20 00:11:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-20 00:11:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-20 00:11:11,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-20 00:11:11,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-20 00:11:11,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-20 00:11:11,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-20 00:11:11,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-20 00:11:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-20 00:11:11,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-20 00:11:11,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-07-20 00:11:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-20 00:11:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 00:11:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-07-20 00:11:11,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-20 00:11:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-20 00:11:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:11,230 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 30 proven. 4 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-07-20 00:11:11,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:11:11,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34805204] [2022-07-20 00:11:11,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34805204] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 00:11:11,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12235503] [2022-07-20 00:11:11,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:11:11,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 00:11:11,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 00:11:11,233 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) [2022-07-20 00:11:11,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-20 00:11:12,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:12,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 2859 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-20 00:11:12,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:11:12,253 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 104 proven. 6 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2022-07-20 00:11:12,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 00:11:12,524 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-07-20 00:11:12,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12235503] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 00:11:12,525 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-20 00:11:12,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 7, 6] total 22 [2022-07-20 00:11:12,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059869882] [2022-07-20 00:11:12,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-20 00:11:12,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-20 00:11:12,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:11:12,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-20 00:11:12,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-07-20 00:11:12,527 INFO L87 Difference]: Start difference. First operand 10982 states and 15161 transitions. Second operand has 22 states, 22 states have (on average 13.090909090909092) internal successors, (288), 11 states have internal predecessors, (288), 3 states have call successors, (80), 10 states have call predecessors, (80), 4 states have return successors, (66), 6 states have call predecessors, (66), 3 states have call successors, (66) [2022-07-20 00:11:31,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:11:31,130 INFO L93 Difference]: Finished difference Result 45254 states and 66418 transitions. [2022-07-20 00:11:31,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-20 00:11:31,131 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 13.090909090909092) internal successors, (288), 11 states have internal predecessors, (288), 3 states have call successors, (80), 10 states have call predecessors, (80), 4 states have return successors, (66), 6 states have call predecessors, (66), 3 states have call successors, (66) Word has length 374 [2022-07-20 00:11:31,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:11:31,254 INFO L225 Difference]: With dead ends: 45254 [2022-07-20 00:11:31,254 INFO L226 Difference]: Without dead ends: 34341 [2022-07-20 00:11:31,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 869 GetRequests, 832 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=177, Invalid=1229, Unknown=0, NotChecked=0, Total=1406 [2022-07-20 00:11:31,294 INFO L413 NwaCegarLoop]: 2150 mSDtfsCounter, 3533 mSDsluCounter, 17204 mSDsCounter, 0 mSdLazyCounter, 12031 mSolverCounterSat, 1884 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3722 SdHoareTripleChecker+Valid, 19354 SdHoareTripleChecker+Invalid, 13915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1884 IncrementalHoareTripleChecker+Valid, 12031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2022-07-20 00:11:31,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3722 Valid, 19354 Invalid, 13915 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1884 Valid, 12031 Invalid, 0 Unknown, 0 Unchecked, 16.4s Time] [2022-07-20 00:11:31,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34341 states. [2022-07-20 00:11:32,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34341 to 11102. [2022-07-20 00:11:32,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11102 states, 8692 states have (on average 1.3192590888173032) internal successors, (11467), 8890 states have internal predecessors, (11467), 1577 states have call successors, (1577), 694 states have call predecessors, (1577), 832 states have return successors, (2237), 1604 states have call predecessors, (2237), 1576 states have call successors, (2237) [2022-07-20 00:11:32,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11102 states to 11102 states and 15281 transitions. [2022-07-20 00:11:32,298 INFO L78 Accepts]: Start accepts. Automaton has 11102 states and 15281 transitions. Word has length 374 [2022-07-20 00:11:32,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:11:32,299 INFO L495 AbstractCegarLoop]: Abstraction has 11102 states and 15281 transitions. [2022-07-20 00:11:32,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 13.090909090909092) internal successors, (288), 11 states have internal predecessors, (288), 3 states have call successors, (80), 10 states have call predecessors, (80), 4 states have return successors, (66), 6 states have call predecessors, (66), 3 states have call successors, (66) [2022-07-20 00:11:32,299 INFO L276 IsEmpty]: Start isEmpty. Operand 11102 states and 15281 transitions. [2022-07-20 00:11:32,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2022-07-20 00:11:32,314 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:11:32,314 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:11:32,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-07-20 00:11:32,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 00:11:32,515 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:11:32,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:11:32,516 INFO L85 PathProgramCache]: Analyzing trace with hash -492319995, now seen corresponding path program 2 times [2022-07-20 00:11:32,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:11:32,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542806972] [2022-07-20 00:11:32,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:11:32,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:11:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:11:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:32,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:11:32,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:11:32,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:32,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:32,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:11:32,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:11:32,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 00:11:32,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:11:32,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:11:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 00:11:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:11:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-20 00:11:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:11:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-20 00:11:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-20 00:11:32,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-20 00:11:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-20 00:11:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-20 00:11:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-20 00:11:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-20 00:11:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-20 00:11:32,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-20 00:11:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-20 00:11:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:32,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-20 00:11:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-20 00:11:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-07-20 00:11:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-20 00:11:32,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:32,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-20 00:11:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:33,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:33,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 00:11:33,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:33,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-07-20 00:11:33,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:33,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:33,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:33,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:33,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:33,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:33,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-20 00:11:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:33,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-20 00:11:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:33,088 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2022-07-20 00:11:33,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:11:33,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542806972] [2022-07-20 00:11:33,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542806972] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:11:33,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:11:33,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-20 00:11:33,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619074582] [2022-07-20 00:11:33,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:11:33,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-20 00:11:33,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:11:33,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-20 00:11:33,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-07-20 00:11:33,091 INFO L87 Difference]: Start difference. First operand 11102 states and 15281 transitions. Second operand has 13 states, 13 states have (on average 15.076923076923077) internal successors, (196), 4 states have internal predecessors, (196), 3 states have call successors, (37), 10 states have call predecessors, (37), 3 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2022-07-20 00:11:40,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:11:40,003 INFO L93 Difference]: Finished difference Result 23359 states and 32346 transitions. [2022-07-20 00:11:40,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-20 00:11:40,004 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 15.076923076923077) internal successors, (196), 4 states have internal predecessors, (196), 3 states have call successors, (37), 10 states have call predecessors, (37), 3 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) Word has length 386 [2022-07-20 00:11:40,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:11:40,054 INFO L225 Difference]: With dead ends: 23359 [2022-07-20 00:11:40,055 INFO L226 Difference]: Without dead ends: 12326 [2022-07-20 00:11:40,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2022-07-20 00:11:40,080 INFO L413 NwaCegarLoop]: 711 mSDtfsCounter, 1823 mSDsluCounter, 1568 mSDsCounter, 0 mSdLazyCounter, 2831 mSolverCounterSat, 1092 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1855 SdHoareTripleChecker+Valid, 2279 SdHoareTripleChecker+Invalid, 3923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1092 IncrementalHoareTripleChecker+Valid, 2831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-07-20 00:11:40,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1855 Valid, 2279 Invalid, 3923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1092 Valid, 2831 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-07-20 00:11:40,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12326 states. [2022-07-20 00:11:40,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12326 to 11204. [2022-07-20 00:11:40,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11204 states, 8770 states have (on average 1.318472063854048) internal successors, (11563), 8956 states have internal predecessors, (11563), 1595 states have call successors, (1595), 694 states have call predecessors, (1595), 838 states have return successors, (2279), 1640 states have call predecessors, (2279), 1594 states have call successors, (2279) [2022-07-20 00:11:40,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11204 states to 11204 states and 15437 transitions. [2022-07-20 00:11:40,781 INFO L78 Accepts]: Start accepts. Automaton has 11204 states and 15437 transitions. Word has length 386 [2022-07-20 00:11:40,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:11:40,782 INFO L495 AbstractCegarLoop]: Abstraction has 11204 states and 15437 transitions. [2022-07-20 00:11:40,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 15.076923076923077) internal successors, (196), 4 states have internal predecessors, (196), 3 states have call successors, (37), 10 states have call predecessors, (37), 3 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2022-07-20 00:11:40,782 INFO L276 IsEmpty]: Start isEmpty. Operand 11204 states and 15437 transitions. [2022-07-20 00:11:40,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2022-07-20 00:11:40,797 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:11:40,797 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:11:40,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-20 00:11:40,798 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:11:40,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:11:40,798 INFO L85 PathProgramCache]: Analyzing trace with hash 912347474, now seen corresponding path program 1 times [2022-07-20 00:11:40,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:11:40,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84650762] [2022-07-20 00:11:40,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:11:40,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:11:41,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:11:41,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:41,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:11:41,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:41,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:11:41,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:11:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:11:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 00:11:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:11:41,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:11:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 00:11:41,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:11:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-20 00:11:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:11:41,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-20 00:11:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-20 00:11:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-20 00:11:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-20 00:11:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-20 00:11:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-20 00:11:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-20 00:11:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-20 00:11:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-20 00:11:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-20 00:11:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:41,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-20 00:11:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-20 00:11:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-07-20 00:11:41,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-20 00:11:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-20 00:11:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:11:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-20 00:11:41,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-20 00:11:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-20 00:11:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-20 00:11:41,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:41,434 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2022-07-20 00:11:41,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:11:41,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84650762] [2022-07-20 00:11:41,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84650762] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 00:11:41,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407375654] [2022-07-20 00:11:41,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:11:41,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 00:11:41,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 00:11:41,440 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) [2022-07-20 00:11:41,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-20 00:11:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:42,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 2937 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-20 00:11:42,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:11:42,743 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-07-20 00:11:42,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:11:42,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407375654] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:11:42,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 00:11:42,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2022-07-20 00:11:42,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685214587] [2022-07-20 00:11:42,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:11:42,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:11:42,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:11:42,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:11:42,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-07-20 00:11:42,745 INFO L87 Difference]: Start difference. First operand 11204 states and 15437 transitions. Second operand has 6 states, 5 states have (on average 40.2) internal successors, (201), 5 states have internal predecessors, (201), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-07-20 00:11:43,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:11:43,798 INFO L93 Difference]: Finished difference Result 23895 states and 33103 transitions. [2022-07-20 00:11:43,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 00:11:43,799 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 40.2) internal successors, (201), 5 states have internal predecessors, (201), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 392 [2022-07-20 00:11:43,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:11:43,840 INFO L225 Difference]: With dead ends: 23895 [2022-07-20 00:11:43,841 INFO L226 Difference]: Without dead ends: 12760 [2022-07-20 00:11:43,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 474 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-07-20 00:11:43,864 INFO L413 NwaCegarLoop]: 839 mSDtfsCounter, 128 mSDsluCounter, 3273 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 4112 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 00:11:43,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 4112 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 00:11:43,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12760 states. [2022-07-20 00:11:44,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12760 to 11204. [2022-07-20 00:11:44,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11204 states, 8770 states have (on average 1.3180159635119726) internal successors, (11559), 8956 states have internal predecessors, (11559), 1595 states have call successors, (1595), 694 states have call predecessors, (1595), 838 states have return successors, (2279), 1640 states have call predecessors, (2279), 1594 states have call successors, (2279) [2022-07-20 00:11:44,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11204 states to 11204 states and 15433 transitions. [2022-07-20 00:11:44,538 INFO L78 Accepts]: Start accepts. Automaton has 11204 states and 15433 transitions. Word has length 392 [2022-07-20 00:11:44,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:11:44,539 INFO L495 AbstractCegarLoop]: Abstraction has 11204 states and 15433 transitions. [2022-07-20 00:11:44,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 40.2) internal successors, (201), 5 states have internal predecessors, (201), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-07-20 00:11:44,539 INFO L276 IsEmpty]: Start isEmpty. Operand 11204 states and 15433 transitions. [2022-07-20 00:11:44,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2022-07-20 00:11:44,553 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:11:44,554 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:11:44,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-20 00:11:44,754 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,SelfDestructingSolverStorable25 [2022-07-20 00:11:44,755 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:11:44,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:11:44,756 INFO L85 PathProgramCache]: Analyzing trace with hash -857124140, now seen corresponding path program 1 times [2022-07-20 00:11:44,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:11:44,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919050251] [2022-07-20 00:11:44,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:11:44,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:11:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:11:45,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:11:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:11:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:11:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 00:11:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 00:11:45,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:45,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:11:45,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:11:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 00:11:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:11:45,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-20 00:11:45,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:11:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-20 00:11:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-20 00:11:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-20 00:11:45,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-20 00:11:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-20 00:11:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-20 00:11:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-20 00:11:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-20 00:11:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-20 00:11:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-20 00:11:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:45,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:45,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-20 00:11:45,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-20 00:11:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-07-20 00:11:45,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-20 00:11:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-20 00:11:45,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:45,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:11:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-20 00:11:45,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-20 00:11:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:45,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:45,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-20 00:11:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-20 00:11:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:45,379 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2022-07-20 00:11:45,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:11:45,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919050251] [2022-07-20 00:11:45,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919050251] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 00:11:45,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062517480] [2022-07-20 00:11:45,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:11:45,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 00:11:45,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 00:11:45,382 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) [2022-07-20 00:11:45,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-20 00:11:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:46,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 2938 conjuncts, 20 conjunts are in the unsatisfiable core [2022-07-20 00:11:46,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:11:46,856 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2022-07-20 00:11:46,856 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:11:46,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062517480] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:11:46,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 00:11:46,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-07-20 00:11:46,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329144742] [2022-07-20 00:11:46,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:11:46,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 00:11:46,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:11:46,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 00:11:46,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-07-20 00:11:46,859 INFO L87 Difference]: Start difference. First operand 11204 states and 15433 transitions. Second operand has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-07-20 00:11:47,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:11:47,561 INFO L93 Difference]: Finished difference Result 22388 states and 30845 transitions. [2022-07-20 00:11:47,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 00:11:47,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 392 [2022-07-20 00:11:47,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:11:47,598 INFO L225 Difference]: With dead ends: 22388 [2022-07-20 00:11:47,598 INFO L226 Difference]: Without dead ends: 11205 [2022-07-20 00:11:47,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 476 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-07-20 00:11:47,623 INFO L413 NwaCegarLoop]: 785 mSDtfsCounter, 3 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2350 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 00:11:47,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2350 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 00:11:47,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11205 states. [2022-07-20 00:11:48,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11205 to 11205. [2022-07-20 00:11:48,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11205 states, 8771 states have (on average 1.31797970584882) internal successors, (11560), 8957 states have internal predecessors, (11560), 1595 states have call successors, (1595), 694 states have call predecessors, (1595), 838 states have return successors, (2279), 1640 states have call predecessors, (2279), 1594 states have call successors, (2279) [2022-07-20 00:11:48,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11205 states to 11205 states and 15434 transitions. [2022-07-20 00:11:48,421 INFO L78 Accepts]: Start accepts. Automaton has 11205 states and 15434 transitions. Word has length 392 [2022-07-20 00:11:48,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:11:48,422 INFO L495 AbstractCegarLoop]: Abstraction has 11205 states and 15434 transitions. [2022-07-20 00:11:48,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-07-20 00:11:48,422 INFO L276 IsEmpty]: Start isEmpty. Operand 11205 states and 15434 transitions. [2022-07-20 00:11:48,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2022-07-20 00:11:48,437 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:11:48,437 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:11:48,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-20 00:11:48,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-07-20 00:11:48,638 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:11:48,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:11:48,639 INFO L85 PathProgramCache]: Analyzing trace with hash -974118812, now seen corresponding path program 1 times [2022-07-20 00:11:48,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:11:48,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711482348] [2022-07-20 00:11:48,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:11:48,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:11:48,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:48,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:11:48,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:48,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:48,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:48,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:11:48,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:48,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:48,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:48,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:48,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:11:48,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:48,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:48,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:48,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:48,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:11:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-20 00:11:49,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-20 00:11:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:49,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-20 00:11:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:11:49,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-20 00:11:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:11:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-20 00:11:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:11:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-20 00:11:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-20 00:11:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 00:11:49,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-20 00:11:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-20 00:11:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-20 00:11:49,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-20 00:11:49,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-20 00:11:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-20 00:11:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-20 00:11:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-07-20 00:11:49,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-20 00:11:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-07-20 00:11:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-20 00:11:49,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-07-20 00:11:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:49,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:11:49,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-20 00:11:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2022-07-20 00:11:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:49,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:49,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:11:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:11:49,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-20 00:11:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-20 00:11:49,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:49,245 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2022-07-20 00:11:49,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:11:49,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711482348] [2022-07-20 00:11:49,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711482348] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 00:11:49,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98905020] [2022-07-20 00:11:49,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:11:49,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 00:11:49,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 00:11:49,248 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) [2022-07-20 00:11:49,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-20 00:11:50,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:50,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 2968 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-20 00:11:50,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:11:50,998 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 140 proven. 1 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-07-20 00:11:50,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 00:11:51,285 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2022-07-20 00:11:51,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98905020] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 00:11:51,286 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-20 00:11:51,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 18 [2022-07-20 00:11:51,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96081088] [2022-07-20 00:11:51,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-20 00:11:51,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-20 00:11:51,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:11:51,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-20 00:11:51,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-07-20 00:11:51,289 INFO L87 Difference]: Start difference. First operand 11205 states and 15434 transitions. Second operand has 18 states, 18 states have (on average 15.11111111111111) internal successors, (272), 10 states have internal predecessors, (272), 2 states have call successors, (85), 10 states have call predecessors, (85), 4 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-07-20 00:11:56,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:11:57,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:11:59,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:12:03,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:12:03,464 INFO L93 Difference]: Finished difference Result 23513 states and 32519 transitions. [2022-07-20 00:12:03,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-20 00:12:03,465 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 15.11111111111111) internal successors, (272), 10 states have internal predecessors, (272), 2 states have call successors, (85), 10 states have call predecessors, (85), 4 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) Word has length 394 [2022-07-20 00:12:03,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:12:03,512 INFO L225 Difference]: With dead ends: 23513 [2022-07-20 00:12:03,512 INFO L226 Difference]: Without dead ends: 12326 [2022-07-20 00:12:03,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 902 GetRequests, 872 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=215, Invalid=777, Unknown=0, NotChecked=0, Total=992 [2022-07-20 00:12:03,535 INFO L413 NwaCegarLoop]: 708 mSDtfsCounter, 1660 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 3799 mSolverCounterSat, 967 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1692 SdHoareTripleChecker+Valid, 2726 SdHoareTripleChecker+Invalid, 4766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 967 IncrementalHoareTripleChecker+Valid, 3799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-07-20 00:12:03,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1692 Valid, 2726 Invalid, 4766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [967 Valid, 3799 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2022-07-20 00:12:03,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12326 states. [2022-07-20 00:12:04,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12326 to 11208. [2022-07-20 00:12:04,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11208 states, 8774 states have (on average 1.3178709824481423) internal successors, (11563), 8960 states have internal predecessors, (11563), 1595 states have call successors, (1595), 694 states have call predecessors, (1595), 838 states have return successors, (2279), 1640 states have call predecessors, (2279), 1594 states have call successors, (2279) [2022-07-20 00:12:04,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11208 states to 11208 states and 15437 transitions. [2022-07-20 00:12:04,353 INFO L78 Accepts]: Start accepts. Automaton has 11208 states and 15437 transitions. Word has length 394 [2022-07-20 00:12:04,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:12:04,353 INFO L495 AbstractCegarLoop]: Abstraction has 11208 states and 15437 transitions. [2022-07-20 00:12:04,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 15.11111111111111) internal successors, (272), 10 states have internal predecessors, (272), 2 states have call successors, (85), 10 states have call predecessors, (85), 4 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-07-20 00:12:04,354 INFO L276 IsEmpty]: Start isEmpty. Operand 11208 states and 15437 transitions. [2022-07-20 00:12:04,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2022-07-20 00:12:04,368 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:12:04,368 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:12:04,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-20 00:12:04,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 00:12:04,569 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:12:04,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:12:04,569 INFO L85 PathProgramCache]: Analyzing trace with hash -496348972, now seen corresponding path program 2 times [2022-07-20 00:12:04,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:12:04,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961812508] [2022-07-20 00:12:04,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:12:04,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:12:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:04,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:12:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:04,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:12:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:04,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:12:04,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:04,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:12:04,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:04,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:12:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:04,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:12:04,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:04,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:12:04,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:04,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:12:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:04,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:12:04,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:04,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-20 00:12:05,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-20 00:12:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-20 00:12:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:12:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:12:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-20 00:12:05,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:12:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-20 00:12:05,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:12:05,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-20 00:12:05,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:12:05,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-20 00:12:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-20 00:12:05,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-20 00:12:05,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-20 00:12:05,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-20 00:12:05,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-20 00:12:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-20 00:12:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-20 00:12:05,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-20 00:12:05,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-20 00:12:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:12:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:12:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-20 00:12:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-20 00:12:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-20 00:12:05,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-20 00:12:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-07-20 00:12:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:12:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:12:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-20 00:12:05,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-07-20 00:12:05,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:12:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:12:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:12:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:12:05,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-20 00:12:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-20 00:12:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:12:05,358 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 42 proven. 1 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2022-07-20 00:12:05,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:12:05,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961812508] [2022-07-20 00:12:05,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961812508] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 00:12:05,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953855029] [2022-07-20 00:12:05,359 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 00:12:05,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 00:12:05,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 00:12:05,361 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) [2022-07-20 00:12:05,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process