./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4b829e0b1083ca135908ac8582697cf0831b43587b46e1b9cc42429c7a2c7866 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:08:48,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:08:48,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:08:48,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:08:48,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:08:48,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:08:48,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:08:48,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:08:48,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:08:48,202 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:08:48,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:08:48,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:08:48,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:08:48,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:08:48,206 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:08:48,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:08:48,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:08:48,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:08:48,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:08:48,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:08:48,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:08:48,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:08:48,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:08:48,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:08:48,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:08:48,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:08:48,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:08:48,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:08:48,231 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:08:48,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:08:48,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:08:48,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:08:48,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:08:48,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:08:48,235 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:08:48,235 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:08:48,236 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:08:48,237 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:08:48,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:08:48,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:08:48,239 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:08:48,240 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:08:48,269 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:08:48,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:08:48,270 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:08:48,270 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:08:48,271 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:08:48,271 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:08:48,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:08:48,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:08:48,271 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:08:48,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:08:48,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:08:48,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:08:48,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:08:48,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:08:48,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:08:48,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:08:48,273 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:08:48,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:08:48,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:08:48,274 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:08:48,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:08:48,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:08:48,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:08:48,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:08:48,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:08:48,275 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:08:48,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:08:48,276 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:08:48,276 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:08:48,276 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:08:48,276 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:08:48,276 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b829e0b1083ca135908ac8582697cf0831b43587b46e1b9cc42429c7a2c7866 [2021-12-22 15:08:48,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:08:48,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:08:48,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:08:48,476 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:08:48,479 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:08:48,480 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2021-12-22 15:08:48,521 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d63950201/b13760f7832041b2905e4e3928cbcc80/FLAGc7ce19d74 [2021-12-22 15:08:49,136 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:08:49,137 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2021-12-22 15:08:49,183 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d63950201/b13760f7832041b2905e4e3928cbcc80/FLAGc7ce19d74 [2021-12-22 15:08:49,301 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d63950201/b13760f7832041b2905e4e3928cbcc80 [2021-12-22 15:08:49,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:08:49,305 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:08:49,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:08:49,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:08:49,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:08:49,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:08:49" (1/1) ... [2021-12-22 15:08:49,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66d5c9a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:49, skipping insertion in model container [2021-12-22 15:08:49,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:08:49" (1/1) ... [2021-12-22 15:08:49,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:08:49,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:08:51,398 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[378939,378952] [2021-12-22 15:08:51,446 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:08:51,553 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:08:51,903 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[378939,378952] [2021-12-22 15:08:51,908 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:08:52,035 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:08:52,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:52 WrapperNode [2021-12-22 15:08:52,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:08:52,037 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:08:52,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:08:52,038 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:08:52,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:52" (1/1) ... [2021-12-22 15:08:52,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:52" (1/1) ... [2021-12-22 15:08:52,296 INFO L137 Inliner]: procedures = 341, calls = 3940, calls flagged for inlining = 136, calls inlined = 92, statements flattened = 5421 [2021-12-22 15:08:52,296 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:08:52,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:08:52,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:08:52,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:08:52,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:52" (1/1) ... [2021-12-22 15:08:52,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:52" (1/1) ... [2021-12-22 15:08:52,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:52" (1/1) ... [2021-12-22 15:08:52,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:52" (1/1) ... [2021-12-22 15:08:52,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:52" (1/1) ... [2021-12-22 15:08:52,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:52" (1/1) ... [2021-12-22 15:08:52,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:52" (1/1) ... [2021-12-22 15:08:52,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:08:52,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:08:52,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:08:52,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:08:52,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:52" (1/1) ... [2021-12-22 15:08:52,533 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:08:52,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:08:52,549 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) [2021-12-22 15:08:52,576 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2021-12-22 15:08:52,577 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2021-12-22 15:08:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2021-12-22 15:08:52,577 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2021-12-22 15:08:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-22 15:08:52,577 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-22 15:08:52,578 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2021-12-22 15:08:52,578 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2021-12-22 15:08:52,578 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-22 15:08:52,578 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-22 15:08:52,578 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2021-12-22 15:08:52,578 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2021-12-22 15:08:52,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:08:52,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:08:52,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:08:52,579 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:08:52,579 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2021-12-22 15:08:52,579 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2021-12-22 15:08:52,579 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2021-12-22 15:08:52,579 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2021-12-22 15:08:52,580 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2021-12-22 15:08:52,580 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2021-12-22 15:08:52,580 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2021-12-22 15:08:52,580 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2021-12-22 15:08:52,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-22 15:08:52,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-22 15:08:52,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 15:08:52,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 15:08:52,580 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2021-12-22 15:08:52,581 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2021-12-22 15:08:52,581 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2021-12-22 15:08:52,581 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2021-12-22 15:08:52,581 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2021-12-22 15:08:52,581 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2021-12-22 15:08:52,581 INFO L130 BoogieDeclarations]: Found specification of procedure freeurbs [2021-12-22 15:08:52,581 INFO L138 BoogieDeclarations]: Found implementation of procedure freeurbs [2021-12-22 15:08:52,581 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_down [2021-12-22 15:08:52,581 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_down [2021-12-22 15:08:52,582 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-12-22 15:08:52,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-12-22 15:08:52,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 15:08:52,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 15:08:52,582 INFO L130 BoogieDeclarations]: Found specification of procedure start_cbsend [2021-12-22 15:08:52,582 INFO L138 BoogieDeclarations]: Found implementation of procedure start_cbsend [2021-12-22 15:08:52,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 15:08:52,582 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 15:08:52,583 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2021-12-22 15:08:52,583 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2021-12-22 15:08:52,583 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 15:08:52,571 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 [2021-12-22 15:08:52,587 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 15:08:52,587 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-22 15:08:52,588 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-22 15:08:52,588 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2021-12-22 15:08:52,588 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2021-12-22 15:08:52,588 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2021-12-22 15:08:52,588 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2021-12-22 15:08:52,589 INFO L130 BoogieDeclarations]: Found specification of procedure usb_queue_reset_device [2021-12-22 15:08:52,589 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_queue_reset_device [2021-12-22 15:08:52,589 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 15:08:52,590 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 15:08:52,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2021-12-22 15:08:52,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2021-12-22 15:08:52,590 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2021-12-22 15:08:52,590 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2021-12-22 15:08:52,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2021-12-22 15:08:52,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2021-12-22 15:08:52,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2021-12-22 15:08:52,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2021-12-22 15:08:52,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:08:52,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_5 [2021-12-22 15:08:52,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_5 [2021-12-22 15:08:52,592 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-22 15:08:52,592 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-22 15:08:52,592 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2021-12-22 15:08:52,592 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2021-12-22 15:08:52,592 INFO L130 BoogieDeclarations]: Found specification of procedure check_pending [2021-12-22 15:08:52,592 INFO L138 BoogieDeclarations]: Found implementation of procedure check_pending [2021-12-22 15:08:52,592 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-22 15:08:52,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:08:52,593 INFO L130 BoogieDeclarations]: Found specification of procedure error_hangup [2021-12-22 15:08:52,593 INFO L138 BoogieDeclarations]: Found implementation of procedure error_hangup [2021-12-22 15:08:52,593 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2021-12-22 15:08:52,593 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2021-12-22 15:08:52,593 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_send_skb [2021-12-22 15:08:52,593 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_send_skb [2021-12-22 15:08:52,593 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2021-12-22 15:08:52,593 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2021-12-22 15:08:52,594 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 15:08:52,594 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 15:08:52,594 INFO L130 BoogieDeclarations]: Found specification of procedure req_submit [2021-12-22 15:08:52,594 INFO L138 BoogieDeclarations]: Found implementation of procedure req_submit [2021-12-22 15:08:52,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:08:52,594 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2021-12-22 15:08:52,595 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2021-12-22 15:08:52,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:08:52,595 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2021-12-22 15:08:52,595 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2021-12-22 15:08:52,595 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-12-22 15:08:52,596 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-12-22 15:08:52,596 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-22 15:08:52,596 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-22 15:08:52,596 INFO L130 BoogieDeclarations]: Found specification of procedure complete_cb [2021-12-22 15:08:52,596 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_cb [2021-12-22 15:08:52,596 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-22 15:08:52,597 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-22 15:08:52,597 INFO L130 BoogieDeclarations]: Found specification of procedure stopurbs [2021-12-22 15:08:52,597 INFO L138 BoogieDeclarations]: Found implementation of procedure stopurbs [2021-12-22 15:08:52,597 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2021-12-22 15:08:52,597 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2021-12-22 15:08:52,597 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-22 15:08:52,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-22 15:08:52,597 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2021-12-22 15:08:52,598 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2021-12-22 15:08:52,598 INFO L130 BoogieDeclarations]: Found specification of procedure int_in_work [2021-12-22 15:08:52,598 INFO L138 BoogieDeclarations]: Found implementation of procedure int_in_work [2021-12-22 15:08:52,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:08:52,598 INFO L130 BoogieDeclarations]: Found specification of procedure dump_urb [2021-12-22 15:08:52,599 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_urb [2021-12-22 15:08:52,599 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-22 15:08:52,601 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-22 15:08:52,601 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-22 15:08:52,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-22 15:08:52,601 INFO L130 BoogieDeclarations]: Found specification of procedure atwrite_submit [2021-12-22 15:08:52,602 INFO L138 BoogieDeclarations]: Found implementation of procedure atwrite_submit [2021-12-22 15:08:52,602 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_3 [2021-12-22 15:08:52,603 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_3 [2021-12-22 15:08:52,603 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-22 15:08:52,603 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-22 15:08:52,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-22 15:08:52,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-22 15:08:52,607 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-12-22 15:08:52,607 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-12-22 15:08:52,607 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2021-12-22 15:08:52,607 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2021-12-22 15:08:52,607 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 15:08:52,607 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 15:08:52,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:08:52,608 INFO L130 BoogieDeclarations]: Found specification of procedure get_usb_rcmsg [2021-12-22 15:08:52,608 INFO L138 BoogieDeclarations]: Found implementation of procedure get_usb_rcmsg [2021-12-22 15:08:52,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:08:52,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:08:52,608 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2021-12-22 15:08:52,608 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2021-12-22 15:08:52,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-22 15:08:52,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-22 15:08:52,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:08:52,609 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-22 15:08:52,609 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-22 15:08:52,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-22 15:08:52,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-22 15:08:52,609 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2021-12-22 15:08:52,609 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2021-12-22 15:08:52,609 INFO L130 BoogieDeclarations]: Found specification of procedure error_reset [2021-12-22 15:08:52,609 INFO L138 BoogieDeclarations]: Found implementation of procedure error_reset [2021-12-22 15:08:52,609 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_input [2021-12-22 15:08:52,609 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_input [2021-12-22 15:08:52,610 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2021-12-22 15:08:52,610 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2021-12-22 15:08:52,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:08:52,610 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2021-12-22 15:08:52,610 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2021-12-22 15:08:52,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:08:52,610 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2021-12-22 15:08:52,610 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2021-12-22 15:08:52,610 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-12-22 15:08:52,610 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-12-22 15:08:52,610 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-12-22 15:08:52,611 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-12-22 15:08:52,611 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-22 15:08:52,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-22 15:08:52,611 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2021-12-22 15:08:52,611 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2021-12-22 15:08:52,611 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-22 15:08:52,611 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-22 15:08:52,611 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-22 15:08:52,611 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-22 15:08:52,611 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-12-22 15:08:52,612 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-12-22 15:08:52,612 INFO L130 BoogieDeclarations]: Found specification of procedure update_basstate [2021-12-22 15:08:52,612 INFO L138 BoogieDeclarations]: Found implementation of procedure update_basstate [2021-12-22 15:08:52,612 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-12-22 15:08:52,612 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-12-22 15:08:52,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:08:52,612 INFO L130 BoogieDeclarations]: Found specification of procedure atread_submit [2021-12-22 15:08:52,612 INFO L138 BoogieDeclarations]: Found implementation of procedure atread_submit [2021-12-22 15:08:52,612 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2021-12-22 15:08:52,612 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2021-12-22 15:08:52,613 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-22 15:08:52,613 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-22 15:08:52,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:08:52,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:08:53,121 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:08:53,123 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:08:53,352 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:08:58,132 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:08:58,149 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:08:58,150 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 15:08:58,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:08:58 BoogieIcfgContainer [2021-12-22 15:08:58,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:08:58,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:08:58,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:08:58,157 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:08:58,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:08:49" (1/3) ... [2021-12-22 15:08:58,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7acdec17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:08:58, skipping insertion in model container [2021-12-22 15:08:58,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:52" (2/3) ... [2021-12-22 15:08:58,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7acdec17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:08:58, skipping insertion in model container [2021-12-22 15:08:58,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:08:58" (3/3) ... [2021-12-22 15:08:58,160 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2021-12-22 15:08:58,165 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:08:58,166 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 15:08:58,202 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:08:58,206 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 15:08:58,207 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 15:08:58,236 INFO L276 IsEmpty]: Start isEmpty. Operand has 1584 states, 1098 states have (on average 1.3597449908925319) internal successors, (1493), 1142 states have internal predecessors, (1493), 396 states have call successors, (396), 89 states have call predecessors, (396), 88 states have return successors, (387), 368 states have call predecessors, (387), 387 states have call successors, (387) [2021-12-22 15:08:58,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-22 15:08:58,251 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:08:58,251 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:08:58,252 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:08:58,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:08:58,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1429373024, now seen corresponding path program 1 times [2021-12-22 15:08:58,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:08:58,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26965909] [2021-12-22 15:08:58,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:08:58,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:08:58,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:58,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:08:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:58,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:58,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:08:58,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:58,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:08:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:58,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:58,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:08:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:58,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:08:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:58,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:58,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:08:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:58,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:08:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:58,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:58,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:08:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:58,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:08:58,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:58,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:58,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:08:58,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:59,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-22 15:08:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:59,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:59,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:59,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 15:08:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:59,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:59,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 15:08:59,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:59,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:59,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-22 15:08:59,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:59,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:59,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 15:08:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:59,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:59,108 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-12-22 15:08:59,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:08:59,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26965909] [2021-12-22 15:08:59,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26965909] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:08:59,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:08:59,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:08:59,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829435229] [2021-12-22 15:08:59,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:08:59,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:08:59,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:08:59,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:08:59,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:08:59,144 INFO L87 Difference]: Start difference. First operand has 1584 states, 1098 states have (on average 1.3597449908925319) internal successors, (1493), 1142 states have internal predecessors, (1493), 396 states have call successors, (396), 89 states have call predecessors, (396), 88 states have return successors, (387), 368 states have call predecessors, (387), 387 states have call successors, (387) Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-22 15:09:03,538 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:09:04,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:09:04,002 INFO L93 Difference]: Finished difference Result 3312 states and 4895 transitions. [2021-12-22 15:09:04,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 15:09:04,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 163 [2021-12-22 15:09:04,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:09:04,022 INFO L225 Difference]: With dead ends: 3312 [2021-12-22 15:09:04,022 INFO L226 Difference]: Without dead ends: 1671 [2021-12-22 15:09:04,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:09:04,039 INFO L933 BasicCegarLoop]: 2115 mSDtfsCounter, 1011 mSDsluCounter, 1960 mSDsCounter, 0 mSdLazyCounter, 1233 mSolverCounterSat, 1019 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 4075 SdHoareTripleChecker+Invalid, 2252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1019 IncrementalHoareTripleChecker+Valid, 1233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-12-22 15:09:04,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1019 Valid, 4075 Invalid, 2252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1019 Valid, 1233 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-12-22 15:09:04,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2021-12-22 15:09:04,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1522. [2021-12-22 15:09:04,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1522 states, 1058 states have (on average 1.3534971644612477) internal successors, (1432), 1091 states have internal predecessors, (1432), 377 states have call successors, (377), 87 states have call predecessors, (377), 86 states have return successors, (376), 357 states have call predecessors, (376), 376 states have call successors, (376) [2021-12-22 15:09:04,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1522 states to 1522 states and 2185 transitions. [2021-12-22 15:09:04,180 INFO L78 Accepts]: Start accepts. Automaton has 1522 states and 2185 transitions. Word has length 163 [2021-12-22 15:09:04,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:09:04,180 INFO L470 AbstractCegarLoop]: Abstraction has 1522 states and 2185 transitions. [2021-12-22 15:09:04,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-22 15:09:04,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1522 states and 2185 transitions. [2021-12-22 15:09:04,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-22 15:09:04,186 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:09:04,186 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:09:04,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:09:04,187 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:09:04,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:09:04,187 INFO L85 PathProgramCache]: Analyzing trace with hash 184814678, now seen corresponding path program 1 times [2021-12-22 15:09:04,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:09:04,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352095367] [2021-12-22 15:09:04,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:09:04,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:09:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:09:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:09:04,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:09:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:09:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:04,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:09:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-22 15:09:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:04,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 15:09:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 15:09:04,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-22 15:09:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:04,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 15:09:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:04,738 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-12-22 15:09:04,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:09:04,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352095367] [2021-12-22 15:09:04,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352095367] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:09:04,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:09:04,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:09:04,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019122293] [2021-12-22 15:09:04,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:09:04,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:09:04,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:09:04,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:09:04,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:09:04,742 INFO L87 Difference]: Start difference. First operand 1522 states and 2185 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-12-22 15:09:10,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:09:10,087 INFO L93 Difference]: Finished difference Result 4193 states and 6061 transitions. [2021-12-22 15:09:10,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:09:10,088 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 163 [2021-12-22 15:09:10,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:09:10,107 INFO L225 Difference]: With dead ends: 4193 [2021-12-22 15:09:10,107 INFO L226 Difference]: Without dead ends: 2704 [2021-12-22 15:09:10,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:09:10,120 INFO L933 BasicCegarLoop]: 2223 mSDtfsCounter, 2714 mSDsluCounter, 3590 mSDsCounter, 0 mSdLazyCounter, 2143 mSolverCounterSat, 1681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2865 SdHoareTripleChecker+Valid, 5813 SdHoareTripleChecker+Invalid, 3824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1681 IncrementalHoareTripleChecker+Valid, 2143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-12-22 15:09:10,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2865 Valid, 5813 Invalid, 3824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1681 Valid, 2143 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-12-22 15:09:10,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2704 states. [2021-12-22 15:09:10,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2704 to 2463. [2021-12-22 15:09:10,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2463 states, 1720 states have (on average 1.3569767441860465) internal successors, (2334), 1782 states have internal predecessors, (2334), 598 states have call successors, (598), 145 states have call predecessors, (598), 144 states have return successors, (597), 560 states have call predecessors, (597), 597 states have call successors, (597) [2021-12-22 15:09:10,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2463 states to 2463 states and 3529 transitions. [2021-12-22 15:09:10,223 INFO L78 Accepts]: Start accepts. Automaton has 2463 states and 3529 transitions. Word has length 163 [2021-12-22 15:09:10,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:09:10,224 INFO L470 AbstractCegarLoop]: Abstraction has 2463 states and 3529 transitions. [2021-12-22 15:09:10,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-12-22 15:09:10,225 INFO L276 IsEmpty]: Start isEmpty. Operand 2463 states and 3529 transitions. [2021-12-22 15:09:10,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-22 15:09:10,228 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:09:10,228 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:09:10,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 15:09:10,228 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:09:10,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:09:10,229 INFO L85 PathProgramCache]: Analyzing trace with hash 971820423, now seen corresponding path program 1 times [2021-12-22 15:09:10,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:09:10,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979603341] [2021-12-22 15:09:10,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:09:10,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:09:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:09:10,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:09:10,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:10,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:09:10,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:10,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:09:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:10,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:10,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:09:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:10,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:10,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-22 15:09:10,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 15:09:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:10,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 15:09:10,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-22 15:09:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 15:09:10,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-22 15:09:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:10,754 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-12-22 15:09:10,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:09:10,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979603341] [2021-12-22 15:09:10,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979603341] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:09:10,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:09:10,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:09:10,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559098572] [2021-12-22 15:09:10,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:09:10,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:09:10,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:09:10,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:09:10,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:09:10,757 INFO L87 Difference]: Start difference. First operand 2463 states and 3529 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-22 15:09:16,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:09:16,174 INFO L93 Difference]: Finished difference Result 7010 states and 10136 transitions. [2021-12-22 15:09:16,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:09:16,175 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 167 [2021-12-22 15:09:16,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:09:16,195 INFO L225 Difference]: With dead ends: 7010 [2021-12-22 15:09:16,196 INFO L226 Difference]: Without dead ends: 4584 [2021-12-22 15:09:16,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:09:16,204 INFO L933 BasicCegarLoop]: 2361 mSDtfsCounter, 3217 mSDsluCounter, 3686 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 1882 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3382 SdHoareTripleChecker+Valid, 6047 SdHoareTripleChecker+Invalid, 4117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1882 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-12-22 15:09:16,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3382 Valid, 6047 Invalid, 4117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1882 Valid, 2235 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2021-12-22 15:09:16,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4584 states. [2021-12-22 15:09:16,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4584 to 4154. [2021-12-22 15:09:16,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4154 states, 2913 states have (on average 1.3724682457947133) internal successors, (3998), 3037 states have internal predecessors, (3998), 988 states have call successors, (988), 253 states have call predecessors, (988), 252 states have return successors, (987), 913 states have call predecessors, (987), 987 states have call successors, (987) [2021-12-22 15:09:16,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4154 states to 4154 states and 5973 transitions. [2021-12-22 15:09:16,365 INFO L78 Accepts]: Start accepts. Automaton has 4154 states and 5973 transitions. Word has length 167 [2021-12-22 15:09:16,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:09:16,366 INFO L470 AbstractCegarLoop]: Abstraction has 4154 states and 5973 transitions. [2021-12-22 15:09:16,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-22 15:09:16,366 INFO L276 IsEmpty]: Start isEmpty. Operand 4154 states and 5973 transitions. [2021-12-22 15:09:16,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-22 15:09:16,369 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:09:16,369 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:09:16,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 15:09:16,370 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:09:16,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:09:16,371 INFO L85 PathProgramCache]: Analyzing trace with hash -999731685, now seen corresponding path program 1 times [2021-12-22 15:09:16,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:09:16,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931884076] [2021-12-22 15:09:16,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:09:16,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:09:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:09:16,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:09:16,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:09:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:09:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:16,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:16,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:09:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-22 15:09:16,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:16,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 15:09:16,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 15:09:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-22 15:09:16,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 15:09:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:16,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-22 15:09:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:16,927 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-12-22 15:09:16,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:09:16,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931884076] [2021-12-22 15:09:16,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931884076] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:09:16,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:09:16,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:09:16,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010720665] [2021-12-22 15:09:16,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:09:16,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:09:16,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:09:16,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:09:16,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:09:16,930 INFO L87 Difference]: Start difference. First operand 4154 states and 5973 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-22 15:09:19,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:09:19,759 INFO L93 Difference]: Finished difference Result 5086 states and 7324 transitions. [2021-12-22 15:09:19,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:09:19,768 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 167 [2021-12-22 15:09:19,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:09:19,790 INFO L225 Difference]: With dead ends: 5086 [2021-12-22 15:09:19,790 INFO L226 Difference]: Without dead ends: 5083 [2021-12-22 15:09:19,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:09:19,793 INFO L933 BasicCegarLoop]: 2127 mSDtfsCounter, 3218 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 1004 mSolverCounterSat, 1740 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3390 SdHoareTripleChecker+Valid, 3433 SdHoareTripleChecker+Invalid, 2744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1740 IncrementalHoareTripleChecker+Valid, 1004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-22 15:09:19,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3390 Valid, 3433 Invalid, 2744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1740 Valid, 1004 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-22 15:09:19,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5083 states. [2021-12-22 15:09:19,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5083 to 4610. [2021-12-22 15:09:19,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4610 states, 3261 states have (on average 1.380558111008893) internal successors, (4502), 3391 states have internal predecessors, (4502), 1038 states have call successors, (1038), 319 states have call predecessors, (1038), 310 states have return successors, (1039), 953 states have call predecessors, (1039), 1037 states have call successors, (1039) [2021-12-22 15:09:19,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4610 states to 4610 states and 6579 transitions. [2021-12-22 15:09:19,924 INFO L78 Accepts]: Start accepts. Automaton has 4610 states and 6579 transitions. Word has length 167 [2021-12-22 15:09:19,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:09:19,925 INFO L470 AbstractCegarLoop]: Abstraction has 4610 states and 6579 transitions. [2021-12-22 15:09:19,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-22 15:09:19,925 INFO L276 IsEmpty]: Start isEmpty. Operand 4610 states and 6579 transitions. [2021-12-22 15:09:19,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-12-22 15:09:19,929 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:09:19,929 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-12-22 15:09:19,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 15:09:19,930 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:09:19,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:09:19,930 INFO L85 PathProgramCache]: Analyzing trace with hash 524624507, now seen corresponding path program 1 times [2021-12-22 15:09:19,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:09:19,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289127183] [2021-12-22 15:09:19,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:09:19,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:09:20,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:09:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:09:20,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:09:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:09:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:20,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:09:20,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:20,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:20,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-22 15:09:20,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:20,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 15:09:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 15:09:20,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:20,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-22 15:09:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:20,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 15:09:20,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-22 15:09:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-22 15:09:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:20,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-22 15:09:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-22 15:09:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-22 15:09:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-22 15:09:20,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:20,585 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2021-12-22 15:09:20,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:09:20,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289127183] [2021-12-22 15:09:20,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289127183] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:09:20,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:09:20,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-22 15:09:20,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485675068] [2021-12-22 15:09:20,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:09:20,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-22 15:09:20,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:09:20,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-22 15:09:20,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-12-22 15:09:20,588 INFO L87 Difference]: Start difference. First operand 4610 states and 6579 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-22 15:09:24,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:09:24,834 INFO L93 Difference]: Finished difference Result 10110 states and 14595 transitions. [2021-12-22 15:09:24,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 15:09:24,834 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 213 [2021-12-22 15:09:24,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:09:24,859 INFO L225 Difference]: With dead ends: 10110 [2021-12-22 15:09:24,860 INFO L226 Difference]: Without dead ends: 5547 [2021-12-22 15:09:24,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2021-12-22 15:09:24,873 INFO L933 BasicCegarLoop]: 1898 mSDtfsCounter, 4320 mSDsluCounter, 2417 mSDsCounter, 0 mSdLazyCounter, 2026 mSolverCounterSat, 3043 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4539 SdHoareTripleChecker+Valid, 4315 SdHoareTripleChecker+Invalid, 5069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3043 IncrementalHoareTripleChecker+Valid, 2026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-22 15:09:24,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4539 Valid, 4315 Invalid, 5069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3043 Valid, 2026 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-12-22 15:09:24,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5547 states. [2021-12-22 15:09:25,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5547 to 4614. [2021-12-22 15:09:25,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4614 states, 3266 states have (on average 1.3775260257195345) internal successors, (4499), 3394 states have internal predecessors, (4499), 1034 states have call successors, (1034), 320 states have call predecessors, (1034), 313 states have return successors, (1037), 953 states have call predecessors, (1037), 1033 states have call successors, (1037) [2021-12-22 15:09:25,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4614 states to 4614 states and 6570 transitions. [2021-12-22 15:09:25,039 INFO L78 Accepts]: Start accepts. Automaton has 4614 states and 6570 transitions. Word has length 213 [2021-12-22 15:09:25,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:09:25,040 INFO L470 AbstractCegarLoop]: Abstraction has 4614 states and 6570 transitions. [2021-12-22 15:09:25,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-22 15:09:25,041 INFO L276 IsEmpty]: Start isEmpty. Operand 4614 states and 6570 transitions. [2021-12-22 15:09:25,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-12-22 15:09:25,044 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:09:25,044 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-12-22 15:09:25,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 15:09:25,044 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:09:25,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:09:25,045 INFO L85 PathProgramCache]: Analyzing trace with hash 673112347, now seen corresponding path program 1 times [2021-12-22 15:09:25,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:09:25,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543312727] [2021-12-22 15:09:25,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:09:25,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:09:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:09:25,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:25,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:09:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:09:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:09:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:09:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:25,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-22 15:09:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 15:09:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 15:09:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:25,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-22 15:09:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 15:09:25,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-22 15:09:25,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-22 15:09:25,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-22 15:09:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-22 15:09:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-22 15:09:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-22 15:09:25,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:25,663 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2021-12-22 15:09:25,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:09:25,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543312727] [2021-12-22 15:09:25,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543312727] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:09:25,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:09:25,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-22 15:09:25,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301051056] [2021-12-22 15:09:25,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:09:25,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-22 15:09:25,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:09:25,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-22 15:09:25,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-12-22 15:09:25,667 INFO L87 Difference]: Start difference. First operand 4614 states and 6570 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-22 15:09:31,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:09:32,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:09:32,504 INFO L93 Difference]: Finished difference Result 10106 states and 14559 transitions. [2021-12-22 15:09:32,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 15:09:32,504 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 212 [2021-12-22 15:09:32,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:09:32,535 INFO L225 Difference]: With dead ends: 10106 [2021-12-22 15:09:32,535 INFO L226 Difference]: Without dead ends: 5543 [2021-12-22 15:09:32,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2021-12-22 15:09:32,551 INFO L933 BasicCegarLoop]: 1895 mSDtfsCounter, 4204 mSDsluCounter, 3365 mSDsCounter, 0 mSdLazyCounter, 3082 mSolverCounterSat, 2990 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4421 SdHoareTripleChecker+Valid, 5260 SdHoareTripleChecker+Invalid, 6072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2990 IncrementalHoareTripleChecker+Valid, 3082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-12-22 15:09:32,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4421 Valid, 5260 Invalid, 6072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2990 Valid, 3082 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2021-12-22 15:09:32,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5543 states. [2021-12-22 15:09:32,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5543 to 4610. [2021-12-22 15:09:32,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4610 states, 3266 states have (on average 1.3763012859767298) internal successors, (4495), 3390 states have internal predecessors, (4495), 1030 states have call successors, (1030), 320 states have call predecessors, (1030), 313 states have return successors, (1033), 953 states have call predecessors, (1033), 1029 states have call successors, (1033) [2021-12-22 15:09:32,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4610 states to 4610 states and 6558 transitions. [2021-12-22 15:09:32,703 INFO L78 Accepts]: Start accepts. Automaton has 4610 states and 6558 transitions. Word has length 212 [2021-12-22 15:09:32,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:09:32,704 INFO L470 AbstractCegarLoop]: Abstraction has 4610 states and 6558 transitions. [2021-12-22 15:09:32,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-22 15:09:32,704 INFO L276 IsEmpty]: Start isEmpty. Operand 4610 states and 6558 transitions. [2021-12-22 15:09:32,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-12-22 15:09:32,707 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:09:32,707 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-12-22 15:09:32,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 15:09:32,707 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:09:32,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:09:32,708 INFO L85 PathProgramCache]: Analyzing trace with hash 194956422, now seen corresponding path program 1 times [2021-12-22 15:09:32,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:09:32,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604284247] [2021-12-22 15:09:32,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:09:32,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:09:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:32,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:09:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:32,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:32,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:32,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:09:32,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:32,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:32,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:32,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:09:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:32,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:32,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:32,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:32,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:32,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:09:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:32,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:32,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:32,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:32,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:33,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:09:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:33,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:33,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:33,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-22 15:09:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:33,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:33,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:33,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 15:09:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:33,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:33,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:33,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 15:09:33,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:33,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:33,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:33,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-22 15:09:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:33,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:33,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:33,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 15:09:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:33,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:33,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:33,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-22 15:09:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:33,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:33,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:33,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:33,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:33,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-22 15:09:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:33,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-22 15:09:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:33,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-22 15:09:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:33,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-22 15:09:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:33,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-22 15:09:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:33,200 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2021-12-22 15:09:33,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:09:33,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604284247] [2021-12-22 15:09:33,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604284247] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:09:33,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:09:33,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-22 15:09:33,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278617262] [2021-12-22 15:09:33,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:09:33,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-22 15:09:33,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:09:33,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-22 15:09:33,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-12-22 15:09:33,202 INFO L87 Difference]: Start difference. First operand 4610 states and 6558 transitions. Second operand has 10 states, 10 states have (on average 7.6) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (26), 7 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)