./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 0f8a17c6 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 0.2.1-dev-0f8a17c [2021-11-17 04:51:41,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 04:51:41,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 04:51:41,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 04:51:41,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 04:51:41,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 04:51:41,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 04:51:41,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 04:51:41,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 04:51:41,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 04:51:41,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 04:51:41,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 04:51:41,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 04:51:41,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 04:51:41,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 04:51:41,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 04:51:41,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 04:51:41,611 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 04:51:41,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 04:51:41,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 04:51:41,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 04:51:41,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 04:51:41,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 04:51:41,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 04:51:41,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 04:51:41,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 04:51:41,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 04:51:41,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 04:51:41,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 04:51:41,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 04:51:41,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 04:51:41,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 04:51:41,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 04:51:41,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 04:51:41,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 04:51:41,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 04:51:41,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 04:51:41,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 04:51:41,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 04:51:41,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 04:51:41,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 04:51:41,642 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 04:51:41,657 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 04:51:41,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 04:51:41,658 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 04:51:41,658 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 04:51:41,658 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 04:51:41,658 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 04:51:41,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 04:51:41,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 04:51:41,659 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 04:51:41,659 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 04:51:41,659 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 04:51:41,659 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 04:51:41,660 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 04:51:41,660 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 04:51:41,660 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 04:51:41,660 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 04:51:41,660 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 04:51:41,660 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 04:51:41,660 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 04:51:41,661 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 04:51:41,661 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 04:51:41,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 04:51:41,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 04:51:41,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 04:51:41,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 04:51:41,661 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 04:51:41,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 04:51:41,662 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 04:51:41,662 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 04:51:41,662 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 04:51:41,662 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 04:51:41,662 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b829e0b1083ca135908ac8582697cf0831b43587b46e1b9cc42429c7a2c7866 [2021-11-17 04:51:41,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 04:51:41,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 04:51:41,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 04:51:41,878 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 04:51:41,878 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 04:51:41,879 INFO L432 ainManager$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 [2021-11-17 04:51:41,937 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4407caca2/c1f1c1a0fb644fc2ba8c5b5a38029500/FLAG75a85ee45 [2021-11-17 04:51:42,551 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 04:51:42,552 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 [2021-11-17 04:51:42,599 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4407caca2/c1f1c1a0fb644fc2ba8c5b5a38029500/FLAG75a85ee45 [2021-11-17 04:51:42,685 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4407caca2/c1f1c1a0fb644fc2ba8c5b5a38029500 [2021-11-17 04:51:42,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 04:51:42,689 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 04:51:42,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 04:51:42,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 04:51:42,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 04:51:42,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 04:51:42" (1/1) ... [2021-11-17 04:51:42,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1696f8d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:51:42, skipping insertion in model container [2021-11-17 04:51:42,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 04:51:42" (1/1) ... [2021-11-17 04:51:42,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 04:51:42,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 04:51:44,871 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] [2021-11-17 04:51:44,933 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 04:51:45,035 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 04:51:45,436 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] [2021-11-17 04:51:45,441 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 04:51:45,608 INFO L208 MainTranslator]: Completed translation [2021-11-17 04:51:45,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:51:45 WrapperNode [2021-11-17 04:51:45,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 04:51:45,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 04:51:45,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 04:51:45,612 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 04:51:45,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:51:45" (1/1) ... [2021-11-17 04:51:45,705 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:51:45" (1/1) ... [2021-11-17 04:51:45,848 INFO L137 Inliner]: procedures = 341, calls = 3940, calls flagged for inlining = 136, calls inlined = 92, statements flattened = 5416 [2021-11-17 04:51:45,851 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 04:51:45,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 04:51:45,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 04:51:45,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 04:51:45,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:51:45" (1/1) ... [2021-11-17 04:51:45,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:51:45" (1/1) ... [2021-11-17 04:51:45,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:51:45" (1/1) ... [2021-11-17 04:51:45,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:51:45" (1/1) ... [2021-11-17 04:51:46,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:51:45" (1/1) ... [2021-11-17 04:51:46,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:51:45" (1/1) ... [2021-11-17 04:51:46,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:51:45" (1/1) ... [2021-11-17 04:51:46,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 04:51:46,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 04:51:46,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 04:51:46,123 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 04:51:46,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:51:45" (1/1) ... [2021-11-17 04:51:46,130 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 04:51:46,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 04:51:46,151 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) [2021-11-17 04:51:46,167 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 [2021-11-17 04:51:46,193 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2021-11-17 04:51:46,193 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2021-11-17 04:51:46,193 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2021-11-17 04:51:46,194 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2021-11-17 04:51:46,194 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-17 04:51:46,194 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-17 04:51:46,194 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2021-11-17 04:51:46,194 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2021-11-17 04:51:46,194 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-17 04:51:46,194 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-17 04:51:46,194 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2021-11-17 04:51:46,194 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2021-11-17 04:51:46,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 04:51:46,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 04:51:46,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 04:51:46,195 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 04:51:46,195 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2021-11-17 04:51:46,195 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2021-11-17 04:51:46,195 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2021-11-17 04:51:46,195 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2021-11-17 04:51:46,195 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2021-11-17 04:51:46,196 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2021-11-17 04:51:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2021-11-17 04:51:46,196 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2021-11-17 04:51:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-17 04:51:46,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-17 04:51:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 04:51:46,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 04:51:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2021-11-17 04:51:46,196 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2021-11-17 04:51:46,197 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2021-11-17 04:51:46,197 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2021-11-17 04:51:46,197 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2021-11-17 04:51:46,197 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2021-11-17 04:51:46,197 INFO L130 BoogieDeclarations]: Found specification of procedure freeurbs [2021-11-17 04:51:46,197 INFO L138 BoogieDeclarations]: Found implementation of procedure freeurbs [2021-11-17 04:51:46,197 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_down [2021-11-17 04:51:46,197 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_down [2021-11-17 04:51:46,197 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-11-17 04:51:46,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-11-17 04:51:46,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 04:51:46,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 04:51:46,198 INFO L130 BoogieDeclarations]: Found specification of procedure start_cbsend [2021-11-17 04:51:46,198 INFO L138 BoogieDeclarations]: Found implementation of procedure start_cbsend [2021-11-17 04:51:46,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 04:51:46,198 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 04:51:46,198 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2021-11-17 04:51:46,198 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2021-11-17 04:51:46,199 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 04:51:46,199 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 04:51:46,199 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-11-17 04:51:46,199 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-11-17 04:51:46,199 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2021-11-17 04:51:46,200 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2021-11-17 04:51:46,200 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2021-11-17 04:51:46,200 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2021-11-17 04:51:46,200 INFO L130 BoogieDeclarations]: Found specification of procedure usb_queue_reset_device [2021-11-17 04:51:46,201 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_queue_reset_device [2021-11-17 04:51:46,201 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 04:51:46,202 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 04:51:46,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2021-11-17 04:51:46,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2021-11-17 04:51:46,202 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2021-11-17 04:51:46,202 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2021-11-17 04:51:46,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2021-11-17 04:51:46,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2021-11-17 04:51:46,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2021-11-17 04:51:46,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2021-11-17 04:51:46,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 04:51:46,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_5 [2021-11-17 04:51:46,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_5 [2021-11-17 04:51:46,203 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-17 04:51:46,203 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-17 04:51:46,204 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2021-11-17 04:51:46,204 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2021-11-17 04:51:46,204 INFO L130 BoogieDeclarations]: Found specification of procedure check_pending [2021-11-17 04:51:46,204 INFO L138 BoogieDeclarations]: Found implementation of procedure check_pending [2021-11-17 04:51:46,204 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-17 04:51:46,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 04:51:46,205 INFO L130 BoogieDeclarations]: Found specification of procedure error_hangup [2021-11-17 04:51:46,205 INFO L138 BoogieDeclarations]: Found implementation of procedure error_hangup [2021-11-17 04:51:46,205 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2021-11-17 04:51:46,205 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2021-11-17 04:51:46,205 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_send_skb [2021-11-17 04:51:46,205 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_send_skb [2021-11-17 04:51:46,205 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2021-11-17 04:51:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2021-11-17 04:51:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 04:51:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 04:51:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure req_submit [2021-11-17 04:51:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure req_submit [2021-11-17 04:51:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 04:51:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2021-11-17 04:51:46,207 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2021-11-17 04:51:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 04:51:46,208 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2021-11-17 04:51:46,208 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2021-11-17 04:51:46,208 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-17 04:51:46,208 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-17 04:51:46,208 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-17 04:51:46,209 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-17 04:51:46,209 INFO L130 BoogieDeclarations]: Found specification of procedure complete_cb [2021-11-17 04:51:46,209 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_cb [2021-11-17 04:51:46,209 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-17 04:51:46,209 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-17 04:51:46,209 INFO L130 BoogieDeclarations]: Found specification of procedure stopurbs [2021-11-17 04:51:46,209 INFO L138 BoogieDeclarations]: Found implementation of procedure stopurbs [2021-11-17 04:51:46,209 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2021-11-17 04:51:46,210 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2021-11-17 04:51:46,210 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-17 04:51:46,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-17 04:51:46,210 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2021-11-17 04:51:46,210 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2021-11-17 04:51:46,210 INFO L130 BoogieDeclarations]: Found specification of procedure int_in_work [2021-11-17 04:51:46,210 INFO L138 BoogieDeclarations]: Found implementation of procedure int_in_work [2021-11-17 04:51:46,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 04:51:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure dump_urb [2021-11-17 04:51:46,211 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_urb [2021-11-17 04:51:46,212 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-17 04:51:46,213 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-17 04:51:46,213 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-17 04:51:46,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-17 04:51:46,214 INFO L130 BoogieDeclarations]: Found specification of procedure atwrite_submit [2021-11-17 04:51:46,215 INFO L138 BoogieDeclarations]: Found implementation of procedure atwrite_submit [2021-11-17 04:51:46,215 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_3 [2021-11-17 04:51:46,216 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_3 [2021-11-17 04:51:46,216 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-17 04:51:46,216 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-17 04:51:46,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-17 04:51:46,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-17 04:51:46,220 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-11-17 04:51:46,220 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-11-17 04:51:46,220 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2021-11-17 04:51:46,220 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2021-11-17 04:51:46,220 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 04:51:46,220 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 04:51:46,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 04:51:46,220 INFO L130 BoogieDeclarations]: Found specification of procedure get_usb_rcmsg [2021-11-17 04:51:46,221 INFO L138 BoogieDeclarations]: Found implementation of procedure get_usb_rcmsg [2021-11-17 04:51:46,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 04:51:46,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 04:51:46,221 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2021-11-17 04:51:46,221 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2021-11-17 04:51:46,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-17 04:51:46,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-17 04:51:46,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 04:51:46,221 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-17 04:51:46,221 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-17 04:51:46,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-17 04:51:46,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-17 04:51:46,222 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2021-11-17 04:51:46,222 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2021-11-17 04:51:46,222 INFO L130 BoogieDeclarations]: Found specification of procedure error_reset [2021-11-17 04:51:46,222 INFO L138 BoogieDeclarations]: Found implementation of procedure error_reset [2021-11-17 04:51:46,222 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_input [2021-11-17 04:51:46,223 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_input [2021-11-17 04:51:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2021-11-17 04:51:46,223 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2021-11-17 04:51:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 04:51:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2021-11-17 04:51:46,223 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2021-11-17 04:51:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 04:51:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2021-11-17 04:51:46,223 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2021-11-17 04:51:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-11-17 04:51:46,224 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-11-17 04:51:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-11-17 04:51:46,224 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-11-17 04:51:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-17 04:51:46,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-17 04:51:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2021-11-17 04:51:46,224 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2021-11-17 04:51:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-17 04:51:46,224 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-17 04:51:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-11-17 04:51:46,225 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-11-17 04:51:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-11-17 04:51:46,225 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-11-17 04:51:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure update_basstate [2021-11-17 04:51:46,225 INFO L138 BoogieDeclarations]: Found implementation of procedure update_basstate [2021-11-17 04:51:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-11-17 04:51:46,225 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-11-17 04:51:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 04:51:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure atread_submit [2021-11-17 04:51:46,225 INFO L138 BoogieDeclarations]: Found implementation of procedure atread_submit [2021-11-17 04:51:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2021-11-17 04:51:46,226 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2021-11-17 04:51:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-17 04:51:46,226 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-17 04:51:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 04:51:46,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 04:51:46,718 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 04:51:46,721 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 04:51:46,982 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 04:51:52,672 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 04:51:52,700 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 04:51:52,701 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 04:51:52,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 04:51:52 BoogieIcfgContainer [2021-11-17 04:51:52,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 04:51:52,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 04:51:52,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 04:51:52,710 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 04:51:52,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 04:51:42" (1/3) ... [2021-11-17 04:51:52,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44469e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 04:51:52, skipping insertion in model container [2021-11-17 04:51:52,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:51:45" (2/3) ... [2021-11-17 04:51:52,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44469e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 04:51:52, skipping insertion in model container [2021-11-17 04:51:52,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 04:51:52" (3/3) ... [2021-11-17 04:51:52,714 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2021-11-17 04:51:52,718 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 04:51:52,718 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 04:51:52,754 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 04:51:52,759 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 [2021-11-17 04:51:52,759 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 04:51:52,793 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) [2021-11-17 04:51:52,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-17 04:51:52,808 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:51:52,809 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] [2021-11-17 04:51:52,810 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:51:52,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:51:52,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1429373024, now seen corresponding path program 1 times [2021-11-17 04:51:52,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:51:52,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252750659] [2021-11-17 04:51:52,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:51:52,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:51:53,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:51:53,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:51:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:51:53,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:51:53,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:51:53,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:51:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:51:53,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:51:53,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:51:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:51:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:51:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:51:53,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:51:53,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:51:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:51:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 04:51:53,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:51:53,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 04:51:53,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:51:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 04:51:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:51:53,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 04:51:53,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:51:53,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 04:51:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:51:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:53,619 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-11-17 04:51:53,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:51:53,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252750659] [2021-11-17 04:51:53,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252750659] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:51:53,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:51:53,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 04:51:53,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178124500] [2021-11-17 04:51:53,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:51:53,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 04:51:53,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:51:53,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 04:51:53,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 04:51:53,663 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) [2021-11-17 04:51:59,064 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:52:00,336 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:52:00,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:52:00,880 INFO L93 Difference]: Finished difference Result 3312 states and 4895 transitions. [2021-11-17 04:52:00,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 04:52:00,883 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 [2021-11-17 04:52:00,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:52:00,901 INFO L225 Difference]: With dead ends: 3312 [2021-11-17 04:52:00,901 INFO L226 Difference]: Without dead ends: 1671 [2021-11-17 04:52:00,920 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 [2021-11-17 04:52:00,923 INFO L933 BasicCegarLoop]: 2115 mSDtfsCounter, 1011 mSDsluCounter, 1958 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 1022 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 4073 SdHoareTripleChecker+Invalid, 2258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1022 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2021-11-17 04:52:00,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1019 Valid, 4073 Invalid, 2258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1022 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2021-11-17 04:52:00,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2021-11-17 04:52:01,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1522. [2021-11-17 04:52:01,064 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) [2021-11-17 04:52:01,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1522 states to 1522 states and 2185 transitions. [2021-11-17 04:52:01,079 INFO L78 Accepts]: Start accepts. Automaton has 1522 states and 2185 transitions. Word has length 163 [2021-11-17 04:52:01,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:52:01,079 INFO L470 AbstractCegarLoop]: Abstraction has 1522 states and 2185 transitions. [2021-11-17 04:52:01,080 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) [2021-11-17 04:52:01,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1522 states and 2185 transitions. [2021-11-17 04:52:01,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-17 04:52:01,089 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:52:01,090 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] [2021-11-17 04:52:01,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 04:52:01,090 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:52:01,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:52:01,091 INFO L85 PathProgramCache]: Analyzing trace with hash 184814678, now seen corresponding path program 1 times [2021-11-17 04:52:01,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:52:01,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976691783] [2021-11-17 04:52:01,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:52:01,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:52:01,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:52:01,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:52:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:01,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:01,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:52:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:52:01,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:01,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:01,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:52:01,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:01,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 04:52:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 04:52:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 04:52:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 04:52:01,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:01,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 04:52:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:01,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:01,606 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-11-17 04:52:01,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:52:01,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976691783] [2021-11-17 04:52:01,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976691783] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:52:01,607 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:52:01,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:52:01,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401041120] [2021-11-17 04:52:01,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:52:01,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:52:01,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:52:01,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:52:01,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:52:01,612 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) [2021-11-17 04:52:04,312 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:52:09,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:52:09,317 INFO L93 Difference]: Finished difference Result 4193 states and 6061 transitions. [2021-11-17 04:52:09,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:52:09,318 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 [2021-11-17 04:52:09,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:52:09,331 INFO L225 Difference]: With dead ends: 4193 [2021-11-17 04:52:09,331 INFO L226 Difference]: Without dead ends: 2704 [2021-11-17 04:52:09,337 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 [2021-11-17 04:52:09,338 INFO L933 BasicCegarLoop]: 2214 mSDtfsCounter, 2718 mSDsluCounter, 3587 mSDsCounter, 0 mSdLazyCounter, 2131 mSolverCounterSat, 1683 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2871 SdHoareTripleChecker+Valid, 5801 SdHoareTripleChecker+Invalid, 3815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1683 IncrementalHoareTripleChecker+Valid, 2131 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-17 04:52:09,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2871 Valid, 5801 Invalid, 3815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1683 Valid, 2131 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2021-11-17 04:52:09,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2704 states. [2021-11-17 04:52:09,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2704 to 2463. [2021-11-17 04:52:09,404 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) [2021-11-17 04:52:09,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2463 states to 2463 states and 3529 transitions. [2021-11-17 04:52:09,414 INFO L78 Accepts]: Start accepts. Automaton has 2463 states and 3529 transitions. Word has length 163 [2021-11-17 04:52:09,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:52:09,415 INFO L470 AbstractCegarLoop]: Abstraction has 2463 states and 3529 transitions. [2021-11-17 04:52:09,415 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) [2021-11-17 04:52:09,415 INFO L276 IsEmpty]: Start isEmpty. Operand 2463 states and 3529 transitions. [2021-11-17 04:52:09,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-17 04:52:09,417 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:52:09,417 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] [2021-11-17 04:52:09,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 04:52:09,417 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:52:09,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:52:09,418 INFO L85 PathProgramCache]: Analyzing trace with hash 971820423, now seen corresponding path program 1 times [2021-11-17 04:52:09,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:52:09,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552998791] [2021-11-17 04:52:09,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:52:09,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:52:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:52:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:52:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:52:09,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:09,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:52:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:52:09,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 04:52:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:09,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 04:52:09,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 04:52:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 04:52:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:09,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 04:52:09,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:09,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 04:52:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:09,937 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-11-17 04:52:09,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:52:09,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552998791] [2021-11-17 04:52:09,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552998791] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:52:09,937 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:52:09,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:52:09,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439539462] [2021-11-17 04:52:09,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:52:09,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:52:09,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:52:09,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:52:09,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:52:09,940 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) [2021-11-17 04:52:12,007 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:52:17,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:52:17,800 INFO L93 Difference]: Finished difference Result 7010 states and 10136 transitions. [2021-11-17 04:52:17,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:52:17,800 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 [2021-11-17 04:52:17,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:52:17,823 INFO L225 Difference]: With dead ends: 7010 [2021-11-17 04:52:17,823 INFO L226 Difference]: Without dead ends: 4584 [2021-11-17 04:52:17,832 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 [2021-11-17 04:52:17,833 INFO L933 BasicCegarLoop]: 2359 mSDtfsCounter, 3217 mSDsluCounter, 3682 mSDsCounter, 0 mSdLazyCounter, 2233 mSolverCounterSat, 1882 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3384 SdHoareTripleChecker+Valid, 6041 SdHoareTripleChecker+Invalid, 4116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1882 IncrementalHoareTripleChecker+Valid, 2233 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-11-17 04:52:17,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3384 Valid, 6041 Invalid, 4116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1882 Valid, 2233 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2021-11-17 04:52:17,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4584 states. [2021-11-17 04:52:17,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4584 to 4154. [2021-11-17 04:52:17,935 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) [2021-11-17 04:52:17,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4154 states to 4154 states and 5973 transitions. [2021-11-17 04:52:17,949 INFO L78 Accepts]: Start accepts. Automaton has 4154 states and 5973 transitions. Word has length 167 [2021-11-17 04:52:17,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:52:17,949 INFO L470 AbstractCegarLoop]: Abstraction has 4154 states and 5973 transitions. [2021-11-17 04:52:17,949 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) [2021-11-17 04:52:17,950 INFO L276 IsEmpty]: Start isEmpty. Operand 4154 states and 5973 transitions. [2021-11-17 04:52:17,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-17 04:52:17,952 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:52:17,952 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] [2021-11-17 04:52:17,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 04:52:17,953 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:52:17,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:52:17,953 INFO L85 PathProgramCache]: Analyzing trace with hash -999731685, now seen corresponding path program 1 times [2021-11-17 04:52:17,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:52:17,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778024346] [2021-11-17 04:52:17,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:52:17,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:52:18,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:52:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:52:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:18,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:52:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:52:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:18,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:52:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 04:52:18,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:18,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 04:52:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:18,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 04:52:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:18,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 04:52:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:18,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 04:52:18,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:18,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 04:52:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:18,450 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-11-17 04:52:18,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:52:18,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778024346] [2021-11-17 04:52:18,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778024346] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:52:18,451 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:52:18,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:52:18,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744326616] [2021-11-17 04:52:18,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:52:18,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:52:18,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:52:18,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:52:18,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:52:18,453 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) [2021-11-17 04:52:19,851 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:52:22,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:52:22,732 INFO L93 Difference]: Finished difference Result 5086 states and 7324 transitions. [2021-11-17 04:52:22,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:52:22,732 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 [2021-11-17 04:52:22,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:52:22,762 INFO L225 Difference]: With dead ends: 5086 [2021-11-17 04:52:22,762 INFO L226 Difference]: Without dead ends: 5083 [2021-11-17 04:52:22,765 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 [2021-11-17 04:52:22,766 INFO L933 BasicCegarLoop]: 2127 mSDtfsCounter, 3218 mSDsluCounter, 1305 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 1740 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3389 SdHoareTripleChecker+Valid, 3432 SdHoareTripleChecker+Invalid, 2745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1740 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-11-17 04:52:22,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3389 Valid, 3432 Invalid, 2745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1740 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-11-17 04:52:22,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5083 states. [2021-11-17 04:52:22,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5083 to 4610. [2021-11-17 04:52:22,951 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) [2021-11-17 04:52:22,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4610 states to 4610 states and 6579 transitions. [2021-11-17 04:52:22,964 INFO L78 Accepts]: Start accepts. Automaton has 4610 states and 6579 transitions. Word has length 167 [2021-11-17 04:52:22,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:52:22,965 INFO L470 AbstractCegarLoop]: Abstraction has 4610 states and 6579 transitions. [2021-11-17 04:52:22,965 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) [2021-11-17 04:52:22,966 INFO L276 IsEmpty]: Start isEmpty. Operand 4610 states and 6579 transitions. [2021-11-17 04:52:22,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-11-17 04:52:22,969 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:52:22,969 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] [2021-11-17 04:52:22,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 04:52:22,969 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:52:22,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:52:22,970 INFO L85 PathProgramCache]: Analyzing trace with hash 524624507, now seen corresponding path program 1 times [2021-11-17 04:52:22,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:52:22,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583268206] [2021-11-17 04:52:22,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:52:22,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:52:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:52:23,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:23,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:23,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:52:23,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:23,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:23,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:52:23,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:23,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:52:23,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:23,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:52:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:23,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:23,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 04:52:23,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 04:52:23,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:23,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 04:52:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:23,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 04:52:23,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 04:52:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 04:52:23,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 04:52:23,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 04:52:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 04:52:23,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 04:52:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 04:52:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:23,429 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2021-11-17 04:52:23,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:52:23,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583268206] [2021-11-17 04:52:23,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583268206] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:52:23,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:52:23,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-17 04:52:23,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607935354] [2021-11-17 04:52:23,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:52:23,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-17 04:52:23,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:52:23,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-17 04:52:23,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-11-17 04:52:23,431 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) [2021-11-17 04:52:26,328 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:52:28,627 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:52:33,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:52:33,184 INFO L93 Difference]: Finished difference Result 10110 states and 14595 transitions. [2021-11-17 04:52:33,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-17 04:52:33,185 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 [2021-11-17 04:52:33,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:52:33,210 INFO L225 Difference]: With dead ends: 10110 [2021-11-17 04:52:33,210 INFO L226 Difference]: Without dead ends: 5547 [2021-11-17 04:52:33,224 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 [2021-11-17 04:52:33,225 INFO L933 BasicCegarLoop]: 1898 mSDtfsCounter, 4320 mSDsluCounter, 2416 mSDsCounter, 0 mSdLazyCounter, 2023 mSolverCounterSat, 3044 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4539 SdHoareTripleChecker+Valid, 4314 SdHoareTripleChecker+Invalid, 5069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3044 IncrementalHoareTripleChecker+Valid, 2023 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2021-11-17 04:52:33,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4539 Valid, 4314 Invalid, 5069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3044 Valid, 2023 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time] [2021-11-17 04:52:33,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5547 states. [2021-11-17 04:52:33,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5547 to 4614. [2021-11-17 04:52:33,369 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) [2021-11-17 04:52:33,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4614 states to 4614 states and 6570 transitions. [2021-11-17 04:52:33,382 INFO L78 Accepts]: Start accepts. Automaton has 4614 states and 6570 transitions. Word has length 213 [2021-11-17 04:52:33,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:52:33,383 INFO L470 AbstractCegarLoop]: Abstraction has 4614 states and 6570 transitions. [2021-11-17 04:52:33,383 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) [2021-11-17 04:52:33,384 INFO L276 IsEmpty]: Start isEmpty. Operand 4614 states and 6570 transitions. [2021-11-17 04:52:33,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-11-17 04:52:33,386 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:52:33,386 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] [2021-11-17 04:52:33,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 04:52:33,387 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:52:33,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:52:33,387 INFO L85 PathProgramCache]: Analyzing trace with hash 673112347, now seen corresponding path program 1 times [2021-11-17 04:52:33,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:52:33,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229113384] [2021-11-17 04:52:33,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:52:33,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:52:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:52:33,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:52:33,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:52:33,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:52:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:52:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 04:52:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 04:52:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:33,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 04:52:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 04:52:33,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:33,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 04:52:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:33,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 04:52:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 04:52:33,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:33,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:33,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 04:52:33,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 04:52:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 04:52:33,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 04:52:33,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:33,899 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2021-11-17 04:52:33,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:52:33,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229113384] [2021-11-17 04:52:33,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229113384] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:52:33,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:52:33,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-17 04:52:33,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919462556] [2021-11-17 04:52:33,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:52:33,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-17 04:52:33,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:52:33,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-17 04:52:33,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-11-17 04:52:33,901 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) [2021-11-17 04:52:34,913 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:52:36,946 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:52:39,012 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:52:41,085 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:52:43,143 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:52:48,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:52:48,879 INFO L93 Difference]: Finished difference Result 10106 states and 14559 transitions. [2021-11-17 04:52:48,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-17 04:52:48,879 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 [2021-11-17 04:52:48,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:52:48,905 INFO L225 Difference]: With dead ends: 10106 [2021-11-17 04:52:48,905 INFO L226 Difference]: Without dead ends: 5543 [2021-11-17 04:52:48,920 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 [2021-11-17 04:52:48,921 INFO L933 BasicCegarLoop]: 1892 mSDtfsCounter, 4206 mSDsluCounter, 3357 mSDsCounter, 0 mSdLazyCounter, 3062 mSolverCounterSat, 2995 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4424 SdHoareTripleChecker+Valid, 5249 SdHoareTripleChecker+Invalid, 6061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2995 IncrementalHoareTripleChecker+Valid, 3062 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2021-11-17 04:52:48,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4424 Valid, 5249 Invalid, 6061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2995 Valid, 3062 Invalid, 4 Unknown, 0 Unchecked, 14.6s Time] [2021-11-17 04:52:48,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5543 states. [2021-11-17 04:52:49,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5543 to 4610. [2021-11-17 04:52:49,111 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) [2021-11-17 04:52:49,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4610 states to 4610 states and 6558 transitions. [2021-11-17 04:52:49,124 INFO L78 Accepts]: Start accepts. Automaton has 4610 states and 6558 transitions. Word has length 212 [2021-11-17 04:52:49,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:52:49,125 INFO L470 AbstractCegarLoop]: Abstraction has 4610 states and 6558 transitions. [2021-11-17 04:52:49,125 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) [2021-11-17 04:52:49,125 INFO L276 IsEmpty]: Start isEmpty. Operand 4610 states and 6558 transitions. [2021-11-17 04:52:49,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-11-17 04:52:49,130 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:52:49,130 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] [2021-11-17 04:52:49,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 04:52:49,131 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:52:49,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:52:49,131 INFO L85 PathProgramCache]: Analyzing trace with hash 194956422, now seen corresponding path program 1 times [2021-11-17 04:52:49,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:52:49,131 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365687116] [2021-11-17 04:52:49,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:52:49,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:52:49,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:52:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:52:49,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:49,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:52:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:49,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:49,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:52:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:52:49,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:49,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 04:52:49,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:49,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 04:52:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:49,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 04:52:49,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 04:52:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:49,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 04:52:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 04:52:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 04:52:49,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 04:52:49,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 04:52:49,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 04:52:49,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 04:52:49,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:49,523 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2021-11-17 04:52:49,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:52:49,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365687116] [2021-11-17 04:52:49,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365687116] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:52:49,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:52:49,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-17 04:52:49,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150392855] [2021-11-17 04:52:49,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:52:49,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 04:52:49,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:52:49,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 04:52:49,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-17 04:52:49,525 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) [2021-11-17 04:52:51,590 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:53:03,764 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:53:09,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:53:09,864 INFO L93 Difference]: Finished difference Result 24796 states and 36515 transitions. [2021-11-17 04:53:09,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-17 04:53:09,865 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 211 [2021-11-17 04:53:09,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:53:09,943 INFO L225 Difference]: With dead ends: 24796 [2021-11-17 04:53:09,944 INFO L226 Difference]: Without dead ends: 20237 [2021-11-17 04:53:09,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=209, Invalid=493, Unknown=0, NotChecked=0, Total=702 [2021-11-17 04:53:09,966 INFO L933 BasicCegarLoop]: 2694 mSDtfsCounter, 9279 mSDsluCounter, 8538 mSDsCounter, 0 mSdLazyCounter, 11086 mSolverCounterSat, 5047 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9943 SdHoareTripleChecker+Valid, 11232 SdHoareTripleChecker+Invalid, 16134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5047 IncrementalHoareTripleChecker+Valid, 11086 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2021-11-17 04:53:09,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9943 Valid, 11232 Invalid, 16134 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5047 Valid, 11086 Invalid, 1 Unknown, 0 Unchecked, 19.3s Time] [2021-11-17 04:53:09,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20237 states. [2021-11-17 04:53:10,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20237 to 18360. [2021-11-17 04:53:10,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18360 states, 13008 states have (on average 1.3738468634686347) internal successors, (17871), 13522 states have internal predecessors, (17871), 4080 states have call successors, (4080), 1262 states have call predecessors, (4080), 1271 states have return successors, (4697), 3803 states have call predecessors, (4697), 4079 states have call successors, (4697) [2021-11-17 04:53:10,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18360 states to 18360 states and 26648 transitions. [2021-11-17 04:53:10,651 INFO L78 Accepts]: Start accepts. Automaton has 18360 states and 26648 transitions. Word has length 211 [2021-11-17 04:53:10,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:53:10,653 INFO L470 AbstractCegarLoop]: Abstraction has 18360 states and 26648 transitions. [2021-11-17 04:53:10,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-11-17 04:53:10,653 INFO L276 IsEmpty]: Start isEmpty. Operand 18360 states and 26648 transitions. [2021-11-17 04:53:10,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-11-17 04:53:10,658 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:53:10,659 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] [2021-11-17 04:53:10,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 04:53:10,659 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:53:10,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:53:10,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1613612979, now seen corresponding path program 1 times [2021-11-17 04:53:10,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:53:10,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203422819] [2021-11-17 04:53:10,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:53:10,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:53:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:10,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:53:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:10,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:10,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:53:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:10,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:53:10,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:10,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:10,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:10,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:53:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:10,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:53:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:11,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:53:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:53:11,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:53:11,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:53:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:53:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 04:53:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 04:53:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 04:53:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 04:53:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 04:53:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:11,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:53:11,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:53:11,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:11,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:53:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 04:53:11,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 04:53:11,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 04:53:11,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 04:53:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:11,178 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2021-11-17 04:53:11,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:53:11,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203422819] [2021-11-17 04:53:11,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203422819] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:53:11,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:53:11,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-17 04:53:11,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483869874] [2021-11-17 04:53:11,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:53:11,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-17 04:53:11,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:53:11,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-17 04:53:11,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-11-17 04:53:11,180 INFO L87 Difference]: Start difference. First operand 18360 states and 26648 transitions. Second operand has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 5 states have internal predecessors, (78), 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) [2021-11-17 04:53:13,246 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:53:15,304 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:53:16,692 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:53:21,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:53:21,651 INFO L93 Difference]: Finished difference Result 40217 states and 59035 transitions. [2021-11-17 04:53:21,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-17 04:53:21,652 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 5 states have internal predecessors, (78), 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 211 [2021-11-17 04:53:21,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:53:21,728 INFO L225 Difference]: With dead ends: 40217 [2021-11-17 04:53:21,728 INFO L226 Difference]: Without dead ends: 21908 [2021-11-17 04:53:21,772 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 [2021-11-17 04:53:21,772 INFO L933 BasicCegarLoop]: 1897 mSDtfsCounter, 5473 mSDsluCounter, 2403 mSDsCounter, 0 mSdLazyCounter, 2118 mSolverCounterSat, 3539 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5687 SdHoareTripleChecker+Valid, 4300 SdHoareTripleChecker+Invalid, 5659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3539 IncrementalHoareTripleChecker+Valid, 2118 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-11-17 04:53:21,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5687 Valid, 4300 Invalid, 5659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3539 Valid, 2118 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2021-11-17 04:53:21,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21908 states. [2021-11-17 04:53:22,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21908 to 18452. [2021-11-17 04:53:22,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18452 states, 13072 states have (on average 1.3710985312117503) internal successors, (17923), 13582 states have internal predecessors, (17923), 4076 states have call successors, (4076), 1262 states have call predecessors, (4076), 1303 states have return successors, (4796), 3839 states have call predecessors, (4796), 4075 states have call successors, (4796) [2021-11-17 04:53:22,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18452 states to 18452 states and 26795 transitions. [2021-11-17 04:53:22,475 INFO L78 Accepts]: Start accepts. Automaton has 18452 states and 26795 transitions. Word has length 211 [2021-11-17 04:53:22,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:53:22,476 INFO L470 AbstractCegarLoop]: Abstraction has 18452 states and 26795 transitions. [2021-11-17 04:53:22,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 5 states have internal predecessors, (78), 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) [2021-11-17 04:53:22,476 INFO L276 IsEmpty]: Start isEmpty. Operand 18452 states and 26795 transitions. [2021-11-17 04:53:22,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-17 04:53:22,480 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:53:22,480 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, 1] [2021-11-17 04:53:22,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 04:53:22,481 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:53:22,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:53:22,481 INFO L85 PathProgramCache]: Analyzing trace with hash -841270557, now seen corresponding path program 1 times [2021-11-17 04:53:22,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:53:22,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212260012] [2021-11-17 04:53:22,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:53:22,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:53:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:53:22,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:53:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:53:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:53:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:53:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:53:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:53:22,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:53:22,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:53:22,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:22,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:53:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 04:53:22,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 04:53:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 04:53:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 04:53:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:22,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 04:53:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 04:53:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-17 04:53:22,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:22,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:53:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:53:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 04:53:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 04:53:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-17 04:53:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:22,860 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2021-11-17 04:53:22,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:53:22,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212260012] [2021-11-17 04:53:22,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212260012] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:53:22,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:53:22,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-17 04:53:22,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851086514] [2021-11-17 04:53:22,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:53:22,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-17 04:53:22,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:53:22,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-17 04:53:22,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-11-17 04:53:22,863 INFO L87 Difference]: Start difference. First operand 18452 states and 26795 transitions. Second operand has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 5 states have internal predecessors, (81), 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) [2021-11-17 04:53:24,905 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:53:26,208 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:53:34,758 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:53:36,017 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:53:36,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:53:36,991 INFO L93 Difference]: Finished difference Result 39485 states and 57852 transitions. [2021-11-17 04:53:36,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-17 04:53:36,992 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 5 states have internal predecessors, (81), 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 214 [2021-11-17 04:53:36,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:53:37,060 INFO L225 Difference]: With dead ends: 39485 [2021-11-17 04:53:37,060 INFO L226 Difference]: Without dead ends: 21084 [2021-11-17 04:53:37,105 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 [2021-11-17 04:53:37,106 INFO L933 BasicCegarLoop]: 1868 mSDtfsCounter, 4087 mSDsluCounter, 3791 mSDsCounter, 0 mSdLazyCounter, 3333 mSolverCounterSat, 2929 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4298 SdHoareTripleChecker+Valid, 5659 SdHoareTripleChecker+Invalid, 6262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2929 IncrementalHoareTripleChecker+Valid, 3333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2021-11-17 04:53:37,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4298 Valid, 5659 Invalid, 6262 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2929 Valid, 3333 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2021-11-17 04:53:37,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21084 states. [2021-11-17 04:53:37,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21084 to 17772. [2021-11-17 04:53:37,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17772 states, 12646 states have (on average 1.3709473351257315) internal successors, (17337), 13102 states have internal predecessors, (17337), 3852 states have call successors, (3852), 1230 states have call predecessors, (3852), 1273 states have return successors, (4500), 3639 states have call predecessors, (4500), 3851 states have call successors, (4500) [2021-11-17 04:53:37,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17772 states to 17772 states and 25689 transitions. [2021-11-17 04:53:37,837 INFO L78 Accepts]: Start accepts. Automaton has 17772 states and 25689 transitions. Word has length 214 [2021-11-17 04:53:37,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:53:37,838 INFO L470 AbstractCegarLoop]: Abstraction has 17772 states and 25689 transitions. [2021-11-17 04:53:37,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 5 states have internal predecessors, (81), 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) [2021-11-17 04:53:37,838 INFO L276 IsEmpty]: Start isEmpty. Operand 17772 states and 25689 transitions. [2021-11-17 04:53:37,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-17 04:53:37,841 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:53:37,841 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] [2021-11-17 04:53:37,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 04:53:37,841 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:53:37,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:53:37,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1016672158, now seen corresponding path program 1 times [2021-11-17 04:53:37,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:53:37,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996819035] [2021-11-17 04:53:37,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:53:37,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:53:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:53:38,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:53:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:53:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:38,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:53:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:53:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:53:38,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:53:38,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:38,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:53:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:53:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:38,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:53:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 04:53:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 04:53:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 04:53:38,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 04:53:38,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:38,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 04:53:38,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:38,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-17 04:53:38,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:38,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:53:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 04:53:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 04:53:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 04:53:38,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 04:53:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 04:53:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:38,211 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2021-11-17 04:53:38,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:53:38,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996819035] [2021-11-17 04:53:38,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996819035] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:53:38,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:53:38,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-17 04:53:38,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598877845] [2021-11-17 04:53:38,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:53:38,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 04:53:38,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:53:38,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 04:53:38,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-17 04:53:38,213 INFO L87 Difference]: Start difference. First operand 17772 states and 25689 transitions. Second operand has 10 states, 10 states have (on average 7.4) internal successors, (74), 5 states have internal predecessors, (74), 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) [2021-11-17 04:53:40,279 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:53:42,341 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:53:59,749 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:54:02,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:54:02,388 INFO L93 Difference]: Finished difference Result 95406 states and 143426 transitions. [2021-11-17 04:54:02,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-17 04:54:02,389 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 5 states have internal predecessors, (74), 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) Word has length 209 [2021-11-17 04:54:02,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:54:02,703 INFO L225 Difference]: With dead ends: 95406 [2021-11-17 04:54:02,703 INFO L226 Difference]: Without dead ends: 77685 [2021-11-17 04:54:02,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=209, Invalid=493, Unknown=0, NotChecked=0, Total=702 [2021-11-17 04:54:02,781 INFO L933 BasicCegarLoop]: 2638 mSDtfsCounter, 10261 mSDsluCounter, 7907 mSDsCounter, 0 mSdLazyCounter, 11193 mSolverCounterSat, 6701 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10927 SdHoareTripleChecker+Valid, 10545 SdHoareTripleChecker+Invalid, 17896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6701 IncrementalHoareTripleChecker+Valid, 11193 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.3s IncrementalHoareTripleChecker+Time [2021-11-17 04:54:02,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10927 Valid, 10545 Invalid, 17896 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6701 Valid, 11193 Invalid, 2 Unknown, 0 Unchecked, 21.3s Time] [2021-11-17 04:54:02,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77685 states. [2021-11-17 04:54:05,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77685 to 70744. [2021-11-17 04:54:05,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70744 states, 50356 states have (on average 1.3672054968623402) internal successors, (68847), 52106 states have internal predecessors, (68847), 15320 states have call successors, (15320), 4870 states have call predecessors, (15320), 5067 states have return successors, (20083), 14487 states have call predecessors, (20083), 15319 states have call successors, (20083) [2021-11-17 04:54:05,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70744 states to 70744 states and 104250 transitions. [2021-11-17 04:54:05,880 INFO L78 Accepts]: Start accepts. Automaton has 70744 states and 104250 transitions. Word has length 209 [2021-11-17 04:54:05,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:54:05,880 INFO L470 AbstractCegarLoop]: Abstraction has 70744 states and 104250 transitions. [2021-11-17 04:54:05,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 5 states have internal predecessors, (74), 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) [2021-11-17 04:54:05,881 INFO L276 IsEmpty]: Start isEmpty. Operand 70744 states and 104250 transitions. [2021-11-17 04:54:05,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-11-17 04:54:05,883 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:54:05,883 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, 1] [2021-11-17 04:54:05,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 04:54:05,884 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:54:05,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:54:05,884 INFO L85 PathProgramCache]: Analyzing trace with hash 56235343, now seen corresponding path program 1 times [2021-11-17 04:54:05,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:54:05,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775131478] [2021-11-17 04:54:05,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:54:05,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:54:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:54:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:54:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:54:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:54:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:54:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:54:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:54:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:54:06,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:54:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:06,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:54:06,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 04:54:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 04:54:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 04:54:06,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:06,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 04:54:06,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 04:54:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:06,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 04:54:06,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:06,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:54:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 04:54:06,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 04:54:06,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 04:54:06,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 04:54:06,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 04:54:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:06,293 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2021-11-17 04:54:06,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:54:06,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775131478] [2021-11-17 04:54:06,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775131478] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:54:06,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:54:06,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-17 04:54:06,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959360871] [2021-11-17 04:54:06,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:54:06,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 04:54:06,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:54:06,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 04:54:06,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-17 04:54:06,297 INFO L87 Difference]: Start difference. First operand 70744 states and 104250 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 5 states have internal predecessors, (77), 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) [2021-11-17 04:54:08,362 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:54:10,424 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:54:12,483 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:54:36,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:54:36,926 INFO L93 Difference]: Finished difference Result 380490 states and 579499 transitions. [2021-11-17 04:54:36,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-17 04:54:36,927 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 5 states have internal predecessors, (77), 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) Word has length 212 [2021-11-17 04:54:36,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:54:38,887 INFO L225 Difference]: With dead ends: 380490 [2021-11-17 04:54:38,887 INFO L226 Difference]: Without dead ends: 309797 [2021-11-17 04:54:39,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=209, Invalid=493, Unknown=0, NotChecked=0, Total=702 [2021-11-17 04:54:39,306 INFO L933 BasicCegarLoop]: 2637 mSDtfsCounter, 11213 mSDsluCounter, 7387 mSDsCounter, 0 mSdLazyCounter, 8999 mSolverCounterSat, 7361 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11874 SdHoareTripleChecker+Valid, 10024 SdHoareTripleChecker+Invalid, 16363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7361 IncrementalHoareTripleChecker+Valid, 8999 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2021-11-17 04:54:39,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11874 Valid, 10024 Invalid, 16363 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7361 Valid, 8999 Invalid, 3 Unknown, 0 Unchecked, 19.8s Time] [2021-11-17 04:54:39,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309797 states. [2021-11-17 04:54:50,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309797 to 283272. [2021-11-17 04:54:50,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283272 states, 201704 states have (on average 1.3647275215166779) internal successors, (275271), 208634 states have internal predecessors, (275271), 61172 states have call successors, (61172), 19462 states have call predecessors, (61172), 20395 states have return successors, (90399), 58039 states have call predecessors, (90399), 61171 states have call successors, (90399) [2021-11-17 04:54:52,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283272 states to 283272 states and 426842 transitions. [2021-11-17 04:54:52,976 INFO L78 Accepts]: Start accepts. Automaton has 283272 states and 426842 transitions. Word has length 212 [2021-11-17 04:54:52,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:54:52,977 INFO L470 AbstractCegarLoop]: Abstraction has 283272 states and 426842 transitions. [2021-11-17 04:54:52,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 5 states have internal predecessors, (77), 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) [2021-11-17 04:54:52,977 INFO L276 IsEmpty]: Start isEmpty. Operand 283272 states and 426842 transitions. [2021-11-17 04:54:52,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-17 04:54:52,980 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:54:52,980 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] [2021-11-17 04:54:52,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 04:54:52,980 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:54:52,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:54:52,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1215061415, now seen corresponding path program 1 times [2021-11-17 04:54:52,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:54:52,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423411900] [2021-11-17 04:54:52,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:54:52,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:54:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:54:53,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:53,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:54:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:54:53,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:54:53,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:54:53,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:54:53,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:54:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:53,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:54:53,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:54:53,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:53,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:54:53,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 04:54:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 04:54:53,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:53,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 04:54:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:53,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 04:54:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:53,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 04:54:53,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:53,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-17 04:54:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:53,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:54:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-11-17 04:54:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-17 04:54:53,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 04:54:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-17 04:54:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 04:54:53,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:53,698 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2021-11-17 04:54:53,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:54:53,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423411900] [2021-11-17 04:54:53,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423411900] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:54:53,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:54:53,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-17 04:54:53,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077644549] [2021-11-17 04:54:53,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:54:53,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 04:54:53,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:54:53,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 04:54:53,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-17 04:54:53,700 INFO L87 Difference]: Start difference. First operand 283272 states and 426842 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 5 states have internal predecessors, (75), 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) [2021-11-17 04:54:55,806 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []