./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 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4b829e0b1083ca135908ac8582697cf0831b43587b46e1b9cc42429c7a2c7866 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 12:39:10,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 12:39:10,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 12:39:10,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 12:39:10,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 12:39:10,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 12:39:10,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 12:39:10,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 12:39:10,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 12:39:10,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 12:39:10,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 12:39:10,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 12:39:10,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 12:39:10,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 12:39:10,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 12:39:10,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 12:39:10,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 12:39:10,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 12:39:10,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 12:39:10,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 12:39:10,626 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 12:39:10,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 12:39:10,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 12:39:10,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 12:39:10,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 12:39:10,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 12:39:10,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 12:39:10,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 12:39:10,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 12:39:10,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 12:39:10,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 12:39:10,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 12:39:10,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 12:39:10,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 12:39:10,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 12:39:10,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 12:39:10,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 12:39:10,642 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 12:39:10,642 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 12:39:10,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 12:39:10,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 12:39:10,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 12:39:10,648 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 12:39:10,679 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 12:39:10,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 12:39:10,681 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 12:39:10,681 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 12:39:10,681 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 12:39:10,681 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 12:39:10,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 12:39:10,682 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 12:39:10,682 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 12:39:10,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 12:39:10,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 12:39:10,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 12:39:10,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 12:39:10,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 12:39:10,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 12:39:10,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 12:39:10,684 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 12:39:10,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 12:39:10,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 12:39:10,684 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 12:39:10,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 12:39:10,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:39:10,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 12:39:10,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 12:39:10,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 12:39:10,685 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 12:39:10,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 12:39:10,686 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 12:39:10,686 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 12:39:10,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 12:39:10,686 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b829e0b1083ca135908ac8582697cf0831b43587b46e1b9cc42429c7a2c7866 [2022-07-21 12:39:10,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 12:39:10,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 12:39:10,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 12:39:10,965 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 12:39:10,966 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 12:39:10,967 INFO L432 ainManager$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 [2022-07-21 12:39:11,013 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78a9f8acd/ee9d6bfefab14abc8527a66bfb69109d/FLAGe02bca78e [2022-07-21 12:39:11,694 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 12:39:11,695 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 [2022-07-21 12:39:11,727 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78a9f8acd/ee9d6bfefab14abc8527a66bfb69109d/FLAGe02bca78e [2022-07-21 12:39:12,036 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78a9f8acd/ee9d6bfefab14abc8527a66bfb69109d [2022-07-21 12:39:12,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 12:39:12,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 12:39:12,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 12:39:12,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 12:39:12,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 12:39:12,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:39:12" (1/1) ... [2022-07-21 12:39:12,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c48f11e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:39:12, skipping insertion in model container [2022-07-21 12:39:12,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:39:12" (1/1) ... [2022-07-21 12:39:12,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 12:39:12,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 12:39:13,781 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] [2022-07-21 12:39:13,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:39:13,952 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 12:39:14,356 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] [2022-07-21 12:39:14,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:39:14,481 INFO L208 MainTranslator]: Completed translation [2022-07-21 12:39:14,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:39:14 WrapperNode [2022-07-21 12:39:14,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 12:39:14,484 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 12:39:14,484 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 12:39:14,484 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 12:39:14,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:39:14" (1/1) ... [2022-07-21 12:39:14,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:39:14" (1/1) ... [2022-07-21 12:39:14,758 INFO L137 Inliner]: procedures = 341, calls = 3940, calls flagged for inlining = 136, calls inlined = 92, statements flattened = 5421 [2022-07-21 12:39:14,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 12:39:14,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 12:39:14,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 12:39:14,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 12:39:14,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:39:14" (1/1) ... [2022-07-21 12:39:14,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:39:14" (1/1) ... [2022-07-21 12:39:14,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:39:14" (1/1) ... [2022-07-21 12:39:14,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:39:14" (1/1) ... [2022-07-21 12:39:14,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:39:14" (1/1) ... [2022-07-21 12:39:14,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:39:14" (1/1) ... [2022-07-21 12:39:14,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:39:14" (1/1) ... [2022-07-21 12:39:14,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 12:39:14,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 12:39:14,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 12:39:14,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 12:39:14,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:39:14" (1/1) ... [2022-07-21 12:39:14,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:39:14,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 12:39:15,000 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 12:39:15,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 12:39:15,036 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2022-07-21 12:39:15,036 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2022-07-21 12:39:15,036 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2022-07-21 12:39:15,036 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2022-07-21 12:39:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-21 12:39:15,037 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-21 12:39:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2022-07-21 12:39:15,037 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2022-07-21 12:39:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-07-21 12:39:15,037 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-07-21 12:39:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2022-07-21 12:39:15,038 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2022-07-21 12:39:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 12:39:15,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 12:39:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 12:39:15,040 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 12:39:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-07-21 12:39:15,041 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-07-21 12:39:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2022-07-21 12:39:15,041 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2022-07-21 12:39:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2022-07-21 12:39:15,041 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2022-07-21 12:39:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2022-07-21 12:39:15,041 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2022-07-21 12:39:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-21 12:39:15,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-21 12:39:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 12:39:15,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 12:39:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2022-07-21 12:39:15,042 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2022-07-21 12:39:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2022-07-21 12:39:15,042 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2022-07-21 12:39:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2022-07-21 12:39:15,043 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2022-07-21 12:39:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure freeurbs [2022-07-21 12:39:15,043 INFO L138 BoogieDeclarations]: Found implementation of procedure freeurbs [2022-07-21 12:39:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_down [2022-07-21 12:39:15,043 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_down [2022-07-21 12:39:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-07-21 12:39:15,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-07-21 12:39:15,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 12:39:15,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 12:39:15,044 INFO L130 BoogieDeclarations]: Found specification of procedure start_cbsend [2022-07-21 12:39:15,044 INFO L138 BoogieDeclarations]: Found implementation of procedure start_cbsend [2022-07-21 12:39:15,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 12:39:15,044 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 12:39:15,044 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2022-07-21 12:39:15,044 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2022-07-21 12:39:15,045 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 12:39:15,045 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 12:39:15,045 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-07-21 12:39:15,045 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-07-21 12:39:15,045 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2022-07-21 12:39:15,045 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2022-07-21 12:39:15,091 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-07-21 12:39:15,092 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-07-21 12:39:15,092 INFO L130 BoogieDeclarations]: Found specification of procedure usb_queue_reset_device [2022-07-21 12:39:15,092 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_queue_reset_device [2022-07-21 12:39:15,092 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 12:39:15,092 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 12:39:15,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2022-07-21 12:39:15,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2022-07-21 12:39:15,092 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2022-07-21 12:39:15,092 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2022-07-21 12:39:15,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2022-07-21 12:39:15,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2022-07-21 12:39:15,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2022-07-21 12:39:15,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2022-07-21 12:39:15,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 12:39:15,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_5 [2022-07-21 12:39:15,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_5 [2022-07-21 12:39:15,092 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 12:39:15,093 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 12:39:15,093 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-07-21 12:39:15,093 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-07-21 12:39:15,093 INFO L130 BoogieDeclarations]: Found specification of procedure check_pending [2022-07-21 12:39:15,093 INFO L138 BoogieDeclarations]: Found implementation of procedure check_pending [2022-07-21 12:39:15,093 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-21 12:39:15,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 12:39:15,093 INFO L130 BoogieDeclarations]: Found specification of procedure error_hangup [2022-07-21 12:39:15,093 INFO L138 BoogieDeclarations]: Found implementation of procedure error_hangup [2022-07-21 12:39:15,093 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2022-07-21 12:39:15,093 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2022-07-21 12:39:15,093 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_send_skb [2022-07-21 12:39:15,093 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_send_skb [2022-07-21 12:39:15,093 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2022-07-21 12:39:15,093 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2022-07-21 12:39:15,093 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 12:39:15,093 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 12:39:15,093 INFO L130 BoogieDeclarations]: Found specification of procedure req_submit [2022-07-21 12:39:15,093 INFO L138 BoogieDeclarations]: Found implementation of procedure req_submit [2022-07-21 12:39:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 12:39:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2022-07-21 12:39:15,094 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2022-07-21 12:39:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 12:39:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-07-21 12:39:15,094 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-07-21 12:39:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-07-21 12:39:15,094 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-07-21 12:39:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-21 12:39:15,094 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-21 12:39:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure complete_cb [2022-07-21 12:39:15,094 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_cb [2022-07-21 12:39:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-07-21 12:39:15,094 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-07-21 12:39:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure stopurbs [2022-07-21 12:39:15,094 INFO L138 BoogieDeclarations]: Found implementation of procedure stopurbs [2022-07-21 12:39:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2022-07-21 12:39:15,094 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2022-07-21 12:39:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-21 12:39:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-21 12:39:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2022-07-21 12:39:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2022-07-21 12:39:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure int_in_work [2022-07-21 12:39:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure int_in_work [2022-07-21 12:39:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 12:39:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure dump_urb [2022-07-21 12:39:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_urb [2022-07-21 12:39:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-21 12:39:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-21 12:39:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-21 12:39:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-21 12:39:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure atwrite_submit [2022-07-21 12:39:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure atwrite_submit [2022-07-21 12:39:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_3 [2022-07-21 12:39:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_3 [2022-07-21 12:39:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-21 12:39:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-21 12:39:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-21 12:39:15,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-21 12:39:15,096 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-07-21 12:39:15,096 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-07-21 12:39:15,096 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2022-07-21 12:39:15,096 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2022-07-21 12:39:15,096 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 12:39:15,096 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 12:39:15,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 12:39:15,096 INFO L130 BoogieDeclarations]: Found specification of procedure get_usb_rcmsg [2022-07-21 12:39:15,096 INFO L138 BoogieDeclarations]: Found implementation of procedure get_usb_rcmsg [2022-07-21 12:39:15,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 12:39:15,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 12:39:15,096 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2022-07-21 12:39:15,096 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2022-07-21 12:39:15,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-21 12:39:15,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-21 12:39:15,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 12:39:15,097 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-21 12:39:15,097 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-21 12:39:15,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-21 12:39:15,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-21 12:39:15,098 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2022-07-21 12:39:15,098 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2022-07-21 12:39:15,098 INFO L130 BoogieDeclarations]: Found specification of procedure error_reset [2022-07-21 12:39:15,098 INFO L138 BoogieDeclarations]: Found implementation of procedure error_reset [2022-07-21 12:39:15,098 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_input [2022-07-21 12:39:15,098 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_input [2022-07-21 12:39:15,098 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2022-07-21 12:39:15,098 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2022-07-21 12:39:15,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 12:39:15,098 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2022-07-21 12:39:15,098 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2022-07-21 12:39:15,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 12:39:15,098 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2022-07-21 12:39:15,098 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2022-07-21 12:39:15,098 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-07-21 12:39:15,098 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-07-21 12:39:15,098 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-07-21 12:39:15,098 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-07-21 12:39:15,098 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-21 12:39:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-21 12:39:15,099 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2022-07-21 12:39:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2022-07-21 12:39:15,099 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-21 12:39:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-21 12:39:15,099 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-07-21 12:39:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-07-21 12:39:15,099 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-07-21 12:39:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-07-21 12:39:15,099 INFO L130 BoogieDeclarations]: Found specification of procedure update_basstate [2022-07-21 12:39:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure update_basstate [2022-07-21 12:39:15,099 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-07-21 12:39:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-07-21 12:39:15,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 12:39:15,099 INFO L130 BoogieDeclarations]: Found specification of procedure atread_submit [2022-07-21 12:39:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure atread_submit [2022-07-21 12:39:15,099 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2022-07-21 12:39:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2022-07-21 12:39:15,099 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-21 12:39:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-21 12:39:15,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 12:39:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 12:39:15,630 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 12:39:15,632 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 12:39:15,834 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 12:39:19,274 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 12:39:19,292 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 12:39:19,293 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 12:39:19,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:39:19 BoogieIcfgContainer [2022-07-21 12:39:19,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 12:39:19,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 12:39:19,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 12:39:19,300 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 12:39:19,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:39:12" (1/3) ... [2022-07-21 12:39:19,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@604a6e8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:39:19, skipping insertion in model container [2022-07-21 12:39:19,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:39:14" (2/3) ... [2022-07-21 12:39:19,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@604a6e8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:39:19, skipping insertion in model container [2022-07-21 12:39:19,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:39:19" (3/3) ... [2022-07-21 12:39:19,302 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2022-07-21 12:39:19,312 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 12:39:19,313 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 12:39:19,370 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 12:39:19,375 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@c7eca2a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2cae247c [2022-07-21 12:39:19,375 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 12:39:19,381 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) [2022-07-21 12:39:19,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-21 12:39:19,397 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:39:19,397 INFO L195 NwaCegarLoop]: 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] [2022-07-21 12:39:19,398 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:39:19,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:39:19,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1429373024, now seen corresponding path program 1 times [2022-07-21 12:39:19,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:39:19,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217023698] [2022-07-21 12:39:19,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:39:19,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:39:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:39:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:39:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:39:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:20,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:39:20,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:20,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:39:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:20,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 12:39:20,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 12:39:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 12:39:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:20,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 12:39:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:39:20,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:20,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:20,434 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-07-21 12:39:20,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:39:20,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217023698] [2022-07-21 12:39:20,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217023698] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:39:20,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:39:20,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 12:39:20,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702629951] [2022-07-21 12:39:20,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:39:20,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 12:39:20,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:39:20,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 12:39:20,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 12:39:20,475 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) [2022-07-21 12:39:24,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:39:24,269 INFO L93 Difference]: Finished difference Result 3312 states and 4895 transitions. [2022-07-21 12:39:24,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 12:39:24,282 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 [2022-07-21 12:39:24,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:39:24,303 INFO L225 Difference]: With dead ends: 3312 [2022-07-21 12:39:24,303 INFO L226 Difference]: Without dead ends: 1671 [2022-07-21 12:39:24,313 INFO L412 NwaCegarLoop]: 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 [2022-07-21 12:39:24,316 INFO L413 NwaCegarLoop]: 2109 mSDtfsCounter, 1011 mSDsluCounter, 1950 mSDsCounter, 0 mSdLazyCounter, 1234 mSolverCounterSat, 1019 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 4059 SdHoareTripleChecker+Invalid, 2253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1019 IncrementalHoareTripleChecker+Valid, 1234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-21 12:39:24,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1019 Valid, 4059 Invalid, 2253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1019 Valid, 1234 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-21 12:39:24,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2022-07-21 12:39:24,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1522. [2022-07-21 12:39:24,482 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) [2022-07-21 12:39:24,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1522 states to 1522 states and 2185 transitions. [2022-07-21 12:39:24,494 INFO L78 Accepts]: Start accepts. Automaton has 1522 states and 2185 transitions. Word has length 163 [2022-07-21 12:39:24,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:39:24,494 INFO L495 AbstractCegarLoop]: Abstraction has 1522 states and 2185 transitions. [2022-07-21 12:39:24,495 INFO L496 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) [2022-07-21 12:39:24,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1522 states and 2185 transitions. [2022-07-21 12:39:24,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-21 12:39:24,502 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:39:24,503 INFO L195 NwaCegarLoop]: 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] [2022-07-21 12:39:24,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 12:39:24,503 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:39:24,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:39:24,504 INFO L85 PathProgramCache]: Analyzing trace with hash 184814678, now seen corresponding path program 1 times [2022-07-21 12:39:24,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:39:24,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374362900] [2022-07-21 12:39:24,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:39:24,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:39:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:24,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:39:24,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:24,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:24,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:24,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:39:24,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:24,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:24,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:24,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:24,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:39:24,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:24,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:24,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:24,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:24,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:24,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:39:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:24,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:24,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:24,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:24,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:24,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:39:24,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:25,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:25,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:25,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:25,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 12:39:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:25,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:25,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 12:39:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:25,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:25,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 12:39:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:25,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:25,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 12:39:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:25,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:25,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:39:25,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:25,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:25,099 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-07-21 12:39:25,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:39:25,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374362900] [2022-07-21 12:39:25,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374362900] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:39:25,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:39:25,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:39:25,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250361961] [2022-07-21 12:39:25,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:39:25,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:39:25,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:39:25,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:39:25,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:39:25,102 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) [2022-07-21 12:39:30,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:39:30,003 INFO L93 Difference]: Finished difference Result 4193 states and 6061 transitions. [2022-07-21 12:39:30,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:39:30,004 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 [2022-07-21 12:39:30,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:39:30,015 INFO L225 Difference]: With dead ends: 4193 [2022-07-21 12:39:30,015 INFO L226 Difference]: Without dead ends: 2704 [2022-07-21 12:39:30,020 INFO L412 NwaCegarLoop]: 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 [2022-07-21 12:39:30,021 INFO L413 NwaCegarLoop]: 2219 mSDtfsCounter, 2714 mSDsluCounter, 3319 mSDsCounter, 0 mSdLazyCounter, 2409 mSolverCounterSat, 1678 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2865 SdHoareTripleChecker+Valid, 5538 SdHoareTripleChecker+Invalid, 4087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1678 IncrementalHoareTripleChecker+Valid, 2409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-07-21 12:39:30,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2865 Valid, 5538 Invalid, 4087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1678 Valid, 2409 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-07-21 12:39:30,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2704 states. [2022-07-21 12:39:30,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2704 to 2463. [2022-07-21 12:39:30,080 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) [2022-07-21 12:39:30,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2463 states to 2463 states and 3529 transitions. [2022-07-21 12:39:30,092 INFO L78 Accepts]: Start accepts. Automaton has 2463 states and 3529 transitions. Word has length 163 [2022-07-21 12:39:30,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:39:30,094 INFO L495 AbstractCegarLoop]: Abstraction has 2463 states and 3529 transitions. [2022-07-21 12:39:30,094 INFO L496 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) [2022-07-21 12:39:30,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2463 states and 3529 transitions. [2022-07-21 12:39:30,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-21 12:39:30,097 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:39:30,097 INFO L195 NwaCegarLoop]: 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] [2022-07-21 12:39:30,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 12:39:30,097 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:39:30,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:39:30,098 INFO L85 PathProgramCache]: Analyzing trace with hash 971820423, now seen corresponding path program 1 times [2022-07-21 12:39:30,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:39:30,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769879869] [2022-07-21 12:39:30,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:39:30,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:39:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:39:30,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:39:30,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:39:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:39:30,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:39:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 12:39:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 12:39:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 12:39:30,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 12:39:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:30,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:39:30,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:30,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-21 12:39:30,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:30,553 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-07-21 12:39:30,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:39:30,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769879869] [2022-07-21 12:39:30,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769879869] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:39:30,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:39:30,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:39:30,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176311772] [2022-07-21 12:39:30,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:39:30,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:39:30,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:39:30,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:39:30,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:39:30,556 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) [2022-07-21 12:39:35,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:39:35,716 INFO L93 Difference]: Finished difference Result 7010 states and 10136 transitions. [2022-07-21 12:39:35,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:39:35,717 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 [2022-07-21 12:39:35,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:39:35,737 INFO L225 Difference]: With dead ends: 7010 [2022-07-21 12:39:35,737 INFO L226 Difference]: Without dead ends: 4584 [2022-07-21 12:39:35,745 INFO L412 NwaCegarLoop]: 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 [2022-07-21 12:39:35,746 INFO L413 NwaCegarLoop]: 2365 mSDtfsCounter, 3215 mSDsluCounter, 3421 mSDsCounter, 0 mSdLazyCounter, 2517 mSolverCounterSat, 1879 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3379 SdHoareTripleChecker+Valid, 5786 SdHoareTripleChecker+Invalid, 4396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1879 IncrementalHoareTripleChecker+Valid, 2517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-07-21 12:39:35,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3379 Valid, 5786 Invalid, 4396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1879 Valid, 2517 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-07-21 12:39:35,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4584 states. [2022-07-21 12:39:35,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4584 to 4154. [2022-07-21 12:39:35,840 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) [2022-07-21 12:39:35,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4154 states to 4154 states and 5973 transitions. [2022-07-21 12:39:35,854 INFO L78 Accepts]: Start accepts. Automaton has 4154 states and 5973 transitions. Word has length 167 [2022-07-21 12:39:35,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:39:35,855 INFO L495 AbstractCegarLoop]: Abstraction has 4154 states and 5973 transitions. [2022-07-21 12:39:35,855 INFO L496 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) [2022-07-21 12:39:35,855 INFO L276 IsEmpty]: Start isEmpty. Operand 4154 states and 5973 transitions. [2022-07-21 12:39:35,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-21 12:39:35,857 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:39:35,857 INFO L195 NwaCegarLoop]: 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] [2022-07-21 12:39:35,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 12:39:35,857 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:39:35,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:39:35,858 INFO L85 PathProgramCache]: Analyzing trace with hash -999731685, now seen corresponding path program 1 times [2022-07-21 12:39:35,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:39:35,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323558177] [2022-07-21 12:39:35,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:39:35,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:39:35,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:39:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:36,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:36,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:39:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:39:36,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:36,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:39:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:39:36,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:36,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 12:39:36,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 12:39:36,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 12:39:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 12:39:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:39:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 12:39:36,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:36,305 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-07-21 12:39:36,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:39:36,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323558177] [2022-07-21 12:39:36,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323558177] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:39:36,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:39:36,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:39:36,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409312963] [2022-07-21 12:39:36,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:39:36,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:39:36,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:39:36,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:39:36,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:39:36,309 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) [2022-07-21 12:39:39,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:39:39,270 INFO L93 Difference]: Finished difference Result 5086 states and 7324 transitions. [2022-07-21 12:39:39,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:39:39,270 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 [2022-07-21 12:39:39,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:39:39,290 INFO L225 Difference]: With dead ends: 5086 [2022-07-21 12:39:39,290 INFO L226 Difference]: Without dead ends: 5083 [2022-07-21 12:39:39,292 INFO L412 NwaCegarLoop]: 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 [2022-07-21 12:39:39,293 INFO L413 NwaCegarLoop]: 2125 mSDtfsCounter, 3218 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 1739 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3390 SdHoareTripleChecker+Valid, 3372 SdHoareTripleChecker+Invalid, 2804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1739 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-21 12:39:39,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3390 Valid, 3372 Invalid, 2804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1739 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-21 12:39:39,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5083 states. [2022-07-21 12:39:39,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5083 to 4610. [2022-07-21 12:39:39,402 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) [2022-07-21 12:39:39,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4610 states to 4610 states and 6579 transitions. [2022-07-21 12:39:39,415 INFO L78 Accepts]: Start accepts. Automaton has 4610 states and 6579 transitions. Word has length 167 [2022-07-21 12:39:39,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:39:39,416 INFO L495 AbstractCegarLoop]: Abstraction has 4610 states and 6579 transitions. [2022-07-21 12:39:39,416 INFO L496 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) [2022-07-21 12:39:39,416 INFO L276 IsEmpty]: Start isEmpty. Operand 4610 states and 6579 transitions. [2022-07-21 12:39:39,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-07-21 12:39:39,419 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:39:39,419 INFO L195 NwaCegarLoop]: 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] [2022-07-21 12:39:39,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 12:39:39,419 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:39:39,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:39:39,420 INFO L85 PathProgramCache]: Analyzing trace with hash 524624507, now seen corresponding path program 1 times [2022-07-21 12:39:39,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:39:39,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102256621] [2022-07-21 12:39:39,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:39:39,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:39:39,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:39:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:39:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:39,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:39:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:39:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:39:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 12:39:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 12:39:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 12:39:39,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:39,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 12:39:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:39:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-21 12:39:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-21 12:39:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:39,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-21 12:39:39,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-21 12:39:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 12:39:39,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-21 12:39:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:39,990 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-07-21 12:39:39,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:39:39,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102256621] [2022-07-21 12:39:39,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102256621] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:39:39,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:39:39,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 12:39:39,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049304110] [2022-07-21 12:39:39,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:39:39,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 12:39:39,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:39:39,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 12:39:39,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-21 12:39:39,993 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) [2022-07-21 12:39:44,624 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:39:46,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:39:46,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:39:46,645 INFO L93 Difference]: Finished difference Result 10110 states and 14595 transitions. [2022-07-21 12:39:46,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 12:39:46,646 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 [2022-07-21 12:39:46,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:39:46,670 INFO L225 Difference]: With dead ends: 10110 [2022-07-21 12:39:46,671 INFO L226 Difference]: Without dead ends: 5547 [2022-07-21 12:39:46,684 INFO L412 NwaCegarLoop]: 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 [2022-07-21 12:39:46,686 INFO L413 NwaCegarLoop]: 1893 mSDtfsCounter, 4322 mSDsluCounter, 2320 mSDsCounter, 0 mSdLazyCounter, 2105 mSolverCounterSat, 3045 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4543 SdHoareTripleChecker+Valid, 4213 SdHoareTripleChecker+Invalid, 5150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3045 IncrementalHoareTripleChecker+Valid, 2105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-07-21 12:39:46,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4543 Valid, 4213 Invalid, 5150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3045 Valid, 2105 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-07-21 12:39:46,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5547 states. [2022-07-21 12:39:46,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5547 to 4614. [2022-07-21 12:39:46,851 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) [2022-07-21 12:39:46,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4614 states to 4614 states and 6570 transitions. [2022-07-21 12:39:46,864 INFO L78 Accepts]: Start accepts. Automaton has 4614 states and 6570 transitions. Word has length 213 [2022-07-21 12:39:46,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:39:46,865 INFO L495 AbstractCegarLoop]: Abstraction has 4614 states and 6570 transitions. [2022-07-21 12:39:46,866 INFO L496 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) [2022-07-21 12:39:46,866 INFO L276 IsEmpty]: Start isEmpty. Operand 4614 states and 6570 transitions. [2022-07-21 12:39:46,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-07-21 12:39:46,868 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:39:46,869 INFO L195 NwaCegarLoop]: 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] [2022-07-21 12:39:46,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 12:39:46,870 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:39:46,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:39:46,871 INFO L85 PathProgramCache]: Analyzing trace with hash 673112347, now seen corresponding path program 1 times [2022-07-21 12:39:46,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:39:46,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196163120] [2022-07-21 12:39:46,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:39:46,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:39:47,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:39:47,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:47,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:47,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:39:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:47,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:39:47,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:47,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:39:47,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:39:47,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:47,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 12:39:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 12:39:47,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:47,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 12:39:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 12:39:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:47,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:39:47,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:47,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 12:39:47,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-21 12:39:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:47,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-21 12:39:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-21 12:39:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-21 12:39:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-21 12:39:47,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:47,350 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-07-21 12:39:47,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:39:47,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196163120] [2022-07-21 12:39:47,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196163120] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:39:47,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:39:47,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 12:39:47,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272382697] [2022-07-21 12:39:47,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:39:47,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 12:39:47,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:39:47,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 12:39:47,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-21 12:39:47,352 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) [2022-07-21 12:39:55,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:39:56,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:39:56,510 INFO L93 Difference]: Finished difference Result 10106 states and 14559 transitions. [2022-07-21 12:39:56,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 12:39:56,510 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 [2022-07-21 12:39:56,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:39:56,535 INFO L225 Difference]: With dead ends: 10106 [2022-07-21 12:39:56,535 INFO L226 Difference]: Without dead ends: 5543 [2022-07-21 12:39:56,549 INFO L412 NwaCegarLoop]: 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 [2022-07-21 12:39:56,550 INFO L413 NwaCegarLoop]: 1894 mSDtfsCounter, 4204 mSDsluCounter, 3232 mSDsCounter, 0 mSdLazyCounter, 3218 mSolverCounterSat, 2989 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4421 SdHoareTripleChecker+Valid, 5126 SdHoareTripleChecker+Invalid, 6208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2989 IncrementalHoareTripleChecker+Valid, 3218 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-07-21 12:39:56,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4421 Valid, 5126 Invalid, 6208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2989 Valid, 3218 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2022-07-21 12:39:56,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5543 states. [2022-07-21 12:39:56,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5543 to 4610. [2022-07-21 12:39:56,692 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) [2022-07-21 12:39:56,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4610 states to 4610 states and 6558 transitions. [2022-07-21 12:39:56,705 INFO L78 Accepts]: Start accepts. Automaton has 4610 states and 6558 transitions. Word has length 212 [2022-07-21 12:39:56,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:39:56,706 INFO L495 AbstractCegarLoop]: Abstraction has 4610 states and 6558 transitions. [2022-07-21 12:39:56,706 INFO L496 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) [2022-07-21 12:39:56,706 INFO L276 IsEmpty]: Start isEmpty. Operand 4610 states and 6558 transitions. [2022-07-21 12:39:56,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-07-21 12:39:56,709 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:39:56,709 INFO L195 NwaCegarLoop]: 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] [2022-07-21 12:39:56,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 12:39:56,709 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:39:56,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:39:56,710 INFO L85 PathProgramCache]: Analyzing trace with hash 194956422, now seen corresponding path program 1 times [2022-07-21 12:39:56,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:39:56,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837116668] [2022-07-21 12:39:56,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:39:56,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:39:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:56,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:39:56,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:56,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:56,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:56,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:56,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:56,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:39:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:57,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:57,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:39:57,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:57,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:39:57,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:57,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:57,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:39:57,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:57,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:57,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 12:39:57,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:57,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 12:39:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:57,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 12:39:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:57,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 12:39:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:39:57,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:57,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-21 12:39:57,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:39:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:39:57,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-21 12:39:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-21 12:39:57,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-21 12:39:57,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-21 12:39:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-21 12:39:57,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:39:57,276 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2022-07-21 12:39:57,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:39:57,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837116668] [2022-07-21 12:39:57,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837116668] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:39:57,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:39:57,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 12:39:57,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956823621] [2022-07-21 12:39:57,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:39:57,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 12:39:57,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:39:57,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 12:39:57,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-07-21 12:39:57,278 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) [2022-07-21 12:40:12,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:40:12,505 INFO L93 Difference]: Finished difference Result 24796 states and 36515 transitions. [2022-07-21 12:40:12,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-21 12:40:12,506 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 [2022-07-21 12:40:12,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:40:12,580 INFO L225 Difference]: With dead ends: 24796 [2022-07-21 12:40:12,580 INFO L226 Difference]: Without dead ends: 20237 [2022-07-21 12:40:12,601 INFO L412 NwaCegarLoop]: 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 [2022-07-21 12:40:12,602 INFO L413 NwaCegarLoop]: 2692 mSDtfsCounter, 9279 mSDsluCounter, 7486 mSDsCounter, 0 mSdLazyCounter, 12124 mSolverCounterSat, 5048 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9944 SdHoareTripleChecker+Valid, 10178 SdHoareTripleChecker+Invalid, 17172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5048 IncrementalHoareTripleChecker+Valid, 12124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-07-21 12:40:12,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9944 Valid, 10178 Invalid, 17172 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5048 Valid, 12124 Invalid, 0 Unknown, 0 Unchecked, 14.2s Time] [2022-07-21 12:40:12,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20237 states. [2022-07-21 12:40:13,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20237 to 18360. [2022-07-21 12:40:13,220 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) [2022-07-21 12:40:13,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18360 states to 18360 states and 26648 transitions. [2022-07-21 12:40:13,279 INFO L78 Accepts]: Start accepts. Automaton has 18360 states and 26648 transitions. Word has length 211 [2022-07-21 12:40:13,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:40:13,282 INFO L495 AbstractCegarLoop]: Abstraction has 18360 states and 26648 transitions. [2022-07-21 12:40:13,282 INFO L496 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) [2022-07-21 12:40:13,282 INFO L276 IsEmpty]: Start isEmpty. Operand 18360 states and 26648 transitions. [2022-07-21 12:40:13,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-07-21 12:40:13,285 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:40:13,285 INFO L195 NwaCegarLoop]: 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] [2022-07-21 12:40:13,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 12:40:13,285 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:40:13,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:40:13,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1613612979, now seen corresponding path program 1 times [2022-07-21 12:40:13,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:40:13,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426575234] [2022-07-21 12:40:13,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:40:13,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:40:13,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:40:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:13,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:40:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:40:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:40:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:40:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:40:13,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:40:13,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:40:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:40:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:13,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:40:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 12:40:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:13,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 12:40:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 12:40:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:13,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 12:40:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:40:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:13,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-21 12:40:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 12:40:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:13,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:40:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-21 12:40:13,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-21 12:40:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-21 12:40:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-21 12:40:13,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:13,817 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-07-21 12:40:13,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:40:13,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426575234] [2022-07-21 12:40:13,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426575234] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:40:13,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:40:13,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 12:40:13,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257051537] [2022-07-21 12:40:13,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:40:13,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 12:40:13,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:40:13,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 12:40:13,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-21 12:40:13,819 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) [2022-07-21 12:40:18,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:40:18,270 INFO L93 Difference]: Finished difference Result 40217 states and 59035 transitions. [2022-07-21 12:40:18,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 12:40:18,271 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 [2022-07-21 12:40:18,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:40:18,343 INFO L225 Difference]: With dead ends: 40217 [2022-07-21 12:40:18,344 INFO L226 Difference]: Without dead ends: 21908 [2022-07-21 12:40:18,385 INFO L412 NwaCegarLoop]: 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 [2022-07-21 12:40:18,386 INFO L413 NwaCegarLoop]: 1894 mSDtfsCounter, 5473 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 2205 mSolverCounterSat, 3542 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5689 SdHoareTripleChecker+Valid, 4203 SdHoareTripleChecker+Invalid, 5747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3542 IncrementalHoareTripleChecker+Valid, 2205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-21 12:40:18,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5689 Valid, 4203 Invalid, 5747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3542 Valid, 2205 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-21 12:40:18,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21908 states. [2022-07-21 12:40:18,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21908 to 18452. [2022-07-21 12:40:19,002 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) [2022-07-21 12:40:19,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18452 states to 18452 states and 26795 transitions. [2022-07-21 12:40:19,072 INFO L78 Accepts]: Start accepts. Automaton has 18452 states and 26795 transitions. Word has length 211 [2022-07-21 12:40:19,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:40:19,072 INFO L495 AbstractCegarLoop]: Abstraction has 18452 states and 26795 transitions. [2022-07-21 12:40:19,072 INFO L496 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) [2022-07-21 12:40:19,073 INFO L276 IsEmpty]: Start isEmpty. Operand 18452 states and 26795 transitions. [2022-07-21 12:40:19,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-07-21 12:40:19,076 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:40:19,076 INFO L195 NwaCegarLoop]: 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] [2022-07-21 12:40:19,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 12:40:19,077 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:40:19,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:40:19,077 INFO L85 PathProgramCache]: Analyzing trace with hash -841270557, now seen corresponding path program 1 times [2022-07-21 12:40:19,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:40:19,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83606795] [2022-07-21 12:40:19,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:40:19,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:40:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:40:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:19,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:40:19,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:40:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:19,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:40:19,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:40:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:40:19,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:40:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:40:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:40:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:40:19,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 12:40:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 12:40:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 12:40:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 12:40:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:19,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:40:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-21 12:40:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-21 12:40:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:40:19,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-07-21 12:40:19,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 12:40:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-21 12:40:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-21 12:40:19,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:19,634 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-07-21 12:40:19,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:40:19,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83606795] [2022-07-21 12:40:19,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83606795] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:40:19,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:40:19,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 12:40:19,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431513564] [2022-07-21 12:40:19,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:40:19,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 12:40:19,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:40:19,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 12:40:19,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-21 12:40:19,637 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) [2022-07-21 12:40:26,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:40:26,609 INFO L93 Difference]: Finished difference Result 39485 states and 57852 transitions. [2022-07-21 12:40:26,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 12:40:26,610 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 [2022-07-21 12:40:26,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:40:26,682 INFO L225 Difference]: With dead ends: 39485 [2022-07-21 12:40:26,682 INFO L226 Difference]: Without dead ends: 21084 [2022-07-21 12:40:26,726 INFO L412 NwaCegarLoop]: 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 [2022-07-21 12:40:26,727 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 4085 mSDsluCounter, 3646 mSDsCounter, 0 mSdLazyCounter, 3513 mSolverCounterSat, 2926 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4294 SdHoareTripleChecker+Valid, 5517 SdHoareTripleChecker+Invalid, 6439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2926 IncrementalHoareTripleChecker+Valid, 3513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-07-21 12:40:26,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4294 Valid, 5517 Invalid, 6439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2926 Valid, 3513 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-07-21 12:40:26,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21084 states. [2022-07-21 12:40:27,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21084 to 17772. [2022-07-21 12:40:27,311 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) [2022-07-21 12:40:27,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17772 states to 17772 states and 25689 transitions. [2022-07-21 12:40:27,376 INFO L78 Accepts]: Start accepts. Automaton has 17772 states and 25689 transitions. Word has length 214 [2022-07-21 12:40:27,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:40:27,376 INFO L495 AbstractCegarLoop]: Abstraction has 17772 states and 25689 transitions. [2022-07-21 12:40:27,377 INFO L496 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) [2022-07-21 12:40:27,378 INFO L276 IsEmpty]: Start isEmpty. Operand 17772 states and 25689 transitions. [2022-07-21 12:40:27,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-07-21 12:40:27,380 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:40:27,381 INFO L195 NwaCegarLoop]: 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] [2022-07-21 12:40:27,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 12:40:27,381 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:40:27,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:40:27,381 INFO L85 PathProgramCache]: Analyzing trace with hash 56235343, now seen corresponding path program 1 times [2022-07-21 12:40:27,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:40:27,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625889775] [2022-07-21 12:40:27,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:40:27,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:40:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:40:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:40:27,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:40:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:40:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:40:27,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:27,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:40:27,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:40:27,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:27,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:40:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:40:27,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:27,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:40:27,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 12:40:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 12:40:27,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 12:40:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:27,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 12:40:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:40:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:27,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-21 12:40:27,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:27,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:40:27,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 12:40:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-21 12:40:27,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-21 12:40:27,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-21 12:40:27,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-21 12:40:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:27,924 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2022-07-21 12:40:27,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:40:27,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625889775] [2022-07-21 12:40:27,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625889775] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:40:27,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:40:27,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 12:40:27,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54540222] [2022-07-21 12:40:27,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:40:27,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 12:40:27,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:40:27,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 12:40:27,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-07-21 12:40:27,927 INFO L87 Difference]: Start difference. First operand 17772 states and 25689 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) [2022-07-21 12:40:45,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:40:45,331 INFO L93 Difference]: Finished difference Result 95726 states and 142766 transitions. [2022-07-21 12:40:45,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-21 12:40:45,331 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 [2022-07-21 12:40:45,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:40:45,753 INFO L225 Difference]: With dead ends: 95726 [2022-07-21 12:40:45,753 INFO L226 Difference]: Without dead ends: 78005 [2022-07-21 12:40:45,821 INFO L412 NwaCegarLoop]: 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 [2022-07-21 12:40:45,821 INFO L413 NwaCegarLoop]: 2630 mSDtfsCounter, 10041 mSDsluCounter, 6988 mSDsCounter, 0 mSdLazyCounter, 12216 mSolverCounterSat, 6508 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10703 SdHoareTripleChecker+Valid, 9618 SdHoareTripleChecker+Invalid, 18724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6508 IncrementalHoareTripleChecker+Valid, 12216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-07-21 12:40:45,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10703 Valid, 9618 Invalid, 18724 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6508 Valid, 12216 Invalid, 0 Unknown, 0 Unchecked, 14.7s Time] [2022-07-21 12:40:45,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78005 states. [2022-07-21 12:40:48,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78005 to 71104. [2022-07-21 12:40:48,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71104 states, 50612 states have (on average 1.3685094444005375) internal successors, (69263), 52434 states have internal predecessors, (69263), 15360 states have call successors, (15360), 4902 states have call predecessors, (15360), 5131 states have return successors, (20203), 14567 states have call predecessors, (20203), 15359 states have call successors, (20203) [2022-07-21 12:40:49,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71104 states to 71104 states and 104826 transitions. [2022-07-21 12:40:49,106 INFO L78 Accepts]: Start accepts. Automaton has 71104 states and 104826 transitions. Word has length 212 [2022-07-21 12:40:49,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:40:49,107 INFO L495 AbstractCegarLoop]: Abstraction has 71104 states and 104826 transitions. [2022-07-21 12:40:49,107 INFO L496 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) [2022-07-21 12:40:49,107 INFO L276 IsEmpty]: Start isEmpty. Operand 71104 states and 104826 transitions. [2022-07-21 12:40:49,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-07-21 12:40:49,110 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:40:49,110 INFO L195 NwaCegarLoop]: 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] [2022-07-21 12:40:49,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 12:40:49,110 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:40:49,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:40:49,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1016672158, now seen corresponding path program 1 times [2022-07-21 12:40:49,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:40:49,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418169054] [2022-07-21 12:40:49,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:40:49,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:40:49,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:40:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:49,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:40:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:40:49,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:40:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:40:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:40:49,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:40:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:40:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:40:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:40:49,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 12:40:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 12:40:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 12:40:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 12:40:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:40:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:49,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-21 12:40:49,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:40:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:40:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-21 12:40:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 12:40:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 12:40:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 12:40:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-21 12:40:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:40:49,602 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2022-07-21 12:40:49,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:40:49,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418169054] [2022-07-21 12:40:49,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418169054] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:40:49,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:40:49,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 12:40:49,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908899856] [2022-07-21 12:40:49,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:40:49,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 12:40:49,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:40:49,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 12:40:49,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-07-21 12:40:49,605 INFO L87 Difference]: Start difference. First operand 71104 states and 104826 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) [2022-07-21 12:41:13,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:41:13,555 INFO L93 Difference]: Finished difference Result 381234 states and 588251 transitions. [2022-07-21 12:41:13,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-21 12:41:13,555 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 [2022-07-21 12:41:13,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:41:15,387 INFO L225 Difference]: With dead ends: 381234 [2022-07-21 12:41:15,387 INFO L226 Difference]: Without dead ends: 310181 [2022-07-21 12:41:15,919 INFO L412 NwaCegarLoop]: 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 [2022-07-21 12:41:15,920 INFO L413 NwaCegarLoop]: 2646 mSDtfsCounter, 9302 mSDsluCounter, 7224 mSDsCounter, 0 mSdLazyCounter, 11768 mSolverCounterSat, 5062 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9967 SdHoareTripleChecker+Valid, 9870 SdHoareTripleChecker+Invalid, 16830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5062 IncrementalHoareTripleChecker+Valid, 11768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-07-21 12:41:15,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9967 Valid, 9870 Invalid, 16830 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5062 Valid, 11768 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2022-07-21 12:41:16,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310181 states. [2022-07-21 12:41:27,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310181 to 283272. [2022-07-21 12:41:27,645 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) [2022-07-21 12:41:30,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283272 states to 283272 states and 426842 transitions. [2022-07-21 12:41:30,055 INFO L78 Accepts]: Start accepts. Automaton has 283272 states and 426842 transitions. Word has length 209 [2022-07-21 12:41:30,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:41:30,055 INFO L495 AbstractCegarLoop]: Abstraction has 283272 states and 426842 transitions. [2022-07-21 12:41:30,056 INFO L496 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) [2022-07-21 12:41:30,056 INFO L276 IsEmpty]: Start isEmpty. Operand 283272 states and 426842 transitions. [2022-07-21 12:41:30,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-07-21 12:41:30,059 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:41:30,059 INFO L195 NwaCegarLoop]: 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] [2022-07-21 12:41:30,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 12:41:30,059 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:41:30,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:41:30,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1215061415, now seen corresponding path program 1 times [2022-07-21 12:41:30,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:41:30,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309564852] [2022-07-21 12:41:30,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:41:30,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:41:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:41:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:41:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:41:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:41:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:41:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:41:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:41:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:41:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:41:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:41:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:41:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:41:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:41:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:41:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:41:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 12:41:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:41:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 12:41:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:41:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 12:41:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:41:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 12:41:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:41:30,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:41:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:41:30,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 12:41:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:41:30,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:41:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-21 12:41:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 12:41:30,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-21 12:41:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-21 12:41:30,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-21 12:41:30,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:41:30,593 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2022-07-21 12:41:30,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:41:30,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309564852] [2022-07-21 12:41:30,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309564852] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:41:30,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:41:30,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 12:41:30,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679980053] [2022-07-21 12:41:30,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:41:30,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 12:41:30,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:41:30,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 12:41:30,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-07-21 12:41:30,595 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)