./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--vmw_pvscsi.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--vmw_pvscsi.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 a6081edb60f9c6ed50ae2f2edfb068029f65a703b32e64840408c28b9c1fef5b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 04:03:27,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:03:27,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:03:27,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:03:27,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:03:27,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:03:27,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:03:27,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:03:27,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:03:27,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:03:27,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:03:27,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:03:27,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:03:27,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:03:27,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:03:27,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:03:27,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:03:27,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:03:27,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:03:27,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:03:27,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:03:27,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:03:27,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:03:27,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:03:27,598 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:03:27,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:03:27,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:03:27,601 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:03:27,601 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:03:27,602 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:03:27,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:03:27,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:03:27,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:03:27,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:03:27,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:03:27,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:03:27,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:03:27,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:03:27,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:03:27,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:03:27,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:03:27,616 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:03:27,643 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:03:27,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:03:27,644 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:03:27,644 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:03:27,645 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:03:27,645 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:03:27,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:03:27,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:03:27,646 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:03:27,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:03:27,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:03:27,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:03:27,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:03:27,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:03:27,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:03:27,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:03:27,648 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:03:27,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:03:27,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:03:27,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:03:27,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:03:27,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:03:27,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:03:27,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:03:27,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:03:27,649 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:03:27,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:03:27,650 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:03:27,650 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:03:27,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:03:27,650 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6081edb60f9c6ed50ae2f2edfb068029f65a703b32e64840408c28b9c1fef5b [2021-12-28 04:03:27,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:03:27,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:03:27,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:03:27,923 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:03:27,923 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:03:27,924 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--vmw_pvscsi.ko-entry_point.cil.out.i [2021-12-28 04:03:27,970 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/729bfd2a2/a110c184fc3047ff89e4c78e19c04168/FLAGa3fa99f5c [2021-12-28 04:03:28,631 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:03:28,631 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--vmw_pvscsi.ko-entry_point.cil.out.i [2021-12-28 04:03:28,655 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/729bfd2a2/a110c184fc3047ff89e4c78e19c04168/FLAGa3fa99f5c [2021-12-28 04:03:28,771 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/729bfd2a2/a110c184fc3047ff89e4c78e19c04168 [2021-12-28 04:03:28,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:03:28,774 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:03:28,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:03:28,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:03:28,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:03:28,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:03:28" (1/1) ... [2021-12-28 04:03:28,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13c2557a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:28, skipping insertion in model container [2021-12-28 04:03:28,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:03:28" (1/1) ... [2021-12-28 04:03:28,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:03:28,842 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:03:29,237 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4406] [2021-12-28 04:03:29,237 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4407-4408] [2021-12-28 04:03:29,398 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--vmw_pvscsi.ko-entry_point.cil.out.i[136345,136358] [2021-12-28 04:03:29,958 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:03:29,979 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:03:30,060 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4406] [2021-12-28 04:03:30,061 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4407-4408] [2021-12-28 04:03:30,066 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--vmw_pvscsi.ko-entry_point.cil.out.i[136345,136358] [2021-12-28 04:03:30,213 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:03:30,265 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:03:30,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:30 WrapperNode [2021-12-28 04:03:30,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:03:30,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:03:30,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:03:30,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:03:30,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:30" (1/1) ... [2021-12-28 04:03:30,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:30" (1/1) ... [2021-12-28 04:03:30,479 INFO L137 Inliner]: procedures = 238, calls = 1473, calls flagged for inlining = 139, calls inlined = 137, statements flattened = 3986 [2021-12-28 04:03:30,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:03:30,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:03:30,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:03:30,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:03:30,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:30" (1/1) ... [2021-12-28 04:03:30,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:30" (1/1) ... [2021-12-28 04:03:30,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:30" (1/1) ... [2021-12-28 04:03:30,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:30" (1/1) ... [2021-12-28 04:03:30,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:30" (1/1) ... [2021-12-28 04:03:30,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:30" (1/1) ... [2021-12-28 04:03:30,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:30" (1/1) ... [2021-12-28 04:03:30,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:03:30,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:03:30,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:03:30,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:03:30,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:30" (1/1) ... [2021-12-28 04:03:30,655 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:03:30,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:03:30,673 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 04:03:30,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 04:03:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_dev [2021-12-28 04:03:30,716 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_dev [2021-12-28 04:03:30,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 04:03:30,716 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_complete_request [2021-12-28 04:03:30,716 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_complete_request [2021-12-28 04:03:30,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 04:03:30,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:03:30,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:03:30,717 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_process_request_ring [2021-12-28 04:03:30,717 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_process_request_ring [2021-12-28 04:03:30,717 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_process_completion_ring [2021-12-28 04:03:30,717 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_process_completion_ring [2021-12-28 04:03:30,717 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_unmap_buffers [2021-12-28 04:03:30,718 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_unmap_buffers [2021-12-28 04:03:30,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-28 04:03:30,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-28 04:03:30,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:03:30,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:03:30,718 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-28 04:03:30,718 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2021-12-28 04:03:30,718 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2021-12-28 04:03:30,719 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_reg_write [2021-12-28 04:03:30,719 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_reg_write [2021-12-28 04:03:30,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 04:03:30,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 04:03:30,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_3 [2021-12-28 04:03:30,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_3 [2021-12-28 04:03:30,719 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-28 04:03:30,719 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-28 04:03:30,720 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_remove [2021-12-28 04:03:30,720 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_remove [2021-12-28 04:03:30,720 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_put [2021-12-28 04:03:30,720 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_put [2021-12-28 04:03:30,720 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-28 04:03:30,721 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-28 04:03:30,721 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_release_resources [2021-12-28 04:03:30,721 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_release_resources [2021-12-28 04:03:30,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 04:03:30,721 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 04:03:30,721 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 04:03:30,722 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 04:03:30,722 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-28 04:03:30,722 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-28 04:03:30,722 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_release_context [2021-12-28 04:03:30,722 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_release_context [2021-12-28 04:03:30,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:03:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-28 04:03:30,723 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-28 04:03:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:03:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-28 04:03:30,723 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-28 04:03:30,724 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 04:03:30,724 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 04:03:30,724 INFO L130 BoogieDeclarations]: Found specification of procedure __pvscsi_shutdown [2021-12-28 04:03:30,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __pvscsi_shutdown [2021-12-28 04:03:30,725 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_write_cmd_desc [2021-12-28 04:03:30,725 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_write_cmd_desc [2021-12-28 04:03:30,725 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-28 04:03:30,726 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-28 04:03:30,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:03:30,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:03:30,726 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_reg_read [2021-12-28 04:03:30,726 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_reg_read [2021-12-28 04:03:30,726 INFO L130 BoogieDeclarations]: Found specification of procedure ll_adapter_reset [2021-12-28 04:03:30,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_adapter_reset [2021-12-28 04:03:30,726 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_shutdown_intr [2021-12-28 04:03:30,727 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_shutdown_intr [2021-12-28 04:03:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-12-28 04:03:30,727 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-12-28 04:03:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-12-28 04:03:30,727 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-12-28 04:03:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-12-28 04:03:30,728 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-12-28 04:03:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 04:03:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-28 04:03:30,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-28 04:03:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-28 04:03:30,728 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-28 04:03:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 04:03:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:03:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-28 04:03:30,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-28 04:03:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-28 04:03:30,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-28 04:03:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-12-28 04:03:30,729 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-12-28 04:03:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-28 04:03:30,730 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-28 04:03:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:03:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-28 04:03:30,730 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-28 04:03:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_get [2021-12-28 04:03:30,731 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_get [2021-12-28 04:03:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_msg_pending [2021-12-28 04:03:30,731 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_msg_pending [2021-12-28 04:03:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:03:30,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:03:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:03:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_shutdown [2021-12-28 04:03:30,732 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_shutdown [2021-12-28 04:03:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sg_count [2021-12-28 04:03:30,732 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sg_count [2021-12-28 04:03:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:03:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:03:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_unmask_intr [2021-12-28 04:03:30,733 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_unmask_intr [2021-12-28 04:03:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_map_context [2021-12-28 04:03:30,733 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_map_context [2021-12-28 04:03:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 04:03:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-28 04:03:30,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-28 04:03:30,734 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:03:30,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:03:30,734 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2021-12-28 04:03:30,734 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2021-12-28 04:03:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_lookup [2021-12-28 04:03:30,736 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_lookup [2021-12-28 04:03:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-28 04:03:30,737 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-28 04:03:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_setup_all_rings [2021-12-28 04:03:30,738 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_setup_all_rings [2021-12-28 04:03:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure shost_priv [2021-12-28 04:03:30,739 INFO L138 BoogieDeclarations]: Found implementation of procedure shost_priv [2021-12-28 04:03:30,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:03:30,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:03:30,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:03:31,319 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:03:31,321 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:03:31,657 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:03:41,612 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:03:41,631 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:03:41,631 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 04:03:41,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:03:41 BoogieIcfgContainer [2021-12-28 04:03:41,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:03:41,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:03:41,637 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:03:41,639 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:03:41,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:03:28" (1/3) ... [2021-12-28 04:03:41,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@385b5f43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:03:41, skipping insertion in model container [2021-12-28 04:03:41,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:30" (2/3) ... [2021-12-28 04:03:41,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@385b5f43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:03:41, skipping insertion in model container [2021-12-28 04:03:41,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:03:41" (3/3) ... [2021-12-28 04:03:41,645 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--vmw_pvscsi.ko-entry_point.cil.out.i [2021-12-28 04:03:41,649 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:03:41,649 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 04:03:41,689 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:03:41,694 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 04:03:41,694 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 04:03:41,721 INFO L276 IsEmpty]: Start isEmpty. Operand has 1058 states, 798 states have (on average 1.3596491228070176) internal successors, (1085), 822 states have internal predecessors, (1085), 205 states have call successors, (205), 54 states have call predecessors, (205), 53 states have return successors, (199), 196 states have call predecessors, (199), 199 states have call successors, (199) [2021-12-28 04:03:41,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-28 04:03:41,757 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:03:41,758 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:03:41,760 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:03:41,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:03:41,764 INFO L85 PathProgramCache]: Analyzing trace with hash -197612283, now seen corresponding path program 1 times [2021-12-28 04:03:41,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:03:41,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832197000] [2021-12-28 04:03:41,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:03:41,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:03:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:03:42,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 04:03:42,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:03:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 04:03:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-28 04:03:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 04:03:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 04:03:42,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:03:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:03:42,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:03:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-28 04:03:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-28 04:03:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-28 04:03:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:03:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:03:42,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-28 04:03:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:03:42,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-28 04:03:42,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:03:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:03:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-28 04:03:42,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 04:03:42,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 04:03:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-28 04:03:42,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-28 04:03:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:03:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:42,863 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-12-28 04:03:42,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:03:42,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832197000] [2021-12-28 04:03:42,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832197000] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:03:42,864 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:03:42,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 04:03:42,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632660302] [2021-12-28 04:03:42,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:03:42,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 04:03:42,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:03:42,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 04:03:42,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:03:42,888 INFO L87 Difference]: Start difference. First operand has 1058 states, 798 states have (on average 1.3596491228070176) internal successors, (1085), 822 states have internal predecessors, (1085), 205 states have call successors, (205), 54 states have call predecessors, (205), 53 states have return successors, (199), 196 states have call predecessors, (199), 199 states have call successors, (199) Second operand has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-28 04:03:45,156 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:03:47,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:03:55,889 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:03:58,712 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:04:00,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:04:00,427 INFO L93 Difference]: Finished difference Result 3241 states and 4734 transitions. [2021-12-28 04:04:00,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 04:04:00,429 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 227 [2021-12-28 04:04:00,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:04:00,459 INFO L225 Difference]: With dead ends: 3241 [2021-12-28 04:04:00,459 INFO L226 Difference]: Without dead ends: 2145 [2021-12-28 04:04:00,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-28 04:04:00,477 INFO L933 BasicCegarLoop]: 1720 mSDtfsCounter, 1611 mSDsluCounter, 3020 mSDsCounter, 0 mSdLazyCounter, 2837 mSolverCounterSat, 664 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1775 SdHoareTripleChecker+Valid, 4740 SdHoareTripleChecker+Invalid, 3504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 2837 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2021-12-28 04:04:00,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1775 Valid, 4740 Invalid, 3504 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [664 Valid, 2837 Invalid, 3 Unknown, 0 Unchecked, 17.1s Time] [2021-12-28 04:04:00,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2145 states. [2021-12-28 04:04:00,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2145 to 1748. [2021-12-28 04:04:00,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1748 states, 1315 states have (on average 1.3422053231939164) internal successors, (1765), 1341 states have internal predecessors, (1765), 335 states have call successors, (335), 98 states have call predecessors, (335), 97 states have return successors, (334), 329 states have call predecessors, (334), 334 states have call successors, (334) [2021-12-28 04:04:00,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1748 states to 1748 states and 2434 transitions. [2021-12-28 04:04:00,651 INFO L78 Accepts]: Start accepts. Automaton has 1748 states and 2434 transitions. Word has length 227 [2021-12-28 04:04:00,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:04:00,652 INFO L470 AbstractCegarLoop]: Abstraction has 1748 states and 2434 transitions. [2021-12-28 04:04:00,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-28 04:04:00,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1748 states and 2434 transitions. [2021-12-28 04:04:00,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-12-28 04:04:00,671 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:04:00,671 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:04:00,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:04:00,673 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:04:00,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:04:00,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1180595489, now seen corresponding path program 1 times [2021-12-28 04:04:00,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:04:00,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864508748] [2021-12-28 04:04:00,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:04:00,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:04:00,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:00,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:04:00,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:00,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 04:04:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:04:01,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-28 04:04:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:04:01,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-28 04:04:01,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 04:04:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-28 04:04:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 04:04:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:04:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:04:01,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-28 04:04:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:04:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-28 04:04:01,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-28 04:04:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:04:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-28 04:04:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:04:01,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-28 04:04:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:04:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:04:01,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-28 04:04:01,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 04:04:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 04:04:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-28 04:04:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-28 04:04:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:04:01,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:01,552 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-28 04:04:01,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:04:01,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864508748] [2021-12-28 04:04:01,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864508748] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:04:01,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:04:01,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-28 04:04:01,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394328759] [2021-12-28 04:04:01,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:04:01,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-28 04:04:01,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:04:01,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-28 04:04:01,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-12-28 04:04:01,559 INFO L87 Difference]: Start difference. First operand 1748 states and 2434 transitions. Second operand has 10 states, 10 states have (on average 13.8) internal successors, (138), 5 states have internal predecessors, (138), 2 states have call successors, (26), 6 states have call predecessors, (26), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-28 04:04:03,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:04:10,522 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:04:16,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:04:18,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:04:18,918 INFO L93 Difference]: Finished difference Result 4669 states and 6777 transitions. [2021-12-28 04:04:18,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 04:04:18,919 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.8) internal successors, (138), 5 states have internal predecessors, (138), 2 states have call successors, (26), 6 states have call predecessors, (26), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 245 [2021-12-28 04:04:18,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:04:18,933 INFO L225 Difference]: With dead ends: 4669 [2021-12-28 04:04:18,934 INFO L226 Difference]: Without dead ends: 2935 [2021-12-28 04:04:18,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-12-28 04:04:18,941 INFO L933 BasicCegarLoop]: 2166 mSDtfsCounter, 1322 mSDsluCounter, 8342 mSDsCounter, 0 mSdLazyCounter, 4097 mSolverCounterSat, 546 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 10508 SdHoareTripleChecker+Invalid, 4646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 546 IncrementalHoareTripleChecker+Valid, 4097 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2021-12-28 04:04:18,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1525 Valid, 10508 Invalid, 4646 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [546 Valid, 4097 Invalid, 3 Unknown, 0 Unchecked, 17.0s Time] [2021-12-28 04:04:18,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2935 states. [2021-12-28 04:04:19,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2935 to 1753. [2021-12-28 04:04:19,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1753 states, 1319 states have (on average 1.3411675511751326) internal successors, (1769), 1345 states have internal predecessors, (1769), 335 states have call successors, (335), 98 states have call predecessors, (335), 98 states have return successors, (336), 330 states have call predecessors, (336), 334 states have call successors, (336) [2021-12-28 04:04:19,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1753 states to 1753 states and 2440 transitions. [2021-12-28 04:04:19,011 INFO L78 Accepts]: Start accepts. Automaton has 1753 states and 2440 transitions. Word has length 245 [2021-12-28 04:04:19,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:04:19,012 INFO L470 AbstractCegarLoop]: Abstraction has 1753 states and 2440 transitions. [2021-12-28 04:04:19,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.8) internal successors, (138), 5 states have internal predecessors, (138), 2 states have call successors, (26), 6 states have call predecessors, (26), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-28 04:04:19,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1753 states and 2440 transitions. [2021-12-28 04:04:19,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-12-28 04:04:19,019 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:04:19,019 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:04:19,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 04:04:19,020 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:04:19,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:04:19,021 INFO L85 PathProgramCache]: Analyzing trace with hash -693521763, now seen corresponding path program 1 times [2021-12-28 04:04:19,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:04:19,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353098588] [2021-12-28 04:04:19,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:04:19,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:04:19,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:04:19,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 04:04:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:04:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-28 04:04:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:04:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-28 04:04:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 04:04:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-28 04:04:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 04:04:19,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:04:19,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:04:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-28 04:04:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:04:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-28 04:04:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-28 04:04:19,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:04:19,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-28 04:04:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:04:19,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-28 04:04:19,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:04:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:04:19,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-28 04:04:19,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 04:04:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 04:04:19,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-28 04:04:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-28 04:04:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:04:19,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:19,758 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-28 04:04:19,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:04:19,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353098588] [2021-12-28 04:04:19,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353098588] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:04:19,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:04:19,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 04:04:19,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821645449] [2021-12-28 04:04:19,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:04:19,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 04:04:19,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:04:19,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 04:04:19,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:04:19,762 INFO L87 Difference]: Start difference. First operand 1753 states and 2440 transitions. Second operand has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 3 states have internal predecessors, (138), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-28 04:04:21,956 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:04:25,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:04:28,340 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:04:34,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:04:35,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:04:35,507 INFO L93 Difference]: Finished difference Result 5814 states and 8273 transitions. [2021-12-28 04:04:35,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 04:04:35,508 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 3 states have internal predecessors, (138), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 245 [2021-12-28 04:04:35,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:04:35,527 INFO L225 Difference]: With dead ends: 5814 [2021-12-28 04:04:35,527 INFO L226 Difference]: Without dead ends: 4075 [2021-12-28 04:04:35,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-28 04:04:35,536 INFO L933 BasicCegarLoop]: 1557 mSDtfsCounter, 2445 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 2077 mSolverCounterSat, 1207 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2618 SdHoareTripleChecker+Valid, 3897 SdHoareTripleChecker+Invalid, 3287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1207 IncrementalHoareTripleChecker+Valid, 2077 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2021-12-28 04:04:35,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2618 Valid, 3897 Invalid, 3287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1207 Valid, 2077 Invalid, 3 Unknown, 0 Unchecked, 15.4s Time] [2021-12-28 04:04:35,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4075 states. [2021-12-28 04:04:35,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4075 to 3295. [2021-12-28 04:04:35,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3295 states, 2478 states have (on average 1.3430185633575464) internal successors, (3328), 2525 states have internal predecessors, (3328), 625 states have call successors, (625), 190 states have call predecessors, (625), 191 states have return successors, (628), 617 states have call predecessors, (628), 624 states have call successors, (628) [2021-12-28 04:04:35,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3295 states to 3295 states and 4581 transitions. [2021-12-28 04:04:35,644 INFO L78 Accepts]: Start accepts. Automaton has 3295 states and 4581 transitions. Word has length 245 [2021-12-28 04:04:35,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:04:35,645 INFO L470 AbstractCegarLoop]: Abstraction has 3295 states and 4581 transitions. [2021-12-28 04:04:35,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 3 states have internal predecessors, (138), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-28 04:04:35,645 INFO L276 IsEmpty]: Start isEmpty. Operand 3295 states and 4581 transitions. [2021-12-28 04:04:35,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-12-28 04:04:35,653 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:04:35,653 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:04:35,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 04:04:35,654 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:04:35,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:04:35,654 INFO L85 PathProgramCache]: Analyzing trace with hash -2015975870, now seen corresponding path program 1 times [2021-12-28 04:04:35,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:04:35,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71761949] [2021-12-28 04:04:35,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:04:35,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:04:35,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:04:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 04:04:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:04:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-28 04:04:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:04:36,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-28 04:04:36,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 04:04:36,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-28 04:04:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 04:04:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:04:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:04:36,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-28 04:04:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-28 04:04:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-28 04:04:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-28 04:04:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:04:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-28 04:04:36,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:04:36,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-28 04:04:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:04:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:04:36,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-28 04:04:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 04:04:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 04:04:36,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-28 04:04:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-28 04:04:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:04:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:36,439 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-28 04:04:36,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:04:36,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71761949] [2021-12-28 04:04:36,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71761949] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:04:36,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:04:36,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 04:04:36,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141690978] [2021-12-28 04:04:36,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:04:36,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 04:04:36,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:04:36,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 04:04:36,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:04:36,441 INFO L87 Difference]: Start difference. First operand 3295 states and 4581 transitions. Second operand has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24)