./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 c3fed411 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-tmp.no-commuhash-c3fed41 [2021-12-16 04:05:08,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 04:05:08,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 04:05:08,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 04:05:08,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 04:05:08,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 04:05:08,724 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 04:05:08,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 04:05:08,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 04:05:08,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 04:05:08,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 04:05:08,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 04:05:08,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 04:05:08,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 04:05:08,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 04:05:08,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 04:05:08,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 04:05:08,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 04:05:08,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 04:05:08,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 04:05:08,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 04:05:08,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 04:05:08,742 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 04:05:08,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 04:05:08,746 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 04:05:08,747 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 04:05:08,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 04:05:08,748 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 04:05:08,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 04:05:08,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 04:05:08,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 04:05:08,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 04:05:08,750 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 04:05:08,751 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 04:05:08,751 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 04:05:08,752 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 04:05:08,752 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 04:05:08,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 04:05:08,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 04:05:08,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 04:05:08,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 04:05:08,760 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 04:05:08,791 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 04:05:08,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 04:05:08,792 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 04:05:08,792 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 04:05:08,793 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 04:05:08,793 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 04:05:08,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 04:05:08,794 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 04:05:08,794 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 04:05:08,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 04:05:08,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 04:05:08,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 04:05:08,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 04:05:08,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 04:05:08,796 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 04:05:08,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 04:05:08,796 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 04:05:08,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 04:05:08,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 04:05:08,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 04:05:08,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 04:05:08,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:05:08,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 04:05:08,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 04:05:08,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 04:05:08,798 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 04:05:08,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 04:05:08,800 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 04:05:08,800 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 04:05:08,800 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 04:05:08,800 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 04:05:08,800 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6081edb60f9c6ed50ae2f2edfb068029f65a703b32e64840408c28b9c1fef5b [2021-12-16 04:05:09,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 04:05:09,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 04:05:09,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 04:05:09,048 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 04:05:09,048 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 04:05:09,050 INFO L432 ainManager$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 [2021-12-16 04:05:09,109 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cbfa580a/34d92dc65b4948379f313f3f779d0daf/FLAG2d0350658 [2021-12-16 04:05:09,638 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 04:05:09,638 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 [2021-12-16 04:05:09,674 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cbfa580a/34d92dc65b4948379f313f3f779d0daf/FLAG2d0350658 [2021-12-16 04:05:09,881 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cbfa580a/34d92dc65b4948379f313f3f779d0daf [2021-12-16 04:05:09,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 04:05:09,885 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 04:05:09,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 04:05:09,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 04:05:09,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 04:05:09,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:05:09" (1/1) ... [2021-12-16 04:05:09,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e5e903c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:09, skipping insertion in model container [2021-12-16 04:05:09,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:05:09" (1/1) ... [2021-12-16 04:05:09,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 04:05:09,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 04:05:10,315 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4406] [2021-12-16 04:05:10,319 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] [2021-12-16 04:05:10,499 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] [2021-12-16 04:05:10,990 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:05:11,011 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 04:05:11,145 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4406] [2021-12-16 04:05:11,146 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] [2021-12-16 04:05:11,159 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] [2021-12-16 04:05:11,308 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:05:11,355 INFO L208 MainTranslator]: Completed translation [2021-12-16 04:05:11,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:11 WrapperNode [2021-12-16 04:05:11,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 04:05:11,356 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 04:05:11,356 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 04:05:11,356 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 04:05:11,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:11" (1/1) ... [2021-12-16 04:05:11,426 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:11" (1/1) ... [2021-12-16 04:05:11,558 INFO L137 Inliner]: procedures = 238, calls = 1473, calls flagged for inlining = 139, calls inlined = 137, statements flattened = 3986 [2021-12-16 04:05:11,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 04:05:11,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 04:05:11,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 04:05:11,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 04:05:11,565 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:11" (1/1) ... [2021-12-16 04:05:11,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:11" (1/1) ... [2021-12-16 04:05:11,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:11" (1/1) ... [2021-12-16 04:05:11,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:11" (1/1) ... [2021-12-16 04:05:11,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:11" (1/1) ... [2021-12-16 04:05:11,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:11" (1/1) ... [2021-12-16 04:05:11,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:11" (1/1) ... [2021-12-16 04:05:11,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 04:05:11,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 04:05:11,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 04:05:11,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 04:05:11,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:11" (1/1) ... [2021-12-16 04:05:11,730 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:05:11,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:05:11,746 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) [2021-12-16 04:05:11,767 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 [2021-12-16 04:05:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_dev [2021-12-16 04:05:11,772 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_dev [2021-12-16 04:05:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-16 04:05:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_complete_request [2021-12-16 04:05:11,773 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_complete_request [2021-12-16 04:05:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-16 04:05:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-16 04:05:11,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-16 04:05:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_process_request_ring [2021-12-16 04:05:11,773 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_process_request_ring [2021-12-16 04:05:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_process_completion_ring [2021-12-16 04:05:11,773 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_process_completion_ring [2021-12-16 04:05:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_unmap_buffers [2021-12-16 04:05:11,774 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_unmap_buffers [2021-12-16 04:05:11,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-16 04:05:11,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-16 04:05:11,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 04:05:11,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 04:05:11,774 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-16 04:05:11,775 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2021-12-16 04:05:11,775 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2021-12-16 04:05:11,775 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_reg_write [2021-12-16 04:05:11,775 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_reg_write [2021-12-16 04:05:11,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 04:05:11,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 04:05:11,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_3 [2021-12-16 04:05:11,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_3 [2021-12-16 04:05:11,775 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-16 04:05:11,776 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-16 04:05:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_remove [2021-12-16 04:05:11,776 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_remove [2021-12-16 04:05:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_put [2021-12-16 04:05:11,776 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_put [2021-12-16 04:05:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-16 04:05:11,776 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-16 04:05:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_release_resources [2021-12-16 04:05:11,777 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_release_resources [2021-12-16 04:05:11,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-16 04:05:11,777 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-16 04:05:11,777 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-16 04:05:11,777 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-16 04:05:11,777 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-16 04:05:11,777 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-16 04:05:11,778 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_release_context [2021-12-16 04:05:11,778 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_release_context [2021-12-16 04:05:11,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 04:05:11,778 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-16 04:05:11,778 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-16 04:05:11,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 04:05:11,778 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-16 04:05:11,778 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-16 04:05:11,779 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-16 04:05:11,779 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-16 04:05:11,780 INFO L130 BoogieDeclarations]: Found specification of procedure __pvscsi_shutdown [2021-12-16 04:05:11,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __pvscsi_shutdown [2021-12-16 04:05:11,780 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_write_cmd_desc [2021-12-16 04:05:11,780 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_write_cmd_desc [2021-12-16 04:05:11,780 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-16 04:05:11,781 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-16 04:05:11,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 04:05:11,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 04:05:11,781 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_reg_read [2021-12-16 04:05:11,781 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_reg_read [2021-12-16 04:05:11,781 INFO L130 BoogieDeclarations]: Found specification of procedure ll_adapter_reset [2021-12-16 04:05:11,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_adapter_reset [2021-12-16 04:05:11,781 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_shutdown_intr [2021-12-16 04:05:11,781 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_shutdown_intr [2021-12-16 04:05:11,781 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-12-16 04:05:11,782 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-12-16 04:05:11,782 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-12-16 04:05:11,782 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-12-16 04:05:11,782 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-12-16 04:05:11,782 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-12-16 04:05:11,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-16 04:05:11,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-16 04:05:11,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-16 04:05:11,783 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-16 04:05:11,783 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-16 04:05:11,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-16 04:05:11,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 04:05:11,783 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-16 04:05:11,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-16 04:05:11,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-16 04:05:11,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-16 04:05:11,784 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-12-16 04:05:11,784 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-12-16 04:05:11,784 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-16 04:05:11,784 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-16 04:05:11,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 04:05:11,785 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-16 04:05:11,785 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-16 04:05:11,785 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_get [2021-12-16 04:05:11,785 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_get [2021-12-16 04:05:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_msg_pending [2021-12-16 04:05:11,786 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_msg_pending [2021-12-16 04:05:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 04:05:11,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 04:05:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 04:05:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_shutdown [2021-12-16 04:05:11,787 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_shutdown [2021-12-16 04:05:11,787 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sg_count [2021-12-16 04:05:11,787 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sg_count [2021-12-16 04:05:11,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 04:05:11,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 04:05:11,787 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_unmask_intr [2021-12-16 04:05:11,787 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_unmask_intr [2021-12-16 04:05:11,788 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_map_context [2021-12-16 04:05:11,788 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_map_context [2021-12-16 04:05:11,788 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-16 04:05:11,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-16 04:05:11,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-16 04:05:11,788 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 04:05:11,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 04:05:11,789 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2021-12-16 04:05:11,789 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2021-12-16 04:05:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_lookup [2021-12-16 04:05:11,791 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_lookup [2021-12-16 04:05:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-16 04:05:11,791 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-16 04:05:11,792 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_setup_all_rings [2021-12-16 04:05:11,793 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_setup_all_rings [2021-12-16 04:05:11,793 INFO L130 BoogieDeclarations]: Found specification of procedure shost_priv [2021-12-16 04:05:11,793 INFO L138 BoogieDeclarations]: Found implementation of procedure shost_priv [2021-12-16 04:05:11,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 04:05:11,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 04:05:11,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 04:05:12,337 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 04:05:12,339 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 04:05:12,733 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-16 04:05:22,732 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 04:05:22,747 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 04:05:22,747 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 04:05:22,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:05:22 BoogieIcfgContainer [2021-12-16 04:05:22,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 04:05:22,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 04:05:22,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 04:05:22,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 04:05:22,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:05:09" (1/3) ... [2021-12-16 04:05:22,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d350304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:05:22, skipping insertion in model container [2021-12-16 04:05:22,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:11" (2/3) ... [2021-12-16 04:05:22,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d350304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:05:22, skipping insertion in model container [2021-12-16 04:05:22,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:05:22" (3/3) ... [2021-12-16 04:05:22,759 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 [2021-12-16 04:05:22,764 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 04:05:22,765 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 04:05:22,810 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 04:05:22,823 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 [2021-12-16 04:05:22,824 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 04:05:22,857 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) [2021-12-16 04:05:22,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-16 04:05:22,890 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:05:22,891 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] [2021-12-16 04:05:22,893 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:05:22,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:05:22,896 INFO L85 PathProgramCache]: Analyzing trace with hash -197612283, now seen corresponding path program 1 times [2021-12-16 04:05:22,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:05:22,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77594303] [2021-12-16 04:05:22,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:05:22,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:05:23,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:05:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:05:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:05:23,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 04:05:23,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-16 04:05:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-16 04:05:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 04:05:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:05:23,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:05:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:05:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-16 04:05:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-16 04:05:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-16 04:05:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:05:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:05:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 04:05:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:05:23,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-16 04:05:23,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:05:23,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:05:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-16 04:05:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 04:05:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 04:05:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-16 04:05:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-16 04:05:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:05:23,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:23,945 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-12-16 04:05:23,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:05:23,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77594303] [2021-12-16 04:05:23,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77594303] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:05:23,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:05:23,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 04:05:23,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726438620] [2021-12-16 04:05:23,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:05:23,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 04:05:23,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:05:23,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 04:05:23,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-16 04:05:23,983 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) [2021-12-16 04:05:26,290 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 [] [2021-12-16 04:05:28,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:05:36,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:05:39,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:05:41,192 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:05:42,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:05:42,241 INFO L93 Difference]: Finished difference Result 3241 states and 4734 transitions. [2021-12-16 04:05:42,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 04:05:42,243 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 [2021-12-16 04:05:42,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:05:42,272 INFO L225 Difference]: With dead ends: 3241 [2021-12-16 04:05:42,272 INFO L226 Difference]: Without dead ends: 2145 [2021-12-16 04:05:42,280 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 [2021-12-16 04:05:42,282 INFO L933 BasicCegarLoop]: 1717 mSDtfsCounter, 1611 mSDsluCounter, 3212 mSDsCounter, 0 mSdLazyCounter, 2646 mSolverCounterSat, 657 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1775 SdHoareTripleChecker+Valid, 4929 SdHoareTripleChecker+Invalid, 3306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 657 IncrementalHoareTripleChecker+Valid, 2646 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2021-12-16 04:05:42,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1775 Valid, 4929 Invalid, 3306 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [657 Valid, 2646 Invalid, 3 Unknown, 0 Unchecked, 17.8s Time] [2021-12-16 04:05:42,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2145 states. [2021-12-16 04:05:42,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2145 to 1748. [2021-12-16 04:05:42,437 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) [2021-12-16 04:05:42,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1748 states to 1748 states and 2434 transitions. [2021-12-16 04:05:42,449 INFO L78 Accepts]: Start accepts. Automaton has 1748 states and 2434 transitions. Word has length 227 [2021-12-16 04:05:42,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:05:42,450 INFO L470 AbstractCegarLoop]: Abstraction has 1748 states and 2434 transitions. [2021-12-16 04:05:42,450 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) [2021-12-16 04:05:42,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1748 states and 2434 transitions. [2021-12-16 04:05:42,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-12-16 04:05:42,468 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:05:42,468 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] [2021-12-16 04:05:42,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 04:05:42,469 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:05:42,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:05:42,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1180595489, now seen corresponding path program 1 times [2021-12-16 04:05:42,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:05:42,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465767180] [2021-12-16 04:05:42,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:05:42,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:05:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:42,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:05:42,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:42,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:05:42,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:42,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:05:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:42,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-16 04:05:42,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:42,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:05:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:42,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-16 04:05:42,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:42,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 04:05:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:42,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-16 04:05:42,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:42,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-16 04:05:42,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:42,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:05:42,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:42,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:05:42,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:42,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-16 04:05:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:42,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-16 04:05:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:42,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-16 04:05:42,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:43,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-16 04:05:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:43,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:05:43,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:43,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 04:05:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:43,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:05:43,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:43,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-16 04:05:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:43,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:05:43,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:43,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:05:43,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:43,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-16 04:05:43,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:43,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 04:05:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:43,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 04:05:43,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:43,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-16 04:05:43,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:43,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-16 04:05:43,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:43,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:05:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:43,249 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-16 04:05:43,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:05:43,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465767180] [2021-12-16 04:05:43,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465767180] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:05:43,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:05:43,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 04:05:43,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063104091] [2021-12-16 04:05:43,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:05:43,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 04:05:43,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:05:43,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 04:05:43,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-16 04:05:43,253 INFO L87 Difference]: Start difference. First operand 1748 states and 2434 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) [2021-12-16 04:05:45,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:05:47,513 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:05:51,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:05:54,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:06:01,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:06:03,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:06:03,278 INFO L93 Difference]: Finished difference Result 5805 states and 8263 transitions. [2021-12-16 04:06:03,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 04:06:03,278 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 [2021-12-16 04:06:03,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:06:03,341 INFO L225 Difference]: With dead ends: 5805 [2021-12-16 04:06:03,341 INFO L226 Difference]: Without dead ends: 4071 [2021-12-16 04:06:03,349 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 [2021-12-16 04:06:03,350 INFO L933 BasicCegarLoop]: 1568 mSDtfsCounter, 3116 mSDsluCounter, 3112 mSDsCounter, 0 mSdLazyCounter, 2307 mSolverCounterSat, 1704 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3289 SdHoareTripleChecker+Valid, 4680 SdHoareTripleChecker+Invalid, 4015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1704 IncrementalHoareTripleChecker+Valid, 2307 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2021-12-16 04:06:03,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3289 Valid, 4680 Invalid, 4015 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1704 Valid, 2307 Invalid, 4 Unknown, 0 Unchecked, 19.5s Time] [2021-12-16 04:06:03,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4071 states. [2021-12-16 04:06:03,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4071 to 3285. [2021-12-16 04:06:03,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3285 states, 2470 states have (on average 1.3441295546558705) internal successors, (3320), 2517 states have internal predecessors, (3320), 625 states have call successors, (625), 190 states have call predecessors, (625), 189 states have return successors, (624), 615 states have call predecessors, (624), 624 states have call successors, (624) [2021-12-16 04:06:03,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3285 states to 3285 states and 4569 transitions. [2021-12-16 04:06:03,455 INFO L78 Accepts]: Start accepts. Automaton has 3285 states and 4569 transitions. Word has length 245 [2021-12-16 04:06:03,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:06:03,456 INFO L470 AbstractCegarLoop]: Abstraction has 3285 states and 4569 transitions. [2021-12-16 04:06:03,456 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) [2021-12-16 04:06:03,456 INFO L276 IsEmpty]: Start isEmpty. Operand 3285 states and 4569 transitions. [2021-12-16 04:06:03,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-12-16 04:06:03,466 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:06:03,466 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] [2021-12-16 04:06:03,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 04:06:03,467 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:06:03,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:06:03,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1942391292, now seen corresponding path program 1 times [2021-12-16 04:06:03,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:06:03,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156310499] [2021-12-16 04:06:03,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:06:03,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:06:03,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:03,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:06:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:03,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:06:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:03,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:06:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:03,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-16 04:06:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:03,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:06:03,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:03,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-16 04:06:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:03,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 04:06:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:03,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-16 04:06:03,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:03,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-16 04:06:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:04,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:06:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:04,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:06:04,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:04,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-16 04:06:04,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:04,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-16 04:06:04,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:04,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-16 04:06:04,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:04,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-16 04:06:04,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:04,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:06:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:04,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 04:06:04,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:04,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:06:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:04,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-16 04:06:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:04,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:06:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:04,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:06:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:04,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-16 04:06:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:04,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 04:06:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:04,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 04:06:04,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:04,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-16 04:06:04,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:04,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-16 04:06:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:04,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:06:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:04,308 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-16 04:06:04,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:06:04,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156310499] [2021-12-16 04:06:04,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156310499] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:06:04,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:06:04,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-16 04:06:04,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228390122] [2021-12-16 04:06:04,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:06:04,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 04:06:04,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:06:04,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 04:06:04,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:06:04,311 INFO L87 Difference]: Start difference. First operand 3285 states and 4569 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) [2021-12-16 04:06:06,630 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 [] [2021-12-16 04:06:11,846 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:06:14,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []