./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--dpt_i2o.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--dpt_i2o.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 0c3010ce5e1d1499df5a7edf91735fcbf8e6e49f56d21e0e77b6af352c375fd6 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 04:57:21,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 04:57:21,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 04:57:21,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 04:57:21,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 04:57:21,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 04:57:21,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 04:57:21,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 04:57:21,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 04:57:21,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 04:57:21,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 04:57:21,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 04:57:21,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 04:57:21,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 04:57:21,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 04:57:21,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 04:57:21,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 04:57:21,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 04:57:21,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 04:57:21,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 04:57:21,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 04:57:21,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 04:57:21,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 04:57:21,613 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 04:57:21,616 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 04:57:21,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 04:57:21,616 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 04:57:21,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 04:57:21,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 04:57:21,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 04:57:21,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 04:57:21,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 04:57:21,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 04:57:21,621 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 04:57:21,622 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 04:57:21,622 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 04:57:21,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 04:57:21,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 04:57:21,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 04:57:21,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 04:57:21,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 04:57:21,631 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 04:57:21,666 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 04:57:21,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 04:57:21,667 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 04:57:21,667 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 04:57:21,668 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 04:57:21,669 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 04:57:21,669 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 04:57:21,669 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 04:57:21,670 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 04:57:21,670 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 04:57:21,670 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 04:57:21,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 04:57:21,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 04:57:21,671 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 04:57:21,671 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 04:57:21,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 04:57:21,671 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 04:57:21,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 04:57:21,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 04:57:21,672 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 04:57:21,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 04:57:21,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 04:57:21,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 04:57:21,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 04:57:21,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 04:57:21,673 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 04:57:21,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 04:57:21,673 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 04:57:21,674 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 04:57:21,674 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 04:57:21,674 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 04:57:21,674 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c3010ce5e1d1499df5a7edf91735fcbf8e6e49f56d21e0e77b6af352c375fd6 [2021-12-18 04:57:21,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 04:57:21,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 04:57:21,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 04:57:21,947 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 04:57:21,949 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 04:57:21,950 INFO L432 ainManager$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--dpt_i2o.ko-entry_point.cil.out.i [2021-12-18 04:57:22,021 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aafafa364/7f5b0fb8d6d04fd6a180b8b8e9de54ad/FLAGc37893019 [2021-12-18 04:57:22,836 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 04:57:22,836 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--dpt_i2o.ko-entry_point.cil.out.i [2021-12-18 04:57:22,890 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aafafa364/7f5b0fb8d6d04fd6a180b8b8e9de54ad/FLAGc37893019 [2021-12-18 04:57:23,034 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aafafa364/7f5b0fb8d6d04fd6a180b8b8e9de54ad [2021-12-18 04:57:23,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 04:57:23,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 04:57:23,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 04:57:23,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 04:57:23,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 04:57:23,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 04:57:23" (1/1) ... [2021-12-18 04:57:23,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7739ecc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:57:23, skipping insertion in model container [2021-12-18 04:57:23,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 04:57:23" (1/1) ... [2021-12-18 04:57:23,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 04:57:23,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 04:57:23,591 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4571] [2021-12-18 04:57:23,592 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4572-4573] [2021-12-18 04:57:24,125 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--dpt_i2o.ko-entry_point.cil.out.i[141860,141873] [2021-12-18 04:57:25,334 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 04:57:25,373 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 04:57:25,501 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4571] [2021-12-18 04:57:25,503 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4572-4573] [2021-12-18 04:57:25,513 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--dpt_i2o.ko-entry_point.cil.out.i[141860,141873] [2021-12-18 04:57:25,926 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 04:57:26,002 INFO L208 MainTranslator]: Completed translation [2021-12-18 04:57:26,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:57:26 WrapperNode [2021-12-18 04:57:26,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 04:57:26,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 04:57:26,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 04:57:26,005 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 04:57:26,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:57:26" (1/1) ... [2021-12-18 04:57:26,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:57:26" (1/1) ... [2021-12-18 04:57:26,306 INFO L137 Inliner]: procedures = 250, calls = 2339, calls flagged for inlining = 129, calls inlined = 127, statements flattened = 6369 [2021-12-18 04:57:26,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 04:57:26,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 04:57:26,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 04:57:26,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 04:57:26,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:57:26" (1/1) ... [2021-12-18 04:57:26,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:57:26" (1/1) ... [2021-12-18 04:57:26,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:57:26" (1/1) ... [2021-12-18 04:57:26,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:57:26" (1/1) ... [2021-12-18 04:57:26,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:57:26" (1/1) ... [2021-12-18 04:57:26,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:57:26" (1/1) ... [2021-12-18 04:57:26,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:57:26" (1/1) ... [2021-12-18 04:57:26,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 04:57:26,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 04:57:26,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 04:57:26,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 04:57:26,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:57:26" (1/1) ... [2021-12-18 04:57:26,694 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 04:57:26,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:57:26,721 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) [2021-12-18 04:57:26,748 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 [2021-12-18 04:57:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_cmd_from_context [2021-12-18 04:57:26,764 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_cmd_from_context [2021-12-18 04:57:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-18 04:57:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 04:57:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 04:57:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-18 04:57:26,765 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-18 04:57:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 04:57:26,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 04:57:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_delete_hba [2021-12-18 04:57:26,765 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_delete_hba [2021-12-18 04:57:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2021-12-18 04:57:26,765 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2021-12-18 04:57:26,766 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2021-12-18 04:57:26,766 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2021-12-18 04:57:26,766 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-18 04:57:26,766 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-18 04:57:26,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-18 04:57:26,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-18 04:57:26,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 04:57:26,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 04:57:26,767 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_status_get [2021-12-18 04:57:26,767 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_status_get [2021-12-18 04:57:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_build_sys_table [2021-12-18 04:57:26,768 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_build_sys_table [2021-12-18 04:57:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2021-12-18 04:57:26,768 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2021-12-18 04:57:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_online_hba [2021-12-18 04:57:26,768 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_online_hba [2021-12-18 04:57:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_remove_host [2021-12-18 04:57:26,768 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_remove_host [2021-12-18 04:57:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure __scsi_iterate_devices [2021-12-18 04:57:26,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __scsi_iterate_devices [2021-12-18 04:57:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-18 04:57:26,769 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-18 04:57:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 04:57:26,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 04:57:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_2 [2021-12-18 04:57:26,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_2 [2021-12-18 04:57:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2021-12-18 04:57:26,770 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2021-12-18 04:57:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 04:57:26,770 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 04:57:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_query_scalar [2021-12-18 04:57:26,771 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_query_scalar [2021-12-18 04:57:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure dma_high [2021-12-18 04:57:26,771 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_high [2021-12-18 04:57:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 04:57:26,772 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 04:57:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 04:57:26,772 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 04:57:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_hba_reset [2021-12-18 04:57:26,773 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_hba_reset [2021-12-18 04:57:26,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 04:57:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 04:57:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-18 04:57:26,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-18 04:57:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2021-12-18 04:57:26,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2021-12-18 04:57:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 04:57:26,775 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 04:57:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 04:57:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-18 04:57:26,775 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-18 04:57:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 04:57:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-18 04:57:26,776 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-18 04:57:26,776 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_lct_get [2021-12-18 04:57:26,776 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_lct_get [2021-12-18 04:57:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-18 04:57:26,777 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-18 04:57:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 04:57:26,777 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 04:57:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-18 04:57:26,777 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-18 04:57:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_reparse_lct [2021-12-18 04:57:26,777 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_reparse_lct [2021-12-18 04:57:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 04:57:26,778 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 04:57:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_post_wait [2021-12-18 04:57:26,778 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_post_wait [2021-12-18 04:57:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 04:57:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-18 04:57:26,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-18 04:57:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-18 04:57:26,779 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-18 04:57:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure dma_low [2021-12-18 04:57:26,780 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_low [2021-12-18 04:57:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-18 04:57:26,780 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-18 04:57:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-18 04:57:26,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-18 04:57:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_adjust_queue_depth [2021-12-18 04:57:26,781 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_adjust_queue_depth [2021-12-18 04:57:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 04:57:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_activate_hba [2021-12-18 04:57:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_activate_hba [2021-12-18 04:57:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-18 04:57:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-18 04:57:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 04:57:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_ioctl [2021-12-18 04:57:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_ioctl [2021-12-18 04:57:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_reset_hba [2021-12-18 04:57:26,783 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_reset_hba [2021-12-18 04:57:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 04:57:26,783 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 04:57:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_read_blink_led [2021-12-18 04:57:26,783 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_read_blink_led [2021-12-18 04:57:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-18 04:57:26,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-18 04:57:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-12-18 04:57:26,784 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-12-18 04:57:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 04:57:26,785 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 04:57:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 04:57:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-18 04:57:26,788 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-18 04:57:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_send_nop [2021-12-18 04:57:26,788 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_send_nop [2021-12-18 04:57:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-18 04:57:26,790 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-18 04:57:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 04:57:26,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 04:57:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 04:57:26,795 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_install_device [2021-12-18 04:57:26,795 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_install_device [2021-12-18 04:57:26,796 INFO L130 BoogieDeclarations]: Found specification of procedure dpt_dma64 [2021-12-18 04:57:26,796 INFO L138 BoogieDeclarations]: Found implementation of procedure dpt_dma64 [2021-12-18 04:57:26,796 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-18 04:57:26,796 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-18 04:57:26,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 04:57:26,796 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_cmd_to_context [2021-12-18 04:57:26,796 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_cmd_to_context [2021-12-18 04:57:26,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 04:57:26,797 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 04:57:26,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-18 04:57:26,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-18 04:57:26,797 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 04:57:26,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 04:57:26,797 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-12-18 04:57:26,797 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-12-18 04:57:26,797 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-18 04:57:26,797 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-18 04:57:26,798 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_set_state [2021-12-18 04:57:26,798 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_set_state [2021-12-18 04:57:26,798 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2021-12-18 04:57:26,798 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2021-12-18 04:57:26,798 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_online [2021-12-18 04:57:26,798 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_online [2021-12-18 04:57:26,798 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_post_this [2021-12-18 04:57:26,798 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_post_this [2021-12-18 04:57:26,799 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 04:57:26,799 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 04:57:26,799 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-18 04:57:26,799 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-18 04:57:26,799 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_sys_shutdown [2021-12-18 04:57:26,799 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_sys_shutdown [2021-12-18 04:57:26,800 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-18 04:57:26,800 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-18 04:57:26,800 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-18 04:57:26,800 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-18 04:57:26,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 04:57:26,800 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_report_hba_unit [2021-12-18 04:57:26,800 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_report_hba_unit [2021-12-18 04:57:26,800 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2021-12-18 04:57:26,801 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2021-12-18 04:57:26,801 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-12-18 04:57:26,801 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-12-18 04:57:26,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 04:57:26,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 04:57:26,801 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-18 04:57:26,801 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-18 04:57:27,588 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 04:57:27,590 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 04:57:28,285 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 04:57:38,412 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 04:57:38,441 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 04:57:38,441 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-18 04:57:38,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 04:57:38 BoogieIcfgContainer [2021-12-18 04:57:38,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 04:57:38,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 04:57:38,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 04:57:38,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 04:57:38,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 04:57:23" (1/3) ... [2021-12-18 04:57:38,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60fdfa09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 04:57:38, skipping insertion in model container [2021-12-18 04:57:38,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:57:26" (2/3) ... [2021-12-18 04:57:38,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60fdfa09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 04:57:38, skipping insertion in model container [2021-12-18 04:57:38,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 04:57:38" (3/3) ... [2021-12-18 04:57:38,456 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i [2021-12-18 04:57:38,461 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 04:57:38,461 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 04:57:38,527 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 04:57:38,536 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 [2021-12-18 04:57:38,537 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 04:57:38,602 INFO L276 IsEmpty]: Start isEmpty. Operand has 1998 states, 1483 states have (on average 1.3917734322319621) internal successors, (2064), 1507 states have internal predecessors, (2064), 437 states have call successors, (437), 77 states have call predecessors, (437), 76 states have return successors, (431), 430 states have call predecessors, (431), 431 states have call successors, (431) [2021-12-18 04:57:38,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-18 04:57:38,622 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:57:38,623 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-18 04:57:38,623 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:57:38,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:57:38,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1716966273, now seen corresponding path program 1 times [2021-12-18 04:57:38,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:57:38,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531596059] [2021-12-18 04:57:38,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:57:38,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:57:39,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:57:39,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:57:39,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:57:39,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:57:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:57:39,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:57:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:57:39,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 04:57:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:57:39,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 04:57:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:57:39,412 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-18 04:57:39,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:57:39,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531596059] [2021-12-18 04:57:39,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531596059] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:57:39,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:57:39,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 04:57:39,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057872667] [2021-12-18 04:57:39,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:57:39,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 04:57:39,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:57:39,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 04:57:39,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 04:57:39,468 INFO L87 Difference]: Start difference. First operand has 1998 states, 1483 states have (on average 1.3917734322319621) internal successors, (2064), 1507 states have internal predecessors, (2064), 437 states have call successors, (437), 77 states have call predecessors, (437), 76 states have return successors, (431), 430 states have call predecessors, (431), 431 states have call successors, (431) Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-18 04:57:43,747 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 [] [2021-12-18 04:57:48,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:57:50,452 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:57:58,643 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:58:04,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:58:04,922 INFO L93 Difference]: Finished difference Result 6659 states and 10182 transitions. [2021-12-18 04:58:04,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 04:58:04,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 58 [2021-12-18 04:58:04,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:58:04,996 INFO L225 Difference]: With dead ends: 6659 [2021-12-18 04:58:04,996 INFO L226 Difference]: Without dead ends: 4615 [2021-12-18 04:58:05,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 04:58:05,028 INFO L933 BasicCegarLoop]: 3232 mSDtfsCounter, 4789 mSDsluCounter, 5154 mSDsCounter, 0 mSdLazyCounter, 3865 mSolverCounterSat, 2769 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5150 SdHoareTripleChecker+Valid, 8386 SdHoareTripleChecker+Invalid, 6638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2769 IncrementalHoareTripleChecker+Valid, 3865 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2021-12-18 04:58:05,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5150 Valid, 8386 Invalid, 6638 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2769 Valid, 3865 Invalid, 4 Unknown, 0 Unchecked, 24.6s Time] [2021-12-18 04:58:05,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4615 states. [2021-12-18 04:58:05,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4615 to 3618. [2021-12-18 04:58:05,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3618 states, 2687 states have (on average 1.384443617417194) internal successors, (3720), 2716 states have internal predecessors, (3720), 789 states have call successors, (789), 142 states have call predecessors, (789), 141 states have return successors, (788), 786 states have call predecessors, (788), 788 states have call successors, (788) [2021-12-18 04:58:05,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 5297 transitions. [2021-12-18 04:58:05,392 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 5297 transitions. Word has length 58 [2021-12-18 04:58:05,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:58:05,395 INFO L470 AbstractCegarLoop]: Abstraction has 3618 states and 5297 transitions. [2021-12-18 04:58:05,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-18 04:58:05,398 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 5297 transitions. [2021-12-18 04:58:05,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-18 04:58:05,407 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:58:05,407 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-18 04:58:05,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 04:58:05,408 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:58:05,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:58:05,411 INFO L85 PathProgramCache]: Analyzing trace with hash 543101132, now seen corresponding path program 1 times [2021-12-18 04:58:05,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:58:05,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664703814] [2021-12-18 04:58:05,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:58:05,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:58:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:58:05,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:58:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:58:05,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:58:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:58:05,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:58:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:58:05,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 04:58:05,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:58:05,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 04:58:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:58:05,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 04:58:05,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:58:05,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 04:58:05,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:58:05,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 04:58:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:58:05,984 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-18 04:58:05,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:58:05,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664703814] [2021-12-18 04:58:05,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664703814] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:58:05,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:58:05,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 04:58:05,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680206224] [2021-12-18 04:58:05,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:58:05,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 04:58:05,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:58:05,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 04:58:05,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 04:58:05,988 INFO L87 Difference]: Start difference. First operand 3618 states and 5297 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-18 04:58:10,744 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 [] [2021-12-18 04:58:12,474 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:58:16,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:58:18,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:58:21,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:58:24,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:58:26,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:58:33,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:58:36,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:58:36,960 INFO L93 Difference]: Finished difference Result 9595 states and 14912 transitions. [2021-12-18 04:58:36,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 04:58:36,963 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2021-12-18 04:58:36,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:58:37,056 INFO L225 Difference]: With dead ends: 9595 [2021-12-18 04:58:37,056 INFO L226 Difference]: Without dead ends: 9592 [2021-12-18 04:58:37,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-18 04:58:37,074 INFO L933 BasicCegarLoop]: 3442 mSDtfsCounter, 5638 mSDsluCounter, 7200 mSDsCounter, 0 mSdLazyCounter, 5604 mSolverCounterSat, 3055 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6050 SdHoareTripleChecker+Valid, 10642 SdHoareTripleChecker+Invalid, 8663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3055 IncrementalHoareTripleChecker+Valid, 5604 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.1s IncrementalHoareTripleChecker+Time [2021-12-18 04:58:37,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6050 Valid, 10642 Invalid, 8663 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3055 Valid, 5604 Invalid, 4 Unknown, 0 Unchecked, 30.1s Time] [2021-12-18 04:58:37,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9592 states. [2021-12-18 04:58:37,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9592 to 7428. [2021-12-18 04:58:37,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7428 states, 5506 states have (on average 1.3908463494369778) internal successors, (7658), 5570 states have internal predecessors, (7658), 1627 states have call successors, (1627), 271 states have call predecessors, (1627), 294 states have return successors, (1964), 1632 states have call predecessors, (1964), 1626 states have call successors, (1964) [2021-12-18 04:58:37,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7428 states to 7428 states and 11249 transitions. [2021-12-18 04:58:37,474 INFO L78 Accepts]: Start accepts. Automaton has 7428 states and 11249 transitions. Word has length 84 [2021-12-18 04:58:37,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:58:37,475 INFO L470 AbstractCegarLoop]: Abstraction has 7428 states and 11249 transitions. [2021-12-18 04:58:37,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-18 04:58:37,476 INFO L276 IsEmpty]: Start isEmpty. Operand 7428 states and 11249 transitions. [2021-12-18 04:58:37,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-18 04:58:37,487 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:58:37,487 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-18 04:58:37,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 04:58:37,489 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:58:37,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:58:37,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1033473605, now seen corresponding path program 1 times [2021-12-18 04:58:37,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:58:37,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905702694] [2021-12-18 04:58:37,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:58:37,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:58:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:58:37,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:58:37,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:58:37,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:58:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:58:37,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:58:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:58:37,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 04:58:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:58:37,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 04:58:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:58:37,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 04:58:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:58:37,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 04:58:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:58:37,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 04:58:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:58:37,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 04:58:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:58:37,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 04:58:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:58:37,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 04:58:37,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:58:37,815 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-18 04:58:37,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:58:37,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905702694] [2021-12-18 04:58:37,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905702694] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:58:37,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:58:37,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 04:58:37,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111861262] [2021-12-18 04:58:37,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:58:37,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 04:58:37,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:58:37,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 04:58:37,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 04:58:37,818 INFO L87 Difference]: Start difference. First operand 7428 states and 11249 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 04:58:42,006 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 [] [2021-12-18 04:58:46,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:58:47,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:58:52,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:59:03,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:59:06,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:59:06,623 INFO L93 Difference]: Finished difference Result 27401 states and 42818 transitions. [2021-12-18 04:59:06,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-18 04:59:06,624 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2021-12-18 04:59:06,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:59:06,776 INFO L225 Difference]: With dead ends: 27401 [2021-12-18 04:59:06,776 INFO L226 Difference]: Without dead ends: 19984 [2021-12-18 04:59:06,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-12-18 04:59:06,856 INFO L933 BasicCegarLoop]: 3118 mSDtfsCounter, 7515 mSDsluCounter, 6508 mSDsCounter, 0 mSdLazyCounter, 5752 mSolverCounterSat, 5404 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7993 SdHoareTripleChecker+Valid, 9626 SdHoareTripleChecker+Invalid, 11159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5404 IncrementalHoareTripleChecker+Valid, 5752 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2021-12-18 04:59:06,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7993 Valid, 9626 Invalid, 11159 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5404 Valid, 5752 Invalid, 3 Unknown, 0 Unchecked, 27.7s Time] [2021-12-18 04:59:06,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19984 states. [2021-12-18 04:59:07,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19984 to 15549. [2021-12-18 04:59:07,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15549 states, 11688 states have (on average 1.3963039014373717) internal successors, (16320), 11815 states have internal predecessors, (16320), 3282 states have call successors, (3282), 492 states have call predecessors, (3282), 578 states have return successors, (4014), 3327 states have call predecessors, (4014), 3281 states have call successors, (4014) [2021-12-18 04:59:07,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15549 states to 15549 states and 23616 transitions. [2021-12-18 04:59:07,863 INFO L78 Accepts]: Start accepts. Automaton has 15549 states and 23616 transitions. Word has length 103 [2021-12-18 04:59:07,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:59:07,865 INFO L470 AbstractCegarLoop]: Abstraction has 15549 states and 23616 transitions. [2021-12-18 04:59:07,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 04:59:07,866 INFO L276 IsEmpty]: Start isEmpty. Operand 15549 states and 23616 transitions. [2021-12-18 04:59:07,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-18 04:59:07,879 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:59:07,879 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-18 04:59:07,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 04:59:07,879 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:59:07,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:59:07,880 INFO L85 PathProgramCache]: Analyzing trace with hash 123867907, now seen corresponding path program 1 times [2021-12-18 04:59:07,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:59:07,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180821186] [2021-12-18 04:59:07,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:59:07,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:59:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:59:08,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:59:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:59:08,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:59:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:59:08,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:59:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:59:08,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 04:59:08,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:59:08,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 04:59:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:59:08,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:59:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:59:08,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:59:08,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:59:08,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-18 04:59:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:59:08,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-18 04:59:08,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:59:08,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 04:59:08,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:59:08,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 04:59:08,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:59:08,322 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-18 04:59:08,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:59:08,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180821186] [2021-12-18 04:59:08,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180821186] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:59:08,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:59:08,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 04:59:08,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382013837] [2021-12-18 04:59:08,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:59:08,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 04:59:08,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:59:08,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 04:59:08,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-12-18 04:59:08,326 INFO L87 Difference]: Start difference. First operand 15549 states and 23616 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 5 states have internal predecessors, (75), 4 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2021-12-18 04:59:15,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:59:24,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:59:31,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:59:42,192 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:59:44,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:59:46,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:59:48,810 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:59:55,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:59:55,326 INFO L93 Difference]: Finished difference Result 58421 states and 92885 transitions. [2021-12-18 04:59:55,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-12-18 04:59:55,327 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 5 states have internal predecessors, (75), 4 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 114 [2021-12-18 04:59:55,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:59:55,743 INFO L225 Difference]: With dead ends: 58421 [2021-12-18 04:59:55,743 INFO L226 Difference]: Without dead ends: 42892 [2021-12-18 04:59:56,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=306, Invalid=884, Unknown=0, NotChecked=0, Total=1190 [2021-12-18 04:59:56,015 INFO L933 BasicCegarLoop]: 3340 mSDtfsCounter, 10324 mSDsluCounter, 14754 mSDsCounter, 0 mSdLazyCounter, 13080 mSolverCounterSat, 4290 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10780 SdHoareTripleChecker+Valid, 18094 SdHoareTripleChecker+Invalid, 17377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4290 IncrementalHoareTripleChecker+Valid, 13080 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.5s IncrementalHoareTripleChecker+Time [2021-12-18 04:59:56,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10780 Valid, 18094 Invalid, 17377 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4290 Valid, 13080 Invalid, 7 Unknown, 0 Unchecked, 44.5s Time] [2021-12-18 04:59:56,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42892 states. [2021-12-18 04:59:57,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42892 to 30960. [2021-12-18 04:59:57,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30960 states, 23257 states have (on average 1.3955798254289031) internal successors, (32457), 23559 states have internal predecessors, (32457), 6536 states have call successors, (6536), 977 states have call predecessors, (6536), 1166 states have return successors, (8364), 6595 states have call predecessors, (8364), 6535 states have call successors, (8364) [2021-12-18 04:59:58,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30960 states to 30960 states and 47357 transitions. [2021-12-18 04:59:58,057 INFO L78 Accepts]: Start accepts. Automaton has 30960 states and 47357 transitions. Word has length 114 [2021-12-18 04:59:58,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:59:58,060 INFO L470 AbstractCegarLoop]: Abstraction has 30960 states and 47357 transitions. [2021-12-18 04:59:58,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 5 states have internal predecessors, (75), 4 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2021-12-18 04:59:58,060 INFO L276 IsEmpty]: Start isEmpty. Operand 30960 states and 47357 transitions. [2021-12-18 04:59:58,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-18 04:59:58,076 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:59:58,076 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-18 04:59:58,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 04:59:58,077 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:59:58,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:59:58,078 INFO L85 PathProgramCache]: Analyzing trace with hash -144113110, now seen corresponding path program 1 times [2021-12-18 04:59:58,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:59:58,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484282716] [2021-12-18 04:59:58,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:59:58,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:59:58,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:59:58,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:59:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:59:58,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:59:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:59:58,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:59:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:59:58,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 04:59:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:59:58,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 04:59:58,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:59:58,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:59:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:59:58,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:59:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:59:58,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 04:59:58,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:59:58,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 04:59:58,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:59:58,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 04:59:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:59:58,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 04:59:58,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:59:58,462 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-18 04:59:58,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:59:58,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484282716] [2021-12-18 04:59:58,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484282716] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:59:58,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:59:58,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 04:59:58,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877093468] [2021-12-18 04:59:58,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:59:58,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 04:59:58,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:59:58,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 04:59:58,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-12-18 04:59:58,465 INFO L87 Difference]: Start difference. First operand 30960 states and 47357 transitions. Second operand has 10 states, 10 states have (on average 7.6) internal successors, (76), 5 states have internal predecessors, (76), 4 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2021-12-18 05:00:05,411 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 [] [2021-12-18 05:00:10,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:00:13,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:00:24,917 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:00:27,062 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:00:30,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:00:36,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:00:41,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:00:41,161 INFO L93 Difference]: Finished difference Result 116488 states and 186930 transitions. [2021-12-18 05:00:41,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-12-18 05:00:41,161 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 5 states have internal predecessors, (76), 4 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 115 [2021-12-18 05:00:41,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:00:42,070 INFO L225 Difference]: With dead ends: 116488 [2021-12-18 05:00:42,071 INFO L226 Difference]: Without dead ends: 85548 [2021-12-18 05:00:42,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=306, Invalid=884, Unknown=0, NotChecked=0, Total=1190 [2021-12-18 05:00:42,332 INFO L933 BasicCegarLoop]: 3030 mSDtfsCounter, 13761 mSDsluCounter, 11679 mSDsCounter, 0 mSdLazyCounter, 8618 mSolverCounterSat, 10243 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14222 SdHoareTripleChecker+Valid, 14709 SdHoareTripleChecker+Invalid, 18867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10243 IncrementalHoareTripleChecker+Valid, 8618 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.5s IncrementalHoareTripleChecker+Time [2021-12-18 05:00:42,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14222 Valid, 14709 Invalid, 18867 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10243 Valid, 8618 Invalid, 6 Unknown, 0 Unchecked, 38.5s Time] [2021-12-18 05:00:42,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85548 states. [2021-12-18 05:00:45,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85548 to 61830. [2021-12-18 05:00:45,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61830 states, 46443 states have (on average 1.3948065370454106) internal successors, (64779), 47063 states have internal predecessors, (64779), 13044 states have call successors, (13044), 1947 states have call predecessors, (13044), 2342 states have return successors, (17461), 13163 states have call predecessors, (17461), 13043 states have call successors, (17461) [2021-12-18 05:00:46,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61830 states to 61830 states and 95284 transitions. [2021-12-18 05:00:46,112 INFO L78 Accepts]: Start accepts. Automaton has 61830 states and 95284 transitions. Word has length 115 [2021-12-18 05:00:46,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:00:46,113 INFO L470 AbstractCegarLoop]: Abstraction has 61830 states and 95284 transitions. [2021-12-18 05:00:46,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 5 states have internal predecessors, (76), 4 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2021-12-18 05:00:46,113 INFO L276 IsEmpty]: Start isEmpty. Operand 61830 states and 95284 transitions. [2021-12-18 05:00:46,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-18 05:00:46,129 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:00:46,130 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-18 05:00:46,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 05:00:46,130 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:00:46,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:00:46,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1590762838, now seen corresponding path program 1 times [2021-12-18 05:00:46,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:00:46,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150502560] [2021-12-18 05:00:46,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:00:46,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:00:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:00:46,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:00:46,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:00:46,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 05:00:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:00:46,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 05:00:46,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:00:46,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 05:00:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:00:46,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 05:00:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:00:46,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:00:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:00:46,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 05:00:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:00:46,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 05:00:46,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:00:46,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 05:00:46,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:00:46,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 05:00:46,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:00:46,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 05:00:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:00:46,491 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-18 05:00:46,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:00:46,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150502560] [2021-12-18 05:00:46,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150502560] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:00:46,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:00:46,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 05:00:46,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741005145] [2021-12-18 05:00:46,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:00:46,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 05:00:46,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:00:46,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 05:00:46,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-12-18 05:00:46,494 INFO L87 Difference]: Start difference. First operand 61830 states and 95284 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 5 states have internal predecessors, (77), 4 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2021-12-18 05:00:52,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:00:57,398 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:00:58,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:01:03,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:01:12,698 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:01:15,702 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:01:17,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:01:28,597 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:01:35,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:01:35,278 INFO L93 Difference]: Finished difference Result 232758 states and 377179 transitions. [2021-12-18 05:01:35,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-12-18 05:01:35,279 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 5 states have internal predecessors, (77), 4 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 116 [2021-12-18 05:01:35,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:01:37,004 INFO L225 Difference]: With dead ends: 232758 [2021-12-18 05:01:37,005 INFO L226 Difference]: Without dead ends: 170948 [2021-12-18 05:01:37,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=306, Invalid=884, Unknown=0, NotChecked=0, Total=1190 [2021-12-18 05:01:37,640 INFO L933 BasicCegarLoop]: 3051 mSDtfsCounter, 13368 mSDsluCounter, 12808 mSDsCounter, 0 mSdLazyCounter, 10068 mSolverCounterSat, 8759 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13828 SdHoareTripleChecker+Valid, 15859 SdHoareTripleChecker+Invalid, 18833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8759 IncrementalHoareTripleChecker+Valid, 10068 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.3s IncrementalHoareTripleChecker+Time [2021-12-18 05:01:37,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13828 Valid, 15859 Invalid, 18833 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8759 Valid, 10068 Invalid, 6 Unknown, 0 Unchecked, 40.3s Time] [2021-12-18 05:01:37,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170948 states. [2021-12-18 05:01:43,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170948 to 123578. [2021-12-18 05:01:43,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123578 states, 92823 states have (on average 1.3942988267993923) internal successors, (129423), 94079 states have internal predecessors, (129423), 26060 states have call successors, (26060), 3887 states have call predecessors, (26060), 4694 states have return successors, (36551), 26299 states have call predecessors, (36551), 26059 states have call successors, (36551) [2021-12-18 05:01:44,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123578 states to 123578 states and 192034 transitions. [2021-12-18 05:01:44,997 INFO L78 Accepts]: Start accepts. Automaton has 123578 states and 192034 transitions. Word has length 116 [2021-12-18 05:01:44,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:01:44,998 INFO L470 AbstractCegarLoop]: Abstraction has 123578 states and 192034 transitions. [2021-12-18 05:01:44,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 5 states have internal predecessors, (77), 4 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2021-12-18 05:01:44,998 INFO L276 IsEmpty]: Start isEmpty. Operand 123578 states and 192034 transitions. [2021-12-18 05:01:45,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-18 05:01:45,014 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:01:45,014 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-18 05:01:45,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 05:01:45,015 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:01:45,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:01:45,015 INFO L85 PathProgramCache]: Analyzing trace with hash -921436943, now seen corresponding path program 1 times [2021-12-18 05:01:45,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:01:45,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141346992] [2021-12-18 05:01:45,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:01:45,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:01:45,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:01:45,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:01:45,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:01:45,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 05:01:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:01:45,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 05:01:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:01:45,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 05:01:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:01:45,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:01:45,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:01:45,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:01:45,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:01:45,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 05:01:45,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:01:45,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 05:01:45,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:01:45,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 05:01:45,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:01:45,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 05:01:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:01:45,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 05:01:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:01:45,390 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-18 05:01:45,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:01:45,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141346992] [2021-12-18 05:01:45,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141346992] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:01:45,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:01:45,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 05:01:45,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130833177] [2021-12-18 05:01:45,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:01:45,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 05:01:45,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:01:45,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 05:01:45,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-12-18 05:01:45,393 INFO L87 Difference]: Start difference. First operand 123578 states and 192034 transitions. Second operand has 10 states, 10 states have (on average 7.8) internal successors, (78), 5 states have internal predecessors, (78), 4 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2021-12-18 05:01:51,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:01:55,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:02:00,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:02:07,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:02:09,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:02:25,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:02:37,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:02:37,214 INFO L93 Difference]: Finished difference Result 465314 states and 762269 transitions. [2021-12-18 05:02:37,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-12-18 05:02:37,214 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 5 states have internal predecessors, (78), 4 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 117 [2021-12-18 05:02:37,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:02:41,306 INFO L225 Difference]: With dead ends: 465314 [2021-12-18 05:02:41,306 INFO L226 Difference]: Without dead ends: 335766 [2021-12-18 05:02:42,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=306, Invalid=884, Unknown=0, NotChecked=0, Total=1190 [2021-12-18 05:02:42,955 INFO L933 BasicCegarLoop]: 3060 mSDtfsCounter, 12931 mSDsluCounter, 11808 mSDsCounter, 0 mSdLazyCounter, 8629 mSolverCounterSat, 8741 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13390 SdHoareTripleChecker+Valid, 14868 SdHoareTripleChecker+Invalid, 17376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8741 IncrementalHoareTripleChecker+Valid, 8629 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.5s IncrementalHoareTripleChecker+Time [2021-12-18 05:02:42,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13390 Valid, 14868 Invalid, 17376 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8741 Valid, 8629 Invalid, 6 Unknown, 0 Unchecked, 33.5s Time] [2021-12-18 05:02:43,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335766 states.