./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--misc--vmw_vmci--vmw_vmci.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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--misc--vmw_vmci--vmw_vmci.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 8d123e3c2a314a098b4e7a140b822a7b44f2ae282ca90c74ec5605a44f397143 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 07:00:22,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 07:00:22,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 07:00:22,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 07:00:22,222 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 07:00:22,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 07:00:22,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 07:00:22,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 07:00:22,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 07:00:22,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 07:00:22,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 07:00:22,233 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 07:00:22,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 07:00:22,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 07:00:22,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 07:00:22,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 07:00:22,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 07:00:22,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 07:00:22,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 07:00:22,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 07:00:22,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 07:00:22,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 07:00:22,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 07:00:22,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 07:00:22,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 07:00:22,256 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 07:00:22,256 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 07:00:22,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 07:00:22,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 07:00:22,258 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 07:00:22,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 07:00:22,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 07:00:22,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 07:00:22,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 07:00:22,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 07:00:22,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 07:00:22,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 07:00:22,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 07:00:22,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 07:00:22,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 07:00:22,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 07:00:22,264 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 07:00:22,283 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 07:00:22,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 07:00:22,287 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 07:00:22,288 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 07:00:22,288 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 07:00:22,289 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 07:00:22,289 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 07:00:22,289 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 07:00:22,289 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 07:00:22,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 07:00:22,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 07:00:22,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 07:00:22,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 07:00:22,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 07:00:22,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 07:00:22,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 07:00:22,291 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 07:00:22,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 07:00:22,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 07:00:22,292 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 07:00:22,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 07:00:22,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 07:00:22,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 07:00:22,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 07:00:22,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 07:00:22,292 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 07:00:22,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 07:00:22,294 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 07:00:22,294 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 07:00:22,294 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 07:00:22,294 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 07:00:22,294 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d123e3c2a314a098b4e7a140b822a7b44f2ae282ca90c74ec5605a44f397143 [2021-12-18 07:00:22,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 07:00:22,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 07:00:22,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 07:00:22,501 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 07:00:22,502 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 07:00:22,502 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--misc--vmw_vmci--vmw_vmci.ko-entry_point.cil.out.i [2021-12-18 07:00:22,549 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4732c87c2/9d35efbe3e8f4eff9615cff03ee260e1/FLAG2006d3749 [2021-12-18 07:00:23,324 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 07:00:23,325 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--misc--vmw_vmci--vmw_vmci.ko-entry_point.cil.out.i [2021-12-18 07:00:23,388 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4732c87c2/9d35efbe3e8f4eff9615cff03ee260e1/FLAG2006d3749 [2021-12-18 07:00:23,842 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4732c87c2/9d35efbe3e8f4eff9615cff03ee260e1 [2021-12-18 07:00:23,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 07:00:23,846 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 07:00:23,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 07:00:23,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 07:00:23,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 07:00:23,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:00:23" (1/1) ... [2021-12-18 07:00:23,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@653eef1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:00:23, skipping insertion in model container [2021-12-18 07:00:23,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:00:23" (1/1) ... [2021-12-18 07:00:23,856 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 07:00:23,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 07:00:27,728 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--misc--vmw_vmci--vmw_vmci.ko-entry_point.cil.out.i[490207,490220] [2021-12-18 07:00:28,098 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 07:00:28,156 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 07:00:28,495 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--misc--vmw_vmci--vmw_vmci.ko-entry_point.cil.out.i[490207,490220] [2021-12-18 07:00:28,507 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 07:00:28,768 INFO L208 MainTranslator]: Completed translation [2021-12-18 07:00:28,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:00:28 WrapperNode [2021-12-18 07:00:28,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 07:00:28,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 07:00:28,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 07:00:28,769 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 07:00:28,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:00:28" (1/1) ... [2021-12-18 07:00:28,913 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:00:28" (1/1) ... [2021-12-18 07:00:29,165 INFO L137 Inliner]: procedures = 713, calls = 6159, calls flagged for inlining = 240, calls inlined = 191, statements flattened = 9050 [2021-12-18 07:00:29,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 07:00:29,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 07:00:29,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 07:00:29,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 07:00:29,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:00:28" (1/1) ... [2021-12-18 07:00:29,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:00:28" (1/1) ... [2021-12-18 07:00:29,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:00:28" (1/1) ... [2021-12-18 07:00:29,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:00:28" (1/1) ... [2021-12-18 07:00:29,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:00:28" (1/1) ... [2021-12-18 07:00:29,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:00:28" (1/1) ... [2021-12-18 07:00:29,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:00:28" (1/1) ... [2021-12-18 07:00:29,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 07:00:29,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 07:00:29,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 07:00:29,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 07:00:29,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:00:28" (1/1) ... [2021-12-18 07:00:29,601 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 07:00:29,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 07:00:29,689 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 07:00:29,730 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 07:00:29,759 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-18 07:00:29,759 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-18 07:00:29,759 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_msix_exact [2021-12-18 07:00:29,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_msix_exact [2021-12-18 07:00:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_signal_notify [2021-12-18 07:00:29,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_signal_notify [2021-12-18 07:00:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_send [2021-12-18 07:00:29,760 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_send [2021-12-18 07:00:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_exists [2021-12-18 07:00:29,761 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_exists [2021-12-18 07:00:29,761 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_guest_code_active [2021-12-18 07:00:29,761 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_guest_code_active [2021-12-18 07:00:29,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_subscriber_mutex [2021-12-18 07:00:29,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_subscriber_mutex [2021-12-18 07:00:29,761 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_put [2021-12-18 07:00:29,761 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_put [2021-12-18 07:00:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 07:00:29,762 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 07:00:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_open [2021-12-18 07:00:29,762 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_open [2021-12-18 07:00:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_unregister_user_memory [2021-12-18 07:00:29,762 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_unregister_user_memory [2021-12-18 07:00:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_add_notification [2021-12-18 07:00:29,763 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_add_notification [2021-12-18 07:00:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_unlocked_ioctl [2021-12-18 07:00:29,763 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_unlocked_ioctl [2021-12-18 07:00:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-18 07:00:29,763 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-18 07:00:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 07:00:29,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 07:00:29,764 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_get_id [2021-12-18 07:00:29,764 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_get_id [2021-12-18 07:00:29,764 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-18 07:00:29,764 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-18 07:00:29,764 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_has_entry [2021-12-18 07:00:29,764 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_has_entry [2021-12-18 07:00:29,764 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_destroy [2021-12-18 07:00:29,765 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_destroy [2021-12-18 07:00:29,765 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_send_datagram [2021-12-18 07:00:29,765 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_send_datagram [2021-12-18 07:00:29,765 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-12-18 07:00:29,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-12-18 07:00:29,765 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_get [2021-12-18 07:00:29,765 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_get [2021-12-18 07:00:29,766 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_get_entry [2021-12-18 07:00:29,766 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_get_entry [2021-12-18 07:00:29,766 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2021-12-18 07:00:29,766 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2021-12-18 07:00:29,766 INFO L130 BoogieDeclarations]: Found specification of procedure qp_acquire_queue_mutex [2021-12-18 07:00:29,766 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_acquire_queue_mutex [2021-12-18 07:00:29,766 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_get_context_id [2021-12-18 07:00:29,767 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_get_context_id [2021-12-18 07:00:29,767 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_map_queues [2021-12-18 07:00:29,767 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_map_queues [2021-12-18 07:00:29,767 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_add [2021-12-18 07:00:29,767 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_add [2021-12-18 07:00:29,767 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-18 07:00:29,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-18 07:00:29,768 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 07:00:29,768 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 07:00:29,768 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock___1 [2021-12-18 07:00:29,768 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock___1 [2021-12-18 07:00:29,768 INFO L130 BoogieDeclarations]: Found specification of procedure no_printk [2021-12-18 07:00:29,768 INFO L138 BoogieDeclarations]: Found implementation of procedure no_printk [2021-12-18 07:00:29,768 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_get_head [2021-12-18 07:00:29,768 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_get_head [2021-12-18 07:00:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure dbell_delayed_dispatch [2021-12-18 07:00:29,769 INFO L138 BoogieDeclarations]: Found implementation of procedure dbell_delayed_dispatch [2021-12-18 07:00:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2021-12-18 07:00:29,769 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2021-12-18 07:00:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_vmci_host_dev [2021-12-18 07:00:29,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_vmci_host_dev [2021-12-18 07:00:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-18 07:00:29,770 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-18 07:00:29,770 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-18 07:00:29,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 07:00:29,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 07:00:29,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_qp_list [2021-12-18 07:00:29,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_qp_list [2021-12-18 07:00:29,770 INFO L130 BoogieDeclarations]: Found specification of procedure dg_delayed_dispatch [2021-12-18 07:00:29,770 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_delayed_dispatch [2021-12-18 07:00:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 07:00:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2021-12-18 07:00:29,771 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2021-12-18 07:00:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-18 07:00:29,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-18 07:00:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-18 07:00:29,771 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-18 07:00:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 07:00:29,772 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 07:00:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure dg_dispatch_as_host [2021-12-18 07:00:29,772 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_dispatch_as_host [2021-12-18 07:00:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 07:00:29,772 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 07:00:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 07:00:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure qp_reset_saved_headers [2021-12-18 07:00:29,772 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_reset_saved_headers [2021-12-18 07:00:29,773 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_handle [2021-12-18 07:00:29,773 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_handle [2021-12-18 07:00:29,773 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_add_entry [2021-12-18 07:00:29,773 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_add_entry [2021-12-18 07:00:29,773 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_invalid [2021-12-18 07:00:29,773 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_invalid [2021-12-18 07:00:29,773 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_dispatch [2021-12-18 07:00:29,774 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_dispatch [2021-12-18 07:00:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 07:00:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-12-18 07:00:29,774 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-12-18 07:00:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_vmci_queue_kern_if [2021-12-18 07:00:29,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_vmci_queue_kern_if [2021-12-18 07:00:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 07:00:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure kmap [2021-12-18 07:00:29,775 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap [2021-12-18 07:00:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_find [2021-12-18 07:00:29,775 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_find [2021-12-18 07:00:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 07:00:29,775 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 07:00:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure __validate_creds [2021-12-18 07:00:29,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __validate_creds [2021-12-18 07:00:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2021-12-18 07:00:29,776 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2021-12-18 07:00:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_clear_notify_call [2021-12-18 07:00:29,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_clear_notify_call [2021-12-18 07:00:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-12-18 07:00:29,776 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-12-18 07:00:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure qp_notify_peer [2021-12-18 07:00:29,776 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_notify_peer [2021-12-18 07:00:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-12-18 07:00:29,777 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-12-18 07:00:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-18 07:00:29,777 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-18 07:00:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_unset_notify [2021-12-18 07:00:29,777 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_unset_notify [2021-12-18 07:00:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure __hlist_del [2021-12-18 07:00:29,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __hlist_del [2021-12-18 07:00:29,778 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_event_exit [2021-12-18 07:00:29,778 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_event_exit [2021-12-18 07:00:29,778 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_destroy [2021-12-18 07:00:29,778 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_destroy [2021-12-18 07:00:29,778 INFO L130 BoogieDeclarations]: Found specification of procedure get_cred [2021-12-18 07:00:29,778 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cred [2021-12-18 07:00:29,778 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-18 07:00:29,778 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-18 07:00:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2021-12-18 07:00:29,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2021-12-18 07:00:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure qp_lock [2021-12-18 07:00:29,779 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_lock [2021-12-18 07:00:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2021-12-18 07:00:29,779 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2021-12-18 07:00:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_by_handle [2021-12-18 07:00:29,779 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_by_handle [2021-12-18 07:00:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-18 07:00:29,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-18 07:00:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure qp_notify_peer_local [2021-12-18 07:00:29,780 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_notify_peer_local [2021-12-18 07:00:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure vunmap [2021-12-18 07:00:29,780 INFO L138 BoogieDeclarations]: Found implementation of procedure vunmap [2021-12-18 07:00:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_get_user_memory [2021-12-18 07:00:29,780 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_get_user_memory [2021-12-18 07:00:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_fire_notification [2021-12-18 07:00:29,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_fire_notification [2021-12-18 07:00:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 07:00:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure qp_unlock [2021-12-18 07:00:29,781 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_unlock [2021-12-18 07:00:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_close [2021-12-18 07:00:29,781 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_close [2021-12-18 07:00:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 07:00:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_guest_probe_device [2021-12-18 07:00:29,781 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_guest_probe_device [2021-12-18 07:00:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_invalid___1 [2021-12-18 07:00:29,782 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_invalid___1 [2021-12-18 07:00:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_invalid___0 [2021-12-18 07:00:29,782 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_invalid___0 [2021-12-18 07:00:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_alloc_queue [2021-12-18 07:00:29,782 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_alloc_queue [2021-12-18 07:00:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 07:00:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 07:00:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_free_ctx [2021-12-18 07:00:29,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_free_ctx [2021-12-18 07:00:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 07:00:29,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 07:00:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_poll [2021-12-18 07:00:29,783 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_poll [2021-12-18 07:00:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-18 07:00:29,783 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-18 07:00:29,784 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-18 07:00:29,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-18 07:00:29,784 INFO L130 BoogieDeclarations]: Found specification of procedure qp_release_pages [2021-12-18 07:00:29,784 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_release_pages [2021-12-18 07:00:29,784 INFO L130 BoogieDeclarations]: Found specification of procedure qp_cleanup_queue_mutex [2021-12-18 07:00:29,784 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_cleanup_queue_mutex [2021-12-18 07:00:29,784 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_get_size [2021-12-18 07:00:29,784 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_get_size [2021-12-18 07:00:29,785 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch_hypercall [2021-12-18 07:00:29,785 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch_hypercall [2021-12-18 07:00:29,785 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-18 07:00:29,785 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-18 07:00:29,785 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-18 07:00:29,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-18 07:00:29,785 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_remove_entry [2021-12-18 07:00:29,785 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_remove_entry [2021-12-18 07:00:29,785 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 07:00:29,786 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 07:00:29,786 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_q_header_init [2021-12-18 07:00:29,786 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_q_header_init [2021-12-18 07:00:29,786 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add_rcu [2021-12-18 07:00:29,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add_rcu [2021-12-18 07:00:29,786 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_register_user_memory [2021-12-18 07:00:29,786 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_register_user_memory [2021-12-18 07:00:29,786 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-18 07:00:29,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-18 07:00:29,787 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch_guest_work [2021-12-18 07:00:29,787 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch_guest_work [2021-12-18 07:00:29,787 INFO L130 BoogieDeclarations]: Found specification of procedure drv_cp_harray_to_user [2021-12-18 07:00:29,787 INFO L138 BoogieDeclarations]: Found implementation of procedure drv_cp_harray_to_user [2021-12-18 07:00:29,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 07:00:29,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 07:00:29,787 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-18 07:00:29,788 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-18 07:00:29,788 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_remove_tail [2021-12-18 07:00:29,788 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_remove_tail [2021-12-18 07:00:29,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_subscriber_mutex [2021-12-18 07:00:29,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_subscriber_mutex [2021-12-18 07:00:29,788 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-18 07:00:29,788 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-18 07:00:29,788 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_supports_host_qp [2021-12-18 07:00:29,788 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_supports_host_qp [2021-12-18 07:00:29,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 07:00:29,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 07:00:29,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 07:00:29,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 07:00:29,789 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qp_broker_detach [2021-12-18 07:00:29,789 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qp_broker_detach [2021-12-18 07:00:29,789 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_enqueue_datagram [2021-12-18 07:00:29,789 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_enqueue_datagram [2021-12-18 07:00:29,790 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-18 07:00:29,790 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-18 07:00:29,790 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_unmap_queues [2021-12-18 07:00:29,790 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_unmap_queues [2021-12-18 07:00:29,790 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_rcu [2021-12-18 07:00:29,790 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_rcu [2021-12-18 07:00:29,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_qp_list [2021-12-18 07:00:29,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_qp_list [2021-12-18 07:00:29,790 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-18 07:00:29,791 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-18 07:00:29,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 07:00:29,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 07:00:29,791 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-18 07:00:29,791 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-18 07:00:29,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 07:00:29,791 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 07:00:29,791 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2021-12-18 07:00:29,792 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2021-12-18 07:00:29,792 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 07:00:29,792 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 07:00:29,792 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msix [2021-12-18 07:00:29,792 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msix [2021-12-18 07:00:29,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_vmci_queue_kern_if [2021-12-18 07:00:29,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_vmci_queue_kern_if [2021-12-18 07:00:29,792 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_notify_dbell [2021-12-18 07:00:29,793 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_notify_dbell [2021-12-18 07:00:29,793 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_append_entry [2021-12-18 07:00:29,793 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_append_entry [2021-12-18 07:00:29,793 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2021-12-18 07:00:29,793 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2021-12-18 07:00:29,793 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-18 07:00:29,793 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-18 07:00:29,793 INFO L130 BoogieDeclarations]: Found specification of procedure qp_broker_handle_to_entry [2021-12-18 07:00:29,794 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_broker_handle_to_entry [2021-12-18 07:00:29,794 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qpair_detach [2021-12-18 07:00:29,794 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qpair_detach [2021-12-18 07:00:29,794 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-18 07:00:29,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-18 07:00:29,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 07:00:29,794 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-18 07:00:29,794 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-18 07:00:29,794 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_hash [2021-12-18 07:00:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_hash [2021-12-18 07:00:29,795 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_create [2021-12-18 07:00:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_create [2021-12-18 07:00:29,795 INFO L130 BoogieDeclarations]: Found specification of procedure event_find [2021-12-18 07:00:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure event_find [2021-12-18 07:00:29,795 INFO L130 BoogieDeclarations]: Found specification of procedure qp_broker_alloc [2021-12-18 07:00:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_broker_alloc [2021-12-18 07:00:29,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 07:00:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch_host_work [2021-12-18 07:00:29,796 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch_host_work [2021-12-18 07:00:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-12-18 07:00:29,796 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-12-18 07:00:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure hash_32 [2021-12-18 07:00:29,796 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_32 [2021-12-18 07:00:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail_rcu [2021-12-18 07:00:29,796 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail_rcu [2021-12-18 07:00:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock___1 [2021-12-18 07:00:29,797 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock___1 [2021-12-18 07:00:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure qp_guest_endpoint_destroy [2021-12-18 07:00:29,797 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_guest_endpoint_destroy [2021-12-18 07:00:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 07:00:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure dg_dispatch_as_guest [2021-12-18 07:00:29,797 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_dispatch_as_guest [2021-12-18 07:00:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-18 07:00:29,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-18 07:00:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-18 07:00:29,798 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-18 07:00:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-18 07:00:29,798 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-18 07:00:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_event_dispatch [2021-12-18 07:00:29,798 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_event_dispatch [2021-12-18 07:00:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure qp_release_queue_mutex [2021-12-18 07:00:29,798 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_release_queue_mutex [2021-12-18 07:00:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-18 07:00:29,799 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-18 07:00:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_route [2021-12-18 07:00:29,799 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_route [2021-12-18 07:00:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure get_user_pages_fast [2021-12-18 07:00:29,799 INFO L138 BoogieDeclarations]: Found implementation of procedure get_user_pages_fast [2021-12-18 07:00:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure qp_free_queue [2021-12-18 07:00:29,799 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_free_queue [2021-12-18 07:00:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_free_queue [2021-12-18 07:00:29,800 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_free_queue [2021-12-18 07:00:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-18 07:00:29,800 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-18 07:00:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure atomic64_set [2021-12-18 07:00:29,800 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic64_set [2021-12-18 07:00:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_get_priv_flags [2021-12-18 07:00:29,800 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_get_priv_flags [2021-12-18 07:00:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_qp_exists [2021-12-18 07:00:29,800 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_qp_exists [2021-12-18 07:00:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu [2021-12-18 07:00:29,801 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu [2021-12-18 07:00:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_remove [2021-12-18 07:00:29,801 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_remove [2021-12-18 07:00:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 07:00:29,801 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 07:00:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure qp_init_queue_mutex [2021-12-18 07:00:29,802 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_init_queue_mutex [2021-12-18 07:00:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 07:00:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_context_get_priv_flags [2021-12-18 07:00:29,802 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_context_get_priv_flags [2021-12-18 07:00:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_2 [2021-12-18 07:00:29,802 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_2 [2021-12-18 07:00:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-18 07:00:29,803 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-18 07:00:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 07:00:29,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 07:00:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure put_cred [2021-12-18 07:00:29,803 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cred [2021-12-18 07:00:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work___0 [2021-12-18 07:00:29,803 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work___0 [2021-12-18 07:00:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2021-12-18 07:00:29,804 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2021-12-18 07:00:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-18 07:00:29,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-18 07:00:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qp_guest_endpoints_exit [2021-12-18 07:00:29,804 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qp_guest_endpoints_exit [2021-12-18 07:00:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_HLIST_NODE [2021-12-18 07:00:29,804 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_HLIST_NODE [2021-12-18 07:00:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-18 07:00:29,804 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-18 07:00:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-18 07:00:29,805 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-18 07:00:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_equal [2021-12-18 07:00:29,805 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_equal [2021-12-18 07:00:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_qp_destroy [2021-12-18 07:00:29,805 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_qp_destroy [2021-12-18 07:00:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure qp_guest_handle_to_entry [2021-12-18 07:00:29,805 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_guest_handle_to_entry [2021-12-18 07:00:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-12-18 07:00:29,806 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-12-18 07:00:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch [2021-12-18 07:00:29,806 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch [2021-12-18 07:00:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure handle_arr_calc_size [2021-12-18 07:00:29,806 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_arr_calc_size [2021-12-18 07:00:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2021-12-18 07:00:29,806 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2021-12-18 07:00:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_unhashed [2021-12-18 07:00:29,807 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_unhashed [2021-12-18 07:00:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qp_broker_alloc [2021-12-18 07:00:29,807 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qp_broker_alloc [2021-12-18 07:00:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-18 07:00:29,807 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-18 07:00:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure kunmap [2021-12-18 07:00:29,807 INFO L138 BoogieDeclarations]: Found implementation of procedure kunmap [2021-12-18 07:00:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-18 07:00:29,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-18 07:00:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-18 07:00:29,808 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-18 07:00:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2021-12-18 07:00:29,808 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2021-12-18 07:00:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_get [2021-12-18 07:00:29,808 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_get [2021-12-18 07:00:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_vmci_host_dev [2021-12-18 07:00:29,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_vmci_host_dev [2021-12-18 07:00:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-18 07:00:29,809 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-18 07:00:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2021-12-18 07:00:29,809 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2021-12-18 07:00:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_remove_entry [2021-12-18 07:00:29,809 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_remove_entry [2021-12-18 07:00:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_event_unsubscribe [2021-12-18 07:00:29,810 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_event_unsubscribe [2021-12-18 07:00:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_deny_interaction [2021-12-18 07:00:29,810 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_deny_interaction [2021-12-18 07:00:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_guest_remove_device [2021-12-18 07:00:29,810 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_guest_remove_device [2021-12-18 07:00:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_qp_create [2021-12-18 07:00:29,810 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_qp_create [2021-12-18 07:00:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_code_active [2021-12-18 07:00:29,811 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_code_active [2021-12-18 07:00:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 07:00:29,811 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 07:00:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-18 07:00:29,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-18 07:00:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-18 07:00:29,811 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-18 07:00:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-12-18 07:00:29,811 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-12-18 07:00:29,812 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_lookup [2021-12-18 07:00:29,812 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_lookup [2021-12-18 07:00:29,812 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2021-12-18 07:00:29,812 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2021-12-18 07:00:29,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 07:00:29,812 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_create [2021-12-18 07:00:29,812 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_create [2021-12-18 07:00:29,812 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_put [2021-12-18 07:00:29,812 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_put [2021-12-18 07:00:30,632 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 07:00:30,637 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 07:00:30,952 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 07:00:42,080 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 07:00:42,096 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 07:00:42,096 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-18 07:00:42,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:00:42 BoogieIcfgContainer [2021-12-18 07:00:42,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 07:00:42,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 07:00:42,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 07:00:42,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 07:00:42,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 07:00:23" (1/3) ... [2021-12-18 07:00:42,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bada38a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:00:42, skipping insertion in model container [2021-12-18 07:00:42,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:00:28" (2/3) ... [2021-12-18 07:00:42,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bada38a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:00:42, skipping insertion in model container [2021-12-18 07:00:42,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:00:42" (3/3) ... [2021-12-18 07:00:42,107 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--misc--vmw_vmci--vmw_vmci.ko-entry_point.cil.out.i [2021-12-18 07:00:42,114 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 07:00:42,114 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 07:00:42,164 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 07:00:42,171 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 07:00:42,172 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 07:00:42,233 INFO L276 IsEmpty]: Start isEmpty. Operand has 3381 states, 2333 states have (on average 1.3686240891555936) internal successors, (3193), 2400 states have internal predecessors, (3193), 843 states have call successors, (843), 204 states have call predecessors, (843), 203 states have return successors, (839), 833 states have call predecessors, (839), 839 states have call successors, (839) [2021-12-18 07:00:42,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-18 07:00:42,237 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:00:42,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 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 07:00:42,238 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:00:42,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:00:42,242 INFO L85 PathProgramCache]: Analyzing trace with hash -221624845, now seen corresponding path program 1 times [2021-12-18 07:00:42,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:00:42,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567482757] [2021-12-18 07:00:42,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:00:42,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:00:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:00:42,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 07:00:42,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:00:42,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567482757] [2021-12-18 07:00:42,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567482757] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:00:42,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:00:42,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 07:00:42,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886467004] [2021-12-18 07:00:42,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:00:42,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 07:00:42,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:00:42,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 07:00:42,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 07:00:42,790 INFO L87 Difference]: Start difference. First operand has 3381 states, 2333 states have (on average 1.3686240891555936) internal successors, (3193), 2400 states have internal predecessors, (3193), 843 states have call successors, (843), 204 states have call predecessors, (843), 203 states have return successors, (839), 833 states have call predecessors, (839), 839 states have call successors, (839) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-18 07:00:43,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:00:43,009 INFO L93 Difference]: Finished difference Result 6757 states and 9929 transitions. [2021-12-18 07:00:43,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 07:00:43,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-12-18 07:00:43,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:00:43,045 INFO L225 Difference]: With dead ends: 6757 [2021-12-18 07:00:43,046 INFO L226 Difference]: Without dead ends: 3373 [2021-12-18 07:00:43,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 07:00:43,068 INFO L933 BasicCegarLoop]: 4856 mSDtfsCounter, 1 mSDsluCounter, 4853 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 9709 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 07:00:43,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 9709 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 07:00:43,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3373 states. [2021-12-18 07:00:43,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3373 to 3371. [2021-12-18 07:00:43,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3371 states, 2329 states have (on average 1.3662516101331044) internal successors, (3182), 2390 states have internal predecessors, (3182), 839 states have call successors, (839), 203 states have call predecessors, (839), 202 states have return successors, (824), 818 states have call predecessors, (824), 824 states have call successors, (824) [2021-12-18 07:00:43,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3371 states to 3371 states and 4845 transitions. [2021-12-18 07:00:43,224 INFO L78 Accepts]: Start accepts. Automaton has 3371 states and 4845 transitions. Word has length 27 [2021-12-18 07:00:43,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:00:43,225 INFO L470 AbstractCegarLoop]: Abstraction has 3371 states and 4845 transitions. [2021-12-18 07:00:43,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-18 07:00:43,225 INFO L276 IsEmpty]: Start isEmpty. Operand 3371 states and 4845 transitions. [2021-12-18 07:00:43,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-18 07:00:43,227 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:00:43,227 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 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 07:00:43,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 07:00:43,227 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:00:43,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:00:43,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1647899974, now seen corresponding path program 1 times [2021-12-18 07:00:43,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:00:43,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005172248] [2021-12-18 07:00:43,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:00:43,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:00:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:00:43,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 07:00:43,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:00:43,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 07:00:43,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:00:43,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005172248] [2021-12-18 07:00:43,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005172248] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:00:43,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:00:43,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 07:00:43,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559481493] [2021-12-18 07:00:43,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:00:43,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 07:00:43,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:00:43,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 07:00:43,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 07:00:43,448 INFO L87 Difference]: Start difference. First operand 3371 states and 4845 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 07:00:48,991 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 07:00:51,093 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 07:00:55,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:00:55,496 INFO L93 Difference]: Finished difference Result 10256 states and 14831 transitions. [2021-12-18 07:00:55,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 07:00:55,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-12-18 07:00:55,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:00:55,537 INFO L225 Difference]: With dead ends: 10256 [2021-12-18 07:00:55,538 INFO L226 Difference]: Without dead ends: 6891 [2021-12-18 07:00:55,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 07:00:55,550 INFO L933 BasicCegarLoop]: 7950 mSDtfsCounter, 5331 mSDsluCounter, 7657 mSDsCounter, 0 mSdLazyCounter, 2848 mSolverCounterSat, 1672 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5916 SdHoareTripleChecker+Valid, 15607 SdHoareTripleChecker+Invalid, 4522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1672 IncrementalHoareTripleChecker+Valid, 2848 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2021-12-18 07:00:55,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5916 Valid, 15607 Invalid, 4522 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1672 Valid, 2848 Invalid, 2 Unknown, 0 Unchecked, 11.5s Time] [2021-12-18 07:00:55,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6891 states. [2021-12-18 07:00:55,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6891 to 6637. [2021-12-18 07:00:55,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6637 states, 4589 states have (on average 1.3660928306820659) internal successors, (6269), 4696 states have internal predecessors, (6269), 1643 states have call successors, (1643), 405 states have call predecessors, (1643), 404 states have return successors, (1628), 1616 states have call predecessors, (1628), 1628 states have call successors, (1628) [2021-12-18 07:00:55,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6637 states to 6637 states and 9540 transitions. [2021-12-18 07:00:55,807 INFO L78 Accepts]: Start accepts. Automaton has 6637 states and 9540 transitions. Word has length 29 [2021-12-18 07:00:55,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:00:55,807 INFO L470 AbstractCegarLoop]: Abstraction has 6637 states and 9540 transitions. [2021-12-18 07:00:55,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 07:00:55,808 INFO L276 IsEmpty]: Start isEmpty. Operand 6637 states and 9540 transitions. [2021-12-18 07:00:55,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-18 07:00:55,811 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:00:55,811 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:00:55,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 07:00:55,812 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:00:55,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:00:55,813 INFO L85 PathProgramCache]: Analyzing trace with hash -8374377, now seen corresponding path program 1 times [2021-12-18 07:00:55,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:00:55,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001410279] [2021-12-18 07:00:55,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:00:55,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:00:55,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:00:56,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 07:00:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:00:56,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 07:00:56,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:00:56,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001410279] [2021-12-18 07:00:56,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001410279] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 07:00:56,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889771541] [2021-12-18 07:00:56,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:00:56,100 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 07:00:56,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 07:00:56,102 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 07:00:56,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 07:00:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:00:57,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 4888 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 07:00:57,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 07:00:57,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-18 07:00:57,464 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 07:00:57,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889771541] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:00:57,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 07:00:57,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-12-18 07:00:57,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513694672] [2021-12-18 07:00:57,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:00:57,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 07:00:57,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:00:57,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 07:00:57,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 07:00:57,466 INFO L87 Difference]: Start difference. First operand 6637 states and 9540 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 07:00:57,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:00:57,571 INFO L93 Difference]: Finished difference Result 6639 states and 9541 transitions. [2021-12-18 07:00:57,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 07:00:57,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2021-12-18 07:00:57,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:00:57,604 INFO L225 Difference]: With dead ends: 6639 [2021-12-18 07:00:57,604 INFO L226 Difference]: Without dead ends: 6636 [2021-12-18 07:00:57,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 07:00:57,611 INFO L933 BasicCegarLoop]: 4841 mSDtfsCounter, 4812 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4812 SdHoareTripleChecker+Valid, 4841 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 07:00:57,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4812 Valid, 4841 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 07:00:57,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6636 states. [2021-12-18 07:00:57,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6636 to 6636. [2021-12-18 07:00:57,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6636 states, 4589 states have (on average 1.3658749182828502) internal successors, (6268), 4695 states have internal predecessors, (6268), 1642 states have call successors, (1642), 405 states have call predecessors, (1642), 404 states have return successors, (1628), 1616 states have call predecessors, (1628), 1628 states have call successors, (1628) [2021-12-18 07:00:57,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6636 states to 6636 states and 9538 transitions. [2021-12-18 07:00:57,861 INFO L78 Accepts]: Start accepts. Automaton has 6636 states and 9538 transitions. Word has length 33 [2021-12-18 07:00:57,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:00:57,862 INFO L470 AbstractCegarLoop]: Abstraction has 6636 states and 9538 transitions. [2021-12-18 07:00:57,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 07:00:57,862 INFO L276 IsEmpty]: Start isEmpty. Operand 6636 states and 9538 transitions. [2021-12-18 07:00:57,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-18 07:00:57,864 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:00:57,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:00:57,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-18 07:00:58,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 07:00:58,080 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:00:58,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:00:58,080 INFO L85 PathProgramCache]: Analyzing trace with hash -260968426, now seen corresponding path program 1 times [2021-12-18 07:00:58,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:00:58,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596456880] [2021-12-18 07:00:58,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:00:58,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:00:58,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:00:58,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 07:00:58,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:00:58,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 07:00:58,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:00:58,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596456880] [2021-12-18 07:00:58,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596456880] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 07:00:58,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52832484] [2021-12-18 07:00:58,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:00:58,303 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 07:00:58,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 07:00:58,304 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 07:00:58,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-18 07:00:59,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:00:59,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 4890 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 07:00:59,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 07:00:59,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-18 07:00:59,436 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 07:00:59,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [52832484] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:00:59,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 07:00:59,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-12-18 07:00:59,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931813186] [2021-12-18 07:00:59,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:00:59,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 07:00:59,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:00:59,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 07:00:59,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 07:00:59,438 INFO L87 Difference]: Start difference. First operand 6636 states and 9538 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 07:00:59,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:00:59,555 INFO L93 Difference]: Finished difference Result 6638 states and 9539 transitions. [2021-12-18 07:00:59,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 07:00:59,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2021-12-18 07:00:59,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:00:59,588 INFO L225 Difference]: With dead ends: 6638 [2021-12-18 07:00:59,589 INFO L226 Difference]: Without dead ends: 6635 [2021-12-18 07:00:59,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 07:00:59,595 INFO L933 BasicCegarLoop]: 4839 mSDtfsCounter, 4809 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4809 SdHoareTripleChecker+Valid, 4839 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 07:00:59,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4809 Valid, 4839 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 07:00:59,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6635 states. [2021-12-18 07:00:59,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6635 to 6635. [2021-12-18 07:00:59,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6635 states, 4589 states have (on average 1.3656570058836348) internal successors, (6267), 4694 states have internal predecessors, (6267), 1641 states have call successors, (1641), 405 states have call predecessors, (1641), 404 states have return successors, (1628), 1616 states have call predecessors, (1628), 1628 states have call successors, (1628) [2021-12-18 07:00:59,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6635 states to 6635 states and 9536 transitions. [2021-12-18 07:00:59,883 INFO L78 Accepts]: Start accepts. Automaton has 6635 states and 9536 transitions. Word has length 34 [2021-12-18 07:00:59,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:00:59,884 INFO L470 AbstractCegarLoop]: Abstraction has 6635 states and 9536 transitions. [2021-12-18 07:00:59,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 07:00:59,885 INFO L276 IsEmpty]: Start isEmpty. Operand 6635 states and 9536 transitions. [2021-12-18 07:00:59,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-18 07:00:59,885 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:00:59,886 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:00:59,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-18 07:01:00,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-12-18 07:01:00,096 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:01:00,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:01:00,096 INFO L85 PathProgramCache]: Analyzing trace with hash 498555514, now seen corresponding path program 1 times [2021-12-18 07:01:00,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:01:00,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85969952] [2021-12-18 07:01:00,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:01:00,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:01:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:00,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 07:01:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:00,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 07:01:00,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:01:00,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85969952] [2021-12-18 07:01:00,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85969952] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 07:01:00,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368834235] [2021-12-18 07:01:00,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:01:00,305 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 07:01:00,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 07:01:00,306 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 07:01:00,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-18 07:01:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:01,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 4892 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 07:01:01,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 07:01:01,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-18 07:01:01,482 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 07:01:01,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368834235] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:01:01,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 07:01:01,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-12-18 07:01:01,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394610595] [2021-12-18 07:01:01,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:01:01,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 07:01:01,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:01:01,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 07:01:01,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 07:01:01,484 INFO L87 Difference]: Start difference. First operand 6635 states and 9536 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 07:01:01,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:01:01,677 INFO L93 Difference]: Finished difference Result 10444 states and 14724 transitions. [2021-12-18 07:01:01,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 07:01:01,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2021-12-18 07:01:01,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:01:01,738 INFO L225 Difference]: With dead ends: 10444 [2021-12-18 07:01:01,738 INFO L226 Difference]: Without dead ends: 10440 [2021-12-18 07:01:01,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 07:01:01,749 INFO L933 BasicCegarLoop]: 5316 mSDtfsCounter, 4728 mSDsluCounter, 2719 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4728 SdHoareTripleChecker+Valid, 8035 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 07:01:01,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4728 Valid, 8035 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 07:01:01,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10440 states. [2021-12-18 07:01:02,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10440 to 10432. [2021-12-18 07:01:02,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10432 states, 7162 states have (on average 1.349064507120916) internal successors, (9662), 7337 states have internal predecessors, (9662), 2530 states have call successors, (2530), 740 states have call predecessors, (2530), 739 states have return successors, (2519), 2495 states have call predecessors, (2519), 2519 states have call successors, (2519) [2021-12-18 07:01:02,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10432 states to 10432 states and 14711 transitions. [2021-12-18 07:01:02,130 INFO L78 Accepts]: Start accepts. Automaton has 10432 states and 14711 transitions. Word has length 35 [2021-12-18 07:01:02,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:01:02,132 INFO L470 AbstractCegarLoop]: Abstraction has 10432 states and 14711 transitions. [2021-12-18 07:01:02,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 07:01:02,132 INFO L276 IsEmpty]: Start isEmpty. Operand 10432 states and 14711 transitions. [2021-12-18 07:01:02,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-18 07:01:02,133 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:01:02,133 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:01:02,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-18 07:01:02,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 07:01:02,360 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:01:02,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:01:02,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1726001255, now seen corresponding path program 1 times [2021-12-18 07:01:02,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:01:02,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758099410] [2021-12-18 07:01:02,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:01:02,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:01:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:02,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 07:01:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:02,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 07:01:02,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:01:02,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758099410] [2021-12-18 07:01:02,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758099410] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 07:01:02,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394608233] [2021-12-18 07:01:02,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:01:02,558 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 07:01:02,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 07:01:02,560 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 07:01:02,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-18 07:01:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:03,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 4894 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 07:01:03,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 07:01:03,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-18 07:01:03,759 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 07:01:03,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394608233] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:01:03,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 07:01:03,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-12-18 07:01:03,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629922033] [2021-12-18 07:01:03,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:01:03,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 07:01:03,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:01:03,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 07:01:03,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 07:01:03,761 INFO L87 Difference]: Start difference. First operand 10432 states and 14711 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 07:01:03,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:01:03,922 INFO L93 Difference]: Finished difference Result 10434 states and 14712 transitions. [2021-12-18 07:01:03,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 07:01:03,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2021-12-18 07:01:03,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:01:03,964 INFO L225 Difference]: With dead ends: 10434 [2021-12-18 07:01:03,964 INFO L226 Difference]: Without dead ends: 10431 [2021-12-18 07:01:03,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 07:01:03,976 INFO L933 BasicCegarLoop]: 4833 mSDtfsCounter, 4801 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4801 SdHoareTripleChecker+Valid, 4833 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 07:01:03,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4801 Valid, 4833 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 07:01:03,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10431 states. [2021-12-18 07:01:04,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10431 to 10431. [2021-12-18 07:01:04,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10431 states, 7162 states have (on average 1.3489248813180676) internal successors, (9661), 7336 states have internal predecessors, (9661), 2529 states have call successors, (2529), 740 states have call predecessors, (2529), 739 states have return successors, (2519), 2495 states have call predecessors, (2519), 2519 states have call successors, (2519) [2021-12-18 07:01:04,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10431 states to 10431 states and 14709 transitions. [2021-12-18 07:01:04,343 INFO L78 Accepts]: Start accepts. Automaton has 10431 states and 14709 transitions. Word has length 36 [2021-12-18 07:01:04,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:01:04,343 INFO L470 AbstractCegarLoop]: Abstraction has 10431 states and 14709 transitions. [2021-12-18 07:01:04,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 07:01:04,343 INFO L276 IsEmpty]: Start isEmpty. Operand 10431 states and 14709 transitions. [2021-12-18 07:01:04,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-12-18 07:01:04,344 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:01:04,344 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:01:04,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-18 07:01:04,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 07:01:04,551 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:01:04,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:01:04,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1967779491, now seen corresponding path program 1 times [2021-12-18 07:01:04,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:01:04,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624488935] [2021-12-18 07:01:04,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:01:04,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:01:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:04,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 07:01:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:04,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 07:01:04,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:01:04,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624488935] [2021-12-18 07:01:04,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624488935] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 07:01:04,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341640952] [2021-12-18 07:01:04,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:01:04,738 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 07:01:04,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 07:01:04,740 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 07:01:04,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-18 07:01:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:05,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 4896 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 07:01:05,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 07:01:05,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-18 07:01:05,854 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 07:01:05,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341640952] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:01:05,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 07:01:05,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-12-18 07:01:05,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141919990] [2021-12-18 07:01:05,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:01:05,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 07:01:05,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:01:05,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 07:01:05,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 07:01:05,855 INFO L87 Difference]: Start difference. First operand 10431 states and 14709 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 07:01:06,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:01:06,362 INFO L93 Difference]: Finished difference Result 27282 states and 38819 transitions. [2021-12-18 07:01:06,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 07:01:06,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2021-12-18 07:01:06,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:01:06,427 INFO L225 Difference]: With dead ends: 27282 [2021-12-18 07:01:06,428 INFO L226 Difference]: Without dead ends: 16857 [2021-12-18 07:01:06,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 07:01:06,473 INFO L933 BasicCegarLoop]: 5599 mSDtfsCounter, 4094 mSDsluCounter, 3015 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4094 SdHoareTripleChecker+Valid, 8614 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 07:01:06,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4094 Valid, 8614 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 07:01:06,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16857 states. [2021-12-18 07:01:06,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16857 to 16814. [2021-12-18 07:01:07,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16814 states, 11541 states have (on average 1.3417381509401265) internal successors, (15485), 11825 states have internal predecessors, (15485), 3966 states have call successors, (3966), 1300 states have call predecessors, (3966), 1306 states have return successors, (4152), 3925 states have call predecessors, (4152), 3952 states have call successors, (4152) [2021-12-18 07:01:07,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16814 states to 16814 states and 23603 transitions. [2021-12-18 07:01:07,080 INFO L78 Accepts]: Start accepts. Automaton has 16814 states and 23603 transitions. Word has length 37 [2021-12-18 07:01:07,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:01:07,081 INFO L470 AbstractCegarLoop]: Abstraction has 16814 states and 23603 transitions. [2021-12-18 07:01:07,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 07:01:07,081 INFO L276 IsEmpty]: Start isEmpty. Operand 16814 states and 23603 transitions. [2021-12-18 07:01:07,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-18 07:01:07,083 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:01:07,083 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:01:07,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-18 07:01:07,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 07:01:07,299 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:01:07,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:01:07,300 INFO L85 PathProgramCache]: Analyzing trace with hash -872965348, now seen corresponding path program 1 times [2021-12-18 07:01:07,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:01:07,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393664379] [2021-12-18 07:01:07,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:01:07,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:01:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:07,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 07:01:07,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:07,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 07:01:07,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:01:07,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393664379] [2021-12-18 07:01:07,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393664379] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 07:01:07,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960815345] [2021-12-18 07:01:07,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:01:07,479 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 07:01:07,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 07:01:07,480 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 07:01:07,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-18 07:01:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:08,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 4898 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 07:01:08,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 07:01:08,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-18 07:01:08,802 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 07:01:08,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960815345] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:01:08,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 07:01:08,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-12-18 07:01:08,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360420652] [2021-12-18 07:01:08,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:01:08,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 07:01:08,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:01:08,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 07:01:08,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 07:01:08,803 INFO L87 Difference]: Start difference. First operand 16814 states and 23603 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 07:01:09,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:01:09,612 INFO L93 Difference]: Finished difference Result 50386 states and 72507 transitions. [2021-12-18 07:01:09,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 07:01:09,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2021-12-18 07:01:09,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:01:09,785 INFO L225 Difference]: With dead ends: 50386 [2021-12-18 07:01:09,786 INFO L226 Difference]: Without dead ends: 33578 [2021-12-18 07:01:09,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 07:01:09,861 INFO L933 BasicCegarLoop]: 5945 mSDtfsCounter, 4869 mSDsluCounter, 4896 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4869 SdHoareTripleChecker+Valid, 10841 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 07:01:09,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4869 Valid, 10841 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 07:01:09,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33578 states. [2021-12-18 07:01:10,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33578 to 33539. [2021-12-18 07:01:10,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33539 states, 23027 states have (on average 1.3420766925782777) internal successors, (30904), 23588 states have internal predecessors, (30904), 7907 states have call successors, (7907), 2595 states have call predecessors, (7907), 2604 states have return successors, (9180), 7829 states have call predecessors, (9180), 7892 states have call successors, (9180) [2021-12-18 07:01:11,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33539 states to 33539 states and 47991 transitions. [2021-12-18 07:01:11,069 INFO L78 Accepts]: Start accepts. Automaton has 33539 states and 47991 transitions. Word has length 38 [2021-12-18 07:01:11,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:01:11,070 INFO L470 AbstractCegarLoop]: Abstraction has 33539 states and 47991 transitions. [2021-12-18 07:01:11,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 07:01:11,070 INFO L276 IsEmpty]: Start isEmpty. Operand 33539 states and 47991 transitions. [2021-12-18 07:01:11,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-18 07:01:11,071 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:01:11,071 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:01:11,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-18 07:01:11,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 07:01:11,298 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:01:11,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:01:11,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1293460416, now seen corresponding path program 1 times [2021-12-18 07:01:11,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:01:11,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891544559] [2021-12-18 07:01:11,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:01:11,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:01:11,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:11,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 07:01:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:11,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 07:01:11,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:01:11,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891544559] [2021-12-18 07:01:11,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891544559] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 07:01:11,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581938774] [2021-12-18 07:01:11,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:01:11,658 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 07:01:11,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 07:01:11,659 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 07:01:11,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-18 07:01:12,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:12,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 4900 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 07:01:12,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 07:01:12,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-18 07:01:12,815 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 07:01:12,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581938774] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:01:12,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 07:01:12,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-12-18 07:01:12,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464908387] [2021-12-18 07:01:12,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:01:12,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 07:01:12,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:01:12,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 07:01:12,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 07:01:12,817 INFO L87 Difference]: Start difference. First operand 33539 states and 47991 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 07:01:13,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:01:13,448 INFO L93 Difference]: Finished difference Result 33667 states and 48081 transitions. [2021-12-18 07:01:13,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 07:01:13,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2021-12-18 07:01:13,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:01:13,610 INFO L225 Difference]: With dead ends: 33667 [2021-12-18 07:01:13,610 INFO L226 Difference]: Without dead ends: 33635 [2021-12-18 07:01:13,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 07:01:13,631 INFO L933 BasicCegarLoop]: 4827 mSDtfsCounter, 4742 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4742 SdHoareTripleChecker+Valid, 4881 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 07:01:13,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4742 Valid, 4881 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 07:01:13,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33635 states. [2021-12-18 07:01:14,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33635 to 33633. [2021-12-18 07:01:14,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33633 states, 23093 states have (on average 1.3401463646992595) internal successors, (30948), 23653 states have internal predecessors, (30948), 7900 states have call successors, (7900), 2630 states have call predecessors, (7900), 2639 states have return successors, (9174), 7823 states have call predecessors, (9174), 7886 states have call successors, (9174) [2021-12-18 07:01:14,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33633 states to 33633 states and 48022 transitions. [2021-12-18 07:01:14,908 INFO L78 Accepts]: Start accepts. Automaton has 33633 states and 48022 transitions. Word has length 39 [2021-12-18 07:01:14,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:01:14,909 INFO L470 AbstractCegarLoop]: Abstraction has 33633 states and 48022 transitions. [2021-12-18 07:01:14,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 07:01:14,909 INFO L276 IsEmpty]: Start isEmpty. Operand 33633 states and 48022 transitions. [2021-12-18 07:01:14,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-18 07:01:14,911 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:01:14,911 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:01:14,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-18 07:01:15,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 07:01:15,127 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:01:15,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:01:15,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1815788574, now seen corresponding path program 1 times [2021-12-18 07:01:15,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:01:15,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198063607] [2021-12-18 07:01:15,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:01:15,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:01:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:15,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 07:01:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:15,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:01:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:15,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:01:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:15,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:01:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:15,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 07:01:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:15,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 07:01:15,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:15,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 07:01:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:15,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 07:01:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:15,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 07:01:15,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:01:15,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198063607] [2021-12-18 07:01:15,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198063607] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:01:15,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:01:15,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 07:01:15,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910973678] [2021-12-18 07:01:15,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:01:15,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 07:01:15,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:01:15,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 07:01:15,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 07:01:15,378 INFO L87 Difference]: Start difference. First operand 33633 states and 48022 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-18 07:01:20,276 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 07:01:35,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:01:45,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:01:45,962 INFO L93 Difference]: Finished difference Result 113655 states and 166762 transitions. [2021-12-18 07:01:45,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 07:01:45,963 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2021-12-18 07:01:45,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:01:46,413 INFO L225 Difference]: With dead ends: 113655 [2021-12-18 07:01:46,413 INFO L226 Difference]: Without dead ends: 80028 [2021-12-18 07:01:46,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-12-18 07:01:46,791 INFO L933 BasicCegarLoop]: 4689 mSDtfsCounter, 11881 mSDsluCounter, 6715 mSDsCounter, 0 mSdLazyCounter, 10654 mSolverCounterSat, 7547 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12628 SdHoareTripleChecker+Valid, 11404 SdHoareTripleChecker+Invalid, 18202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7547 IncrementalHoareTripleChecker+Valid, 10654 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.8s IncrementalHoareTripleChecker+Time [2021-12-18 07:01:46,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12628 Valid, 11404 Invalid, 18202 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7547 Valid, 10654 Invalid, 1 Unknown, 0 Unchecked, 27.8s Time] [2021-12-18 07:01:46,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80028 states. [2021-12-18 07:01:49,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80028 to 72706. [2021-12-18 07:01:49,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72706 states, 49864 states have (on average 1.3357933579335792) internal successors, (66608), 50940 states have internal predecessors, (66608), 17123 states have call successors, (17123), 5257 states have call predecessors, (17123), 5718 states have return successors, (21132), 17520 states have call predecessors, (21132), 17108 states have call successors, (21132) [2021-12-18 07:01:49,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72706 states to 72706 states and 104863 transitions. [2021-12-18 07:01:49,936 INFO L78 Accepts]: Start accepts. Automaton has 72706 states and 104863 transitions. Word has length 70 [2021-12-18 07:01:49,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:01:49,937 INFO L470 AbstractCegarLoop]: Abstraction has 72706 states and 104863 transitions. [2021-12-18 07:01:49,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-18 07:01:49,937 INFO L276 IsEmpty]: Start isEmpty. Operand 72706 states and 104863 transitions. [2021-12-18 07:01:49,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-18 07:01:49,942 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:01:49,942 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:01:49,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 07:01:49,943 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:01:49,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:01:49,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1788720308, now seen corresponding path program 1 times [2021-12-18 07:01:49,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:01:49,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982109366] [2021-12-18 07:01:49,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:01:49,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:01:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:50,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 07:01:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:50,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:01:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:50,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:01:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:50,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 07:01:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:50,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:01:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:50,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 07:01:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:50,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:01:50,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:50,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 07:01:50,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:50,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:01:50,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:50,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 07:01:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:50,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:01:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:50,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 07:01:50,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:50,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:01:50,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:50,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 07:01:50,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:50,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 07:01:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:50,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 07:01:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:50,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-18 07:01:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:01:50,393 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-18 07:01:50,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:01:50,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982109366] [2021-12-18 07:01:50,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982109366] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:01:50,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:01:50,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 07:01:50,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598716400] [2021-12-18 07:01:50,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:01:50,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 07:01:50,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:01:50,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 07:01:50,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-18 07:01:50,396 INFO L87 Difference]: Start difference. First operand 72706 states and 104863 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 07:01:57,033 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 07:01:59,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:02:14,968 WARN L534 Checker$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 07:02:20,340 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:02:21,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:02:24,683 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 07:02:32,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:02:32,788 INFO L93 Difference]: Finished difference Result 177924 states and 260235 transitions. [2021-12-18 07:02:32,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 07:02:32,788 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2021-12-18 07:02:32,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:02:33,475 INFO L225 Difference]: With dead ends: 177924 [2021-12-18 07:02:33,475 INFO L226 Difference]: Without dead ends: 105224 [2021-12-18 07:02:33,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-12-18 07:02:33,721 INFO L933 BasicCegarLoop]: 3928 mSDtfsCounter, 10362 mSDsluCounter, 3802 mSDsCounter, 0 mSdLazyCounter, 13563 mSolverCounterSat, 7047 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11042 SdHoareTripleChecker+Valid, 7730 SdHoareTripleChecker+Invalid, 20614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7047 IncrementalHoareTripleChecker+Valid, 13563 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.8s IncrementalHoareTripleChecker+Time [2021-12-18 07:02:33,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11042 Valid, 7730 Invalid, 20614 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7047 Valid, 13563 Invalid, 4 Unknown, 0 Unchecked, 38.8s Time] [2021-12-18 07:02:33,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105224 states. [2021-12-18 07:02:37,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105224 to 95518. [2021-12-18 07:02:37,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95518 states, 65397 states have (on average 1.332186491735095) internal successors, (87121), 66871 states have internal predecessors, (87121), 22346 states have call successors, (22346), 7154 states have call predecessors, (22346), 7774 states have return successors, (27627), 22846 states have call predecessors, (27627), 22331 states have call successors, (27627) [2021-12-18 07:02:37,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95518 states to 95518 states and 137094 transitions. [2021-12-18 07:02:37,873 INFO L78 Accepts]: Start accepts. Automaton has 95518 states and 137094 transitions. Word has length 119 [2021-12-18 07:02:37,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:02:37,873 INFO L470 AbstractCegarLoop]: Abstraction has 95518 states and 137094 transitions. [2021-12-18 07:02:37,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 07:02:37,873 INFO L276 IsEmpty]: Start isEmpty. Operand 95518 states and 137094 transitions. [2021-12-18 07:02:37,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-18 07:02:37,877 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:02:37,877 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:02:37,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 07:02:37,877 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:02:37,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:02:37,879 INFO L85 PathProgramCache]: Analyzing trace with hash 605991507, now seen corresponding path program 1 times [2021-12-18 07:02:37,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:02:37,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763414070] [2021-12-18 07:02:37,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:02:37,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:02:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:38,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 07:02:38,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:38,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 07:02:38,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:38,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:02:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:38,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:02:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:38,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 07:02:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:38,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:02:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:38,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:02:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:38,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:02:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:38,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 07:02:38,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:38,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 07:02:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:38,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-18 07:02:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:38,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-18 07:02:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:38,297 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-18 07:02:38,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:02:38,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763414070] [2021-12-18 07:02:38,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763414070] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 07:02:38,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475636189] [2021-12-18 07:02:38,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:02:38,298 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 07:02:38,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 07:02:38,299 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 07:02:38,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-18 07:02:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:39,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 5698 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 07:02:39,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 07:02:39,696 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 07:02:39,696 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 07:02:39,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475636189] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:02:39,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 07:02:39,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2021-12-18 07:02:39,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946646644] [2021-12-18 07:02:39,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:02:39,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 07:02:39,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:02:39,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 07:02:39,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-18 07:02:39,697 INFO L87 Difference]: Start difference. First operand 95518 states and 137094 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-18 07:02:44,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:02:44,405 INFO L93 Difference]: Finished difference Result 236068 states and 338751 transitions. [2021-12-18 07:02:44,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 07:02:44,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 118 [2021-12-18 07:02:44,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:02:45,286 INFO L225 Difference]: With dead ends: 236068 [2021-12-18 07:02:45,286 INFO L226 Difference]: Without dead ends: 140556 [2021-12-18 07:02:45,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-18 07:02:45,621 INFO L933 BasicCegarLoop]: 6166 mSDtfsCounter, 4781 mSDsluCounter, 4788 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4781 SdHoareTripleChecker+Valid, 10954 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 07:02:45,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4781 Valid, 10954 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 07:02:45,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140556 states. [2021-12-18 07:02:50,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140556 to 140507. [2021-12-18 07:02:50,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140507 states, 96243 states have (on average 1.332283906362021) internal successors, (128223), 98404 states have internal predecessors, (128223), 32829 states have call successors, (32829), 10529 states have call predecessors, (32829), 11434 states have return successors, (40545), 33563 states have call predecessors, (40545), 32813 states have call successors, (40545) [2021-12-18 07:02:51,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140507 states to 140507 states and 201597 transitions. [2021-12-18 07:02:51,596 INFO L78 Accepts]: Start accepts. Automaton has 140507 states and 201597 transitions. Word has length 118 [2021-12-18 07:02:51,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:02:51,597 INFO L470 AbstractCegarLoop]: Abstraction has 140507 states and 201597 transitions. [2021-12-18 07:02:51,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-18 07:02:51,597 INFO L276 IsEmpty]: Start isEmpty. Operand 140507 states and 201597 transitions. [2021-12-18 07:02:51,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-18 07:02:51,601 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:02:51,601 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:02:51,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-18 07:02:51,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-18 07:02:51,804 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:02:51,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:02:51,804 INFO L85 PathProgramCache]: Analyzing trace with hash -960633533, now seen corresponding path program 1 times [2021-12-18 07:02:51,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:02:51,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536669516] [2021-12-18 07:02:51,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:02:51,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:02:51,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:52,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 07:02:52,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:52,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 07:02:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:52,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:02:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:52,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:02:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:52,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 07:02:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:52,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 07:02:52,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:52,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 07:02:52,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:52,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:02:52,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:52,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:02:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:52,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:02:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:52,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 07:02:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:52,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 07:02:52,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:52,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 07:02:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:52,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 07:02:52,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:52,266 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-18 07:02:52,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:02:52,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536669516] [2021-12-18 07:02:52,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536669516] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 07:02:52,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999281056] [2021-12-18 07:02:52,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:02:52,268 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 07:02:52,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 07:02:52,269 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 07:02:52,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-18 07:02:53,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:02:53,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 5910 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 07:02:53,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 07:02:54,077 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-18 07:02:54,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 07:02:54,311 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-18 07:02:54,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999281056] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 07:02:54,311 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 07:02:54,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2021-12-18 07:02:54,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558989515] [2021-12-18 07:02:54,311 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 07:02:54,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 07:02:54,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:02:54,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 07:02:54,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-18 07:02:54,312 INFO L87 Difference]: Start difference. First operand 140507 states and 201597 transitions. Second operand has 10 states, 10 states have (on average 14.3) internal successors, (143), 7 states have internal predecessors, (143), 5 states have call successors, (37), 5 states have call predecessors, (37), 2 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2021-12-18 07:02:57,790 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 07:03:00,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:03:13,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:03:23,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:03:25,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:03:34,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:03:34,764 INFO L93 Difference]: Finished difference Result 296250 states and 431212 transitions. [2021-12-18 07:03:34,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 07:03:34,764 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.3) internal successors, (143), 7 states have internal predecessors, (143), 5 states have call successors, (37), 5 states have call predecessors, (37), 2 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) Word has length 122 [2021-12-18 07:03:34,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:03:35,516 INFO L225 Difference]: With dead ends: 296250 [2021-12-18 07:03:35,517 INFO L226 Difference]: Without dead ends: 155749 [2021-12-18 07:03:36,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-12-18 07:03:36,084 INFO L933 BasicCegarLoop]: 4090 mSDtfsCounter, 4805 mSDsluCounter, 13796 mSDsCounter, 0 mSdLazyCounter, 13174 mSolverCounterSat, 3862 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5321 SdHoareTripleChecker+Valid, 17886 SdHoareTripleChecker+Invalid, 17037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3862 IncrementalHoareTripleChecker+Valid, 13174 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.4s IncrementalHoareTripleChecker+Time [2021-12-18 07:03:36,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5321 Valid, 17886 Invalid, 17037 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3862 Valid, 13174 Invalid, 1 Unknown, 0 Unchecked, 32.4s Time] [2021-12-18 07:03:36,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155749 states.