./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 f4b24e32 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-?-f4b24e3 [2022-07-14 01:24:45,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 01:24:45,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 01:24:45,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 01:24:45,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 01:24:45,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 01:24:45,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 01:24:45,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 01:24:45,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 01:24:45,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 01:24:45,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 01:24:45,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 01:24:45,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 01:24:45,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 01:24:45,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 01:24:45,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 01:24:45,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 01:24:45,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 01:24:45,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 01:24:45,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 01:24:45,252 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 01:24:45,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 01:24:45,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 01:24:45,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 01:24:45,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 01:24:45,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 01:24:45,262 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 01:24:45,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 01:24:45,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 01:24:45,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 01:24:45,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 01:24:45,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 01:24:45,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 01:24:45,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 01:24:45,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 01:24:45,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 01:24:45,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 01:24:45,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 01:24:45,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 01:24:45,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 01:24:45,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 01:24:45,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 01:24:45,275 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 01:24:45,308 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 01:24:45,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 01:24:45,309 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 01:24:45,309 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 01:24:45,310 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 01:24:45,310 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 01:24:45,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 01:24:45,311 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 01:24:45,311 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 01:24:45,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 01:24:45,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 01:24:45,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 01:24:45,312 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 01:24:45,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 01:24:45,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 01:24:45,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 01:24:45,313 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 01:24:45,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 01:24:45,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 01:24:45,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 01:24:45,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 01:24:45,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:24:45,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 01:24:45,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 01:24:45,314 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 01:24:45,315 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 01:24:45,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 01:24:45,315 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 01:24:45,315 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 01:24:45,315 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 01:24:45,316 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d123e3c2a314a098b4e7a140b822a7b44f2ae282ca90c74ec5605a44f397143 [2022-07-14 01:24:45,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 01:24:45,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 01:24:45,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 01:24:45,591 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 01:24:45,591 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 01:24:45,592 INFO L432 ainManager$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 [2022-07-14 01:24:45,641 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/885e49cbd/dd8725249dd2493f84175d2224e6b273/FLAG35425bb75 [2022-07-14 01:24:46,523 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 01:24:46,524 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 [2022-07-14 01:24:46,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/885e49cbd/dd8725249dd2493f84175d2224e6b273/FLAG35425bb75 [2022-07-14 01:24:46,948 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/885e49cbd/dd8725249dd2493f84175d2224e6b273 [2022-07-14 01:24:46,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 01:24:46,951 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 01:24:46,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 01:24:46,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 01:24:46,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 01:24:46,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:24:46" (1/1) ... [2022-07-14 01:24:46,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@796a90ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:46, skipping insertion in model container [2022-07-14 01:24:46,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:24:46" (1/1) ... [2022-07-14 01:24:46,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 01:24:47,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 01:24:50,972 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] [2022-07-14 01:24:51,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:24:51,424 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 01:24:51,845 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] [2022-07-14 01:24:51,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:24:52,135 INFO L208 MainTranslator]: Completed translation [2022-07-14 01:24:52,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:52 WrapperNode [2022-07-14 01:24:52,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 01:24:52,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 01:24:52,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 01:24:52,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 01:24:52,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:52" (1/1) ... [2022-07-14 01:24:52,328 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:52" (1/1) ... [2022-07-14 01:24:52,567 INFO L137 Inliner]: procedures = 713, calls = 6159, calls flagged for inlining = 240, calls inlined = 191, statements flattened = 9072 [2022-07-14 01:24:52,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 01:24:52,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 01:24:52,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 01:24:52,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 01:24:52,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:52" (1/1) ... [2022-07-14 01:24:52,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:52" (1/1) ... [2022-07-14 01:24:52,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:52" (1/1) ... [2022-07-14 01:24:52,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:52" (1/1) ... [2022-07-14 01:24:52,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:52" (1/1) ... [2022-07-14 01:24:52,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:52" (1/1) ... [2022-07-14 01:24:53,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:52" (1/1) ... [2022-07-14 01:24:53,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 01:24:53,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 01:24:53,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 01:24:53,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 01:24:53,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:52" (1/1) ... [2022-07-14 01:24:53,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:24:53,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:24:53,160 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 01:24:53,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 01:24:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-14 01:24:53,193 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-14 01:24:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_msix_exact [2022-07-14 01:24:53,194 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_msix_exact [2022-07-14 01:24:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_signal_notify [2022-07-14 01:24:53,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_signal_notify [2022-07-14 01:24:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_send [2022-07-14 01:24:53,194 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_send [2022-07-14 01:24:53,195 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_exists [2022-07-14 01:24:53,195 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_exists [2022-07-14 01:24:53,195 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_guest_code_active [2022-07-14 01:24:53,195 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_guest_code_active [2022-07-14 01:24:53,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_subscriber_mutex [2022-07-14 01:24:53,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_subscriber_mutex [2022-07-14 01:24:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_put [2022-07-14 01:24:53,196 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_put [2022-07-14 01:24:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 01:24:53,196 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 01:24:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_open [2022-07-14 01:24:53,196 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_open [2022-07-14 01:24:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_unregister_user_memory [2022-07-14 01:24:53,197 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_unregister_user_memory [2022-07-14 01:24:53,197 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_add_notification [2022-07-14 01:24:53,197 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_add_notification [2022-07-14 01:24:53,197 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_unlocked_ioctl [2022-07-14 01:24:53,197 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_unlocked_ioctl [2022-07-14 01:24:53,197 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-14 01:24:53,198 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-14 01:24:53,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 01:24:53,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 01:24:53,198 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_get_id [2022-07-14 01:24:53,198 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_get_id [2022-07-14 01:24:53,198 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-14 01:24:53,199 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-14 01:24:53,199 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_has_entry [2022-07-14 01:24:53,199 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_has_entry [2022-07-14 01:24:53,199 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_destroy [2022-07-14 01:24:53,199 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_destroy [2022-07-14 01:24:53,200 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_send_datagram [2022-07-14 01:24:53,200 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_send_datagram [2022-07-14 01:24:53,200 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-07-14 01:24:53,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-07-14 01:24:53,200 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_get [2022-07-14 01:24:53,200 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_get [2022-07-14 01:24:53,201 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_get_entry [2022-07-14 01:24:53,201 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_get_entry [2022-07-14 01:24:53,201 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-07-14 01:24:53,201 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-07-14 01:24:53,201 INFO L130 BoogieDeclarations]: Found specification of procedure qp_acquire_queue_mutex [2022-07-14 01:24:53,202 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_acquire_queue_mutex [2022-07-14 01:24:53,202 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_get_context_id [2022-07-14 01:24:53,202 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_get_context_id [2022-07-14 01:24:53,202 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_map_queues [2022-07-14 01:24:53,203 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_map_queues [2022-07-14 01:24:53,203 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_add [2022-07-14 01:24:53,203 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_add [2022-07-14 01:24:53,203 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-14 01:24:53,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-14 01:24:53,204 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 01:24:53,205 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 01:24:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock___1 [2022-07-14 01:24:53,205 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock___1 [2022-07-14 01:24:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure no_printk [2022-07-14 01:24:53,205 INFO L138 BoogieDeclarations]: Found implementation of procedure no_printk [2022-07-14 01:24:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_get_head [2022-07-14 01:24:53,206 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_get_head [2022-07-14 01:24:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure dbell_delayed_dispatch [2022-07-14 01:24:53,206 INFO L138 BoogieDeclarations]: Found implementation of procedure dbell_delayed_dispatch [2022-07-14 01:24:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2022-07-14 01:24:53,206 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2022-07-14 01:24:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_vmci_host_dev [2022-07-14 01:24:53,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_vmci_host_dev [2022-07-14 01:24:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-14 01:24:53,207 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-14 01:24:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-07-14 01:24:53,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-14 01:24:53,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-14 01:24:53,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_qp_list [2022-07-14 01:24:53,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_qp_list [2022-07-14 01:24:53,208 INFO L130 BoogieDeclarations]: Found specification of procedure dg_delayed_dispatch [2022-07-14 01:24:53,208 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_delayed_dispatch [2022-07-14 01:24:53,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 01:24:53,209 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-07-14 01:24:53,209 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-07-14 01:24:53,209 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-07-14 01:24:53,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-07-14 01:24:53,209 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-14 01:24:53,209 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-14 01:24:53,210 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-14 01:24:53,210 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-14 01:24:53,210 INFO L130 BoogieDeclarations]: Found specification of procedure dg_dispatch_as_host [2022-07-14 01:24:53,210 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_dispatch_as_host [2022-07-14 01:24:53,210 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-14 01:24:53,210 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-14 01:24:53,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-14 01:24:53,211 INFO L130 BoogieDeclarations]: Found specification of procedure qp_reset_saved_headers [2022-07-14 01:24:53,211 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_reset_saved_headers [2022-07-14 01:24:53,211 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_handle [2022-07-14 01:24:53,211 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_handle [2022-07-14 01:24:53,211 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_add_entry [2022-07-14 01:24:53,211 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_add_entry [2022-07-14 01:24:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_invalid [2022-07-14 01:24:53,212 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_invalid [2022-07-14 01:24:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_dispatch [2022-07-14 01:24:53,212 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_dispatch [2022-07-14 01:24:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-14 01:24:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-07-14 01:24:53,212 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-07-14 01:24:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_vmci_queue_kern_if [2022-07-14 01:24:53,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_vmci_queue_kern_if [2022-07-14 01:24:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 01:24:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure kmap [2022-07-14 01:24:53,213 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap [2022-07-14 01:24:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_find [2022-07-14 01:24:53,214 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_find [2022-07-14 01:24:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 01:24:53,214 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 01:24:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure __validate_creds [2022-07-14 01:24:53,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __validate_creds [2022-07-14 01:24:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2022-07-14 01:24:53,214 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2022-07-14 01:24:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_clear_notify_call [2022-07-14 01:24:53,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_clear_notify_call [2022-07-14 01:24:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-07-14 01:24:53,215 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-07-14 01:24:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure qp_notify_peer [2022-07-14 01:24:53,215 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_notify_peer [2022-07-14 01:24:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-07-14 01:24:53,216 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-07-14 01:24:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-14 01:24:53,216 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-14 01:24:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_unset_notify [2022-07-14 01:24:53,216 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_unset_notify [2022-07-14 01:24:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure __hlist_del [2022-07-14 01:24:53,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __hlist_del [2022-07-14 01:24:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_event_exit [2022-07-14 01:24:53,217 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_event_exit [2022-07-14 01:24:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_destroy [2022-07-14 01:24:53,217 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_destroy [2022-07-14 01:24:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure get_cred [2022-07-14 01:24:53,218 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cred [2022-07-14 01:24:53,218 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-07-14 01:24:53,218 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-07-14 01:24:53,218 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-07-14 01:24:53,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-07-14 01:24:53,218 INFO L130 BoogieDeclarations]: Found specification of procedure qp_lock [2022-07-14 01:24:53,218 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_lock [2022-07-14 01:24:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-07-14 01:24:53,219 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-07-14 01:24:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_by_handle [2022-07-14 01:24:53,219 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_by_handle [2022-07-14 01:24:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-14 01:24:53,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-14 01:24:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure qp_notify_peer_local [2022-07-14 01:24:53,220 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_notify_peer_local [2022-07-14 01:24:53,220 INFO L130 BoogieDeclarations]: Found specification of procedure vunmap [2022-07-14 01:24:53,220 INFO L138 BoogieDeclarations]: Found implementation of procedure vunmap [2022-07-14 01:24:53,220 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_get_user_memory [2022-07-14 01:24:53,220 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_get_user_memory [2022-07-14 01:24:53,220 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_fire_notification [2022-07-14 01:24:53,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_fire_notification [2022-07-14 01:24:53,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 01:24:53,221 INFO L130 BoogieDeclarations]: Found specification of procedure qp_unlock [2022-07-14 01:24:53,221 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_unlock [2022-07-14 01:24:53,221 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_close [2022-07-14 01:24:53,221 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_close [2022-07-14 01:24:53,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 01:24:53,221 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_guest_probe_device [2022-07-14 01:24:53,222 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_guest_probe_device [2022-07-14 01:24:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_invalid___1 [2022-07-14 01:24:53,222 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_invalid___1 [2022-07-14 01:24:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_invalid___0 [2022-07-14 01:24:53,222 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_invalid___0 [2022-07-14 01:24:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_alloc_queue [2022-07-14 01:24:53,222 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_alloc_queue [2022-07-14 01:24:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 01:24:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-14 01:24:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_free_ctx [2022-07-14 01:24:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_free_ctx [2022-07-14 01:24:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 01:24:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 01:24:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_poll [2022-07-14 01:24:53,224 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_poll [2022-07-14 01:24:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-14 01:24:53,224 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-14 01:24:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-14 01:24:53,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-14 01:24:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure qp_release_pages [2022-07-14 01:24:53,224 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_release_pages [2022-07-14 01:24:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure qp_cleanup_queue_mutex [2022-07-14 01:24:53,225 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_cleanup_queue_mutex [2022-07-14 01:24:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_get_size [2022-07-14 01:24:53,225 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_get_size [2022-07-14 01:24:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch_hypercall [2022-07-14 01:24:53,225 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch_hypercall [2022-07-14 01:24:53,226 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-14 01:24:53,226 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-14 01:24:53,226 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-14 01:24:53,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-14 01:24:53,226 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_remove_entry [2022-07-14 01:24:53,226 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_remove_entry [2022-07-14 01:24:53,226 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 01:24:53,227 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 01:24:53,227 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_q_header_init [2022-07-14 01:24:53,227 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_q_header_init [2022-07-14 01:24:53,227 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add_rcu [2022-07-14 01:24:53,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add_rcu [2022-07-14 01:24:53,227 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_register_user_memory [2022-07-14 01:24:53,227 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_register_user_memory [2022-07-14 01:24:53,228 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-14 01:24:53,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-14 01:24:53,228 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch_guest_work [2022-07-14 01:24:53,228 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch_guest_work [2022-07-14 01:24:53,228 INFO L130 BoogieDeclarations]: Found specification of procedure drv_cp_harray_to_user [2022-07-14 01:24:53,228 INFO L138 BoogieDeclarations]: Found implementation of procedure drv_cp_harray_to_user [2022-07-14 01:24:53,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 01:24:53,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 01:24:53,229 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-14 01:24:53,229 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-14 01:24:53,229 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_remove_tail [2022-07-14 01:24:53,229 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_remove_tail [2022-07-14 01:24:53,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_subscriber_mutex [2022-07-14 01:24:53,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_subscriber_mutex [2022-07-14 01:24:53,230 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-07-14 01:24:53,230 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-07-14 01:24:53,230 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_supports_host_qp [2022-07-14 01:24:53,230 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_supports_host_qp [2022-07-14 01:24:53,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 01:24:53,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 01:24:53,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 01:24:53,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 01:24:53,231 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qp_broker_detach [2022-07-14 01:24:53,231 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qp_broker_detach [2022-07-14 01:24:53,231 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_enqueue_datagram [2022-07-14 01:24:53,231 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_enqueue_datagram [2022-07-14 01:24:53,231 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-07-14 01:24:53,231 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-07-14 01:24:53,232 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_unmap_queues [2022-07-14 01:24:53,232 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_unmap_queues [2022-07-14 01:24:53,232 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_rcu [2022-07-14 01:24:53,232 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_rcu [2022-07-14 01:24:53,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_qp_list [2022-07-14 01:24:53,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_qp_list [2022-07-14 01:24:53,233 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 01:24:53,233 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 01:24:53,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 01:24:53,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 01:24:53,236 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-14 01:24:53,236 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-14 01:24:53,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 01:24:53,237 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 01:24:53,238 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2022-07-14 01:24:53,238 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2022-07-14 01:24:53,238 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 01:24:53,238 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 01:24:53,238 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msix [2022-07-14 01:24:53,242 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msix [2022-07-14 01:24:53,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_vmci_queue_kern_if [2022-07-14 01:24:53,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_vmci_queue_kern_if [2022-07-14 01:24:53,243 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_notify_dbell [2022-07-14 01:24:53,244 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_notify_dbell [2022-07-14 01:24:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_append_entry [2022-07-14 01:24:53,244 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_append_entry [2022-07-14 01:24:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-07-14 01:24:53,244 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-07-14 01:24:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-14 01:24:53,244 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-14 01:24:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure qp_broker_handle_to_entry [2022-07-14 01:24:53,245 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_broker_handle_to_entry [2022-07-14 01:24:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qpair_detach [2022-07-14 01:24:53,245 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qpair_detach [2022-07-14 01:24:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-14 01:24:53,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-14 01:24:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 01:24:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-14 01:24:53,246 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-14 01:24:53,246 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_hash [2022-07-14 01:24:53,246 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_hash [2022-07-14 01:24:53,246 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_create [2022-07-14 01:24:53,246 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_create [2022-07-14 01:24:53,246 INFO L130 BoogieDeclarations]: Found specification of procedure event_find [2022-07-14 01:24:53,246 INFO L138 BoogieDeclarations]: Found implementation of procedure event_find [2022-07-14 01:24:53,247 INFO L130 BoogieDeclarations]: Found specification of procedure qp_broker_alloc [2022-07-14 01:24:53,247 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_broker_alloc [2022-07-14 01:24:53,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 01:24:53,247 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch_host_work [2022-07-14 01:24:53,247 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch_host_work [2022-07-14 01:24:53,247 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-07-14 01:24:53,247 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-07-14 01:24:53,248 INFO L130 BoogieDeclarations]: Found specification of procedure hash_32 [2022-07-14 01:24:53,248 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_32 [2022-07-14 01:24:53,248 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail_rcu [2022-07-14 01:24:53,248 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail_rcu [2022-07-14 01:24:53,248 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock___1 [2022-07-14 01:24:53,248 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock___1 [2022-07-14 01:24:53,248 INFO L130 BoogieDeclarations]: Found specification of procedure qp_guest_endpoint_destroy [2022-07-14 01:24:53,249 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_guest_endpoint_destroy [2022-07-14 01:24:53,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 01:24:53,249 INFO L130 BoogieDeclarations]: Found specification of procedure dg_dispatch_as_guest [2022-07-14 01:24:53,249 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_dispatch_as_guest [2022-07-14 01:24:53,249 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-14 01:24:53,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-14 01:24:53,249 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-14 01:24:53,249 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-14 01:24:53,250 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-14 01:24:53,250 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-14 01:24:53,250 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_event_dispatch [2022-07-14 01:24:53,250 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_event_dispatch [2022-07-14 01:24:53,250 INFO L130 BoogieDeclarations]: Found specification of procedure qp_release_queue_mutex [2022-07-14 01:24:53,250 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_release_queue_mutex [2022-07-14 01:24:53,250 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-14 01:24:53,251 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-14 01:24:53,251 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_route [2022-07-14 01:24:53,251 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_route [2022-07-14 01:24:53,251 INFO L130 BoogieDeclarations]: Found specification of procedure get_user_pages_fast [2022-07-14 01:24:53,251 INFO L138 BoogieDeclarations]: Found implementation of procedure get_user_pages_fast [2022-07-14 01:24:53,251 INFO L130 BoogieDeclarations]: Found specification of procedure qp_free_queue [2022-07-14 01:24:53,251 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_free_queue [2022-07-14 01:24:53,252 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_free_queue [2022-07-14 01:24:53,252 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_free_queue [2022-07-14 01:24:53,252 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-07-14 01:24:53,252 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-07-14 01:24:53,252 INFO L130 BoogieDeclarations]: Found specification of procedure atomic64_set [2022-07-14 01:24:53,252 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic64_set [2022-07-14 01:24:53,252 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_get_priv_flags [2022-07-14 01:24:53,252 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_get_priv_flags [2022-07-14 01:24:53,253 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_qp_exists [2022-07-14 01:24:53,253 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_qp_exists [2022-07-14 01:24:53,253 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu [2022-07-14 01:24:53,253 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu [2022-07-14 01:24:53,253 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_remove [2022-07-14 01:24:53,253 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_remove [2022-07-14 01:24:53,253 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 01:24:53,254 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 01:24:53,254 INFO L130 BoogieDeclarations]: Found specification of procedure qp_init_queue_mutex [2022-07-14 01:24:53,254 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_init_queue_mutex [2022-07-14 01:24:53,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 01:24:53,254 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_context_get_priv_flags [2022-07-14 01:24:53,254 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_context_get_priv_flags [2022-07-14 01:24:53,254 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_2 [2022-07-14 01:24:53,254 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_2 [2022-07-14 01:24:53,255 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-14 01:24:53,255 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-14 01:24:53,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 01:24:53,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 01:24:53,255 INFO L130 BoogieDeclarations]: Found specification of procedure put_cred [2022-07-14 01:24:53,255 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cred [2022-07-14 01:24:53,255 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work___0 [2022-07-14 01:24:53,256 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work___0 [2022-07-14 01:24:53,256 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-07-14 01:24:53,256 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-07-14 01:24:53,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-14 01:24:53,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-14 01:24:53,256 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qp_guest_endpoints_exit [2022-07-14 01:24:53,256 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qp_guest_endpoints_exit [2022-07-14 01:24:53,256 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_HLIST_NODE [2022-07-14 01:24:53,257 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_HLIST_NODE [2022-07-14 01:24:53,257 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-14 01:24:53,257 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-14 01:24:53,257 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-14 01:24:53,257 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-14 01:24:53,257 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_equal [2022-07-14 01:24:53,257 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_equal [2022-07-14 01:24:53,258 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_qp_destroy [2022-07-14 01:24:53,258 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_qp_destroy [2022-07-14 01:24:53,258 INFO L130 BoogieDeclarations]: Found specification of procedure qp_guest_handle_to_entry [2022-07-14 01:24:53,258 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_guest_handle_to_entry [2022-07-14 01:24:53,258 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-07-14 01:24:53,258 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-07-14 01:24:53,258 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch [2022-07-14 01:24:53,259 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch [2022-07-14 01:24:53,259 INFO L130 BoogieDeclarations]: Found specification of procedure handle_arr_calc_size [2022-07-14 01:24:53,259 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_arr_calc_size [2022-07-14 01:24:53,259 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2022-07-14 01:24:53,261 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2022-07-14 01:24:53,261 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_unhashed [2022-07-14 01:24:53,261 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_unhashed [2022-07-14 01:24:53,261 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qp_broker_alloc [2022-07-14 01:24:53,261 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qp_broker_alloc [2022-07-14 01:24:53,261 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-07-14 01:24:53,261 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-07-14 01:24:53,262 INFO L130 BoogieDeclarations]: Found specification of procedure kunmap [2022-07-14 01:24:53,262 INFO L138 BoogieDeclarations]: Found implementation of procedure kunmap [2022-07-14 01:24:53,262 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-14 01:24:53,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-14 01:24:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-14 01:24:53,263 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-14 01:24:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2022-07-14 01:24:53,263 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2022-07-14 01:24:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_get [2022-07-14 01:24:53,263 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_get [2022-07-14 01:24:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_vmci_host_dev [2022-07-14 01:24:53,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_vmci_host_dev [2022-07-14 01:24:53,264 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-14 01:24:53,264 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-14 01:24:53,264 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2022-07-14 01:24:53,264 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2022-07-14 01:24:53,264 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_remove_entry [2022-07-14 01:24:53,264 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_remove_entry [2022-07-14 01:24:53,265 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_event_unsubscribe [2022-07-14 01:24:53,265 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_event_unsubscribe [2022-07-14 01:24:53,265 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_deny_interaction [2022-07-14 01:24:53,265 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_deny_interaction [2022-07-14 01:24:53,265 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_guest_remove_device [2022-07-14 01:24:53,265 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_guest_remove_device [2022-07-14 01:24:53,265 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_qp_create [2022-07-14 01:24:53,265 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_qp_create [2022-07-14 01:24:53,266 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_code_active [2022-07-14 01:24:53,266 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_code_active [2022-07-14 01:24:53,266 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-14 01:24:53,266 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-14 01:24:53,266 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-14 01:24:53,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-14 01:24:53,266 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-07-14 01:24:53,267 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-07-14 01:24:53,267 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-14 01:24:53,267 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-14 01:24:53,267 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_lookup [2022-07-14 01:24:53,267 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_lookup [2022-07-14 01:24:53,267 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-07-14 01:24:53,267 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-07-14 01:24:53,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 01:24:53,268 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_create [2022-07-14 01:24:53,268 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_create [2022-07-14 01:24:53,268 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_put [2022-07-14 01:24:53,268 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_put [2022-07-14 01:24:54,373 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 01:24:54,378 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 01:24:54,697 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 01:25:10,424 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 01:25:10,443 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 01:25:10,443 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 01:25:10,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:25:10 BoogieIcfgContainer [2022-07-14 01:25:10,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 01:25:10,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 01:25:10,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 01:25:10,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 01:25:10,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 01:24:46" (1/3) ... [2022-07-14 01:25:10,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f17fac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:25:10, skipping insertion in model container [2022-07-14 01:25:10,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:52" (2/3) ... [2022-07-14 01:25:10,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f17fac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:25:10, skipping insertion in model container [2022-07-14 01:25:10,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:25:10" (3/3) ... [2022-07-14 01:25:10,455 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 [2022-07-14 01:25:10,467 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 01:25:10,467 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 01:25:10,565 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 01:25:10,570 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3dd06a02, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@280d4d5d [2022-07-14 01:25:10,570 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 01:25:10,581 INFO L276 IsEmpty]: Start isEmpty. Operand has 3389 states, 2341 states have (on average 1.3707817172148655) internal successors, (3209), 2408 states have internal predecessors, (3209), 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) [2022-07-14 01:25:10,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-14 01:25:10,589 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:25:10,589 INFO L195 NwaCegarLoop]: 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] [2022-07-14 01:25:10,590 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:25:10,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:25:10,594 INFO L85 PathProgramCache]: Analyzing trace with hash 289228627, now seen corresponding path program 1 times [2022-07-14 01:25:10,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:25:10,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917564815] [2022-07-14 01:25:10,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:25:10,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:25:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:11,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 01:25:11,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:25:11,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917564815] [2022-07-14 01:25:11,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917564815] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:25:11,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:25:11,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:25:11,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184342275] [2022-07-14 01:25:11,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:25:11,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:25:11,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:25:11,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:25:11,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:25:11,350 INFO L87 Difference]: Start difference. First operand has 3389 states, 2341 states have (on average 1.3707817172148655) internal successors, (3209), 2408 states have internal predecessors, (3209), 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) [2022-07-14 01:25:11,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:25:11,762 INFO L93 Difference]: Finished difference Result 6773 states and 9961 transitions. [2022-07-14 01:25:11,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:25:11,766 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 [2022-07-14 01:25:11,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:25:11,807 INFO L225 Difference]: With dead ends: 6773 [2022-07-14 01:25:11,808 INFO L226 Difference]: Without dead ends: 3381 [2022-07-14 01:25:11,835 INFO L412 NwaCegarLoop]: 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 [2022-07-14 01:25:11,839 INFO L413 NwaCegarLoop]: 4866 mSDtfsCounter, 1 mSDsluCounter, 4862 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 9728 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 01:25:11,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 9728 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 01:25:11,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3381 states. [2022-07-14 01:25:12,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3381 to 3379. [2022-07-14 01:25:12,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3379 states, 2337 states have (on average 1.3658536585365855) internal successors, (3192), 2398 states have internal predecessors, (3192), 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) [2022-07-14 01:25:12,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3379 states to 3379 states and 4855 transitions. [2022-07-14 01:25:12,077 INFO L78 Accepts]: Start accepts. Automaton has 3379 states and 4855 transitions. Word has length 27 [2022-07-14 01:25:12,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:25:12,078 INFO L495 AbstractCegarLoop]: Abstraction has 3379 states and 4855 transitions. [2022-07-14 01:25:12,078 INFO L496 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) [2022-07-14 01:25:12,079 INFO L276 IsEmpty]: Start isEmpty. Operand 3379 states and 4855 transitions. [2022-07-14 01:25:12,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-14 01:25:12,085 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:25:12,085 INFO L195 NwaCegarLoop]: 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] [2022-07-14 01:25:12,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 01:25:12,086 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:25:12,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:25:12,087 INFO L85 PathProgramCache]: Analyzing trace with hash -720615107, now seen corresponding path program 1 times [2022-07-14 01:25:12,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:25:12,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407776404] [2022-07-14 01:25:12,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:25:12,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:25:12,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:12,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:25:12,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:12,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 01:25:12,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:25:12,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407776404] [2022-07-14 01:25:12,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407776404] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:25:12,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:25:12,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 01:25:12,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338331137] [2022-07-14 01:25:12,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:25:12,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 01:25:12,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:25:12,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 01:25:12,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 01:25:12,481 INFO L87 Difference]: Start difference. First operand 3379 states and 4855 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) [2022-07-14 01:25:17,980 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 [] [2022-07-14 01:25:21,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:25:21,804 INFO L93 Difference]: Finished difference Result 10280 states and 14861 transitions. [2022-07-14 01:25:21,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 01:25:21,805 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 [2022-07-14 01:25:21,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:25:21,848 INFO L225 Difference]: With dead ends: 10280 [2022-07-14 01:25:21,849 INFO L226 Difference]: Without dead ends: 6907 [2022-07-14 01:25:21,868 INFO L412 NwaCegarLoop]: 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 [2022-07-14 01:25:21,869 INFO L413 NwaCegarLoop]: 7942 mSDtfsCounter, 5348 mSDsluCounter, 7160 mSDsCounter, 0 mSdLazyCounter, 3352 mSolverCounterSat, 1678 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5939 SdHoareTripleChecker+Valid, 15102 SdHoareTripleChecker+Invalid, 5031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1678 IncrementalHoareTripleChecker+Valid, 3352 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-07-14 01:25:21,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5939 Valid, 15102 Invalid, 5031 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1678 Valid, 3352 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2022-07-14 01:25:21,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6907 states. [2022-07-14 01:25:22,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6907 to 6653. [2022-07-14 01:25:22,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6653 states, 4605 states have (on average 1.3656894679695983) internal successors, (6289), 4712 states have internal predecessors, (6289), 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) [2022-07-14 01:25:22,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6653 states to 6653 states and 9560 transitions. [2022-07-14 01:25:22,120 INFO L78 Accepts]: Start accepts. Automaton has 6653 states and 9560 transitions. Word has length 29 [2022-07-14 01:25:22,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:25:22,120 INFO L495 AbstractCegarLoop]: Abstraction has 6653 states and 9560 transitions. [2022-07-14 01:25:22,121 INFO L496 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) [2022-07-14 01:25:22,121 INFO L276 IsEmpty]: Start isEmpty. Operand 6653 states and 9560 transitions. [2022-07-14 01:25:22,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-14 01:25:22,122 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:25:22,122 INFO L195 NwaCegarLoop]: 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] [2022-07-14 01:25:22,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 01:25:22,123 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:25:22,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:25:22,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1258315447, now seen corresponding path program 1 times [2022-07-14 01:25:22,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:25:22,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713515477] [2022-07-14 01:25:22,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:25:22,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:25:22,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:22,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:25:22,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:22,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 01:25:22,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:25:22,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713515477] [2022-07-14 01:25:22,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713515477] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 01:25:22,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969808559] [2022-07-14 01:25:22,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:25:22,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:25:22,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:25:22,451 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) [2022-07-14 01:25:22,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 01:25:24,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:24,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 4888 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 01:25:24,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:25:24,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-14 01:25:24,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:25:24,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969808559] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:25:24,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 01:25:24,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-07-14 01:25:24,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545953138] [2022-07-14 01:25:24,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:25:24,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:25:24,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:25:24,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:25:24,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:25:24,082 INFO L87 Difference]: Start difference. First operand 6653 states and 9560 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) [2022-07-14 01:25:24,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:25:24,201 INFO L93 Difference]: Finished difference Result 6655 states and 9561 transitions. [2022-07-14 01:25:24,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:25:24,202 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 [2022-07-14 01:25:24,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:25:24,237 INFO L225 Difference]: With dead ends: 6655 [2022-07-14 01:25:24,238 INFO L226 Difference]: Without dead ends: 6652 [2022-07-14 01:25:24,242 INFO L412 NwaCegarLoop]: 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 [2022-07-14 01:25:24,243 INFO L413 NwaCegarLoop]: 4851 mSDtfsCounter, 4822 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4822 SdHoareTripleChecker+Valid, 4851 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 [2022-07-14 01:25:24,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4822 Valid, 4851 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 01:25:24,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6652 states. [2022-07-14 01:25:24,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6652 to 6652. [2022-07-14 01:25:24,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6652 states, 4605 states have (on average 1.365472312703583) internal successors, (6288), 4711 states have internal predecessors, (6288), 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) [2022-07-14 01:25:24,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6652 states to 6652 states and 9558 transitions. [2022-07-14 01:25:24,485 INFO L78 Accepts]: Start accepts. Automaton has 6652 states and 9558 transitions. Word has length 33 [2022-07-14 01:25:24,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:25:24,486 INFO L495 AbstractCegarLoop]: Abstraction has 6652 states and 9558 transitions. [2022-07-14 01:25:24,487 INFO L496 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) [2022-07-14 01:25:24,487 INFO L276 IsEmpty]: Start isEmpty. Operand 6652 states and 9558 transitions. [2022-07-14 01:25:24,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-14 01:25:24,489 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:25:24,489 INFO L195 NwaCegarLoop]: 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] [2022-07-14 01:25:24,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 01:25:24,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:25:24,704 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:25:24,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:25:24,704 INFO L85 PathProgramCache]: Analyzing trace with hash 351711725, now seen corresponding path program 1 times [2022-07-14 01:25:24,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:25:24,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771818868] [2022-07-14 01:25:24,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:25:24,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:25:24,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:24,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:25:24,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:24,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 01:25:24,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:25:24,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771818868] [2022-07-14 01:25:24,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771818868] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 01:25:24,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44789030] [2022-07-14 01:25:24,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:25:24,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:25:24,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:25:24,964 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) [2022-07-14 01:25:24,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 01:25:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:26,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 4890 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 01:25:26,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:25:26,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-14 01:25:26,324 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:25:26,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44789030] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:25:26,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 01:25:26,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-07-14 01:25:26,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626878233] [2022-07-14 01:25:26,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:25:26,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:25:26,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:25:26,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:25:26,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:25:26,327 INFO L87 Difference]: Start difference. First operand 6652 states and 9558 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) [2022-07-14 01:25:26,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:25:26,443 INFO L93 Difference]: Finished difference Result 6654 states and 9559 transitions. [2022-07-14 01:25:26,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:25:26,444 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 [2022-07-14 01:25:26,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:25:26,481 INFO L225 Difference]: With dead ends: 6654 [2022-07-14 01:25:26,481 INFO L226 Difference]: Without dead ends: 6651 [2022-07-14 01:25:26,486 INFO L412 NwaCegarLoop]: 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 [2022-07-14 01:25:26,488 INFO L413 NwaCegarLoop]: 4849 mSDtfsCounter, 4819 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4819 SdHoareTripleChecker+Valid, 4849 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 [2022-07-14 01:25:26,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4819 Valid, 4849 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 01:25:26,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6651 states. [2022-07-14 01:25:26,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6651 to 6651. [2022-07-14 01:25:26,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6651 states, 4605 states have (on average 1.3652551574375678) internal successors, (6287), 4710 states have internal predecessors, (6287), 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) [2022-07-14 01:25:26,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6651 states to 6651 states and 9556 transitions. [2022-07-14 01:25:26,736 INFO L78 Accepts]: Start accepts. Automaton has 6651 states and 9556 transitions. Word has length 34 [2022-07-14 01:25:26,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:25:26,737 INFO L495 AbstractCegarLoop]: Abstraction has 6651 states and 9556 transitions. [2022-07-14 01:25:26,737 INFO L496 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) [2022-07-14 01:25:26,737 INFO L276 IsEmpty]: Start isEmpty. Operand 6651 states and 9556 transitions. [2022-07-14 01:25:26,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-14 01:25:26,741 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:25:26,741 INFO L195 NwaCegarLoop]: 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] [2022-07-14 01:25:26,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 01:25:26,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-07-14 01:25:26,962 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:25:26,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:25:26,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1983195014, now seen corresponding path program 1 times [2022-07-14 01:25:26,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:25:26,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978669495] [2022-07-14 01:25:26,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:25:26,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:25:27,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:27,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:25:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:27,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 01:25:27,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:25:27,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978669495] [2022-07-14 01:25:27,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978669495] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 01:25:27,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55095581] [2022-07-14 01:25:27,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:25:27,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:25:27,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:25:27,235 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) [2022-07-14 01:25:27,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 01:25:28,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:28,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 4892 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 01:25:28,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:25:28,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-14 01:25:28,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:25:28,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55095581] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:25:28,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 01:25:28,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-07-14 01:25:28,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363561692] [2022-07-14 01:25:28,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:25:28,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:25:28,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:25:28,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:25:28,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:25:28,563 INFO L87 Difference]: Start difference. First operand 6651 states and 9556 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) [2022-07-14 01:25:28,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:25:28,821 INFO L93 Difference]: Finished difference Result 10476 states and 14764 transitions. [2022-07-14 01:25:28,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:25:28,822 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 [2022-07-14 01:25:28,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:25:28,890 INFO L225 Difference]: With dead ends: 10476 [2022-07-14 01:25:28,890 INFO L226 Difference]: Without dead ends: 10472 [2022-07-14 01:25:28,898 INFO L412 NwaCegarLoop]: 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 [2022-07-14 01:25:28,903 INFO L413 NwaCegarLoop]: 5326 mSDtfsCounter, 4738 mSDsluCounter, 2729 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4738 SdHoareTripleChecker+Valid, 8055 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 [2022-07-14 01:25:28,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4738 Valid, 8055 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 01:25:28,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10472 states. [2022-07-14 01:25:29,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10472 to 10464. [2022-07-14 01:25:29,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10464 states, 7194 states have (on average 1.348623853211009) internal successors, (9702), 7369 states have internal predecessors, (9702), 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) [2022-07-14 01:25:29,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10464 states to 10464 states and 14751 transitions. [2022-07-14 01:25:29,277 INFO L78 Accepts]: Start accepts. Automaton has 10464 states and 14751 transitions. Word has length 35 [2022-07-14 01:25:29,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:25:29,279 INFO L495 AbstractCegarLoop]: Abstraction has 10464 states and 14751 transitions. [2022-07-14 01:25:29,279 INFO L496 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) [2022-07-14 01:25:29,279 INFO L276 IsEmpty]: Start isEmpty. Operand 10464 states and 14751 transitions. [2022-07-14 01:25:29,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-14 01:25:29,280 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:25:29,280 INFO L195 NwaCegarLoop]: 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] [2022-07-14 01:25:29,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 01:25:29,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:25:29,496 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:25:29,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:25:29,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1350855024, now seen corresponding path program 1 times [2022-07-14 01:25:29,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:25:29,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902378578] [2022-07-14 01:25:29,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:25:29,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:25:29,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:29,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:25:29,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:29,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 01:25:29,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:25:29,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902378578] [2022-07-14 01:25:29,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902378578] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 01:25:29,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442172023] [2022-07-14 01:25:29,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:25:29,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:25:29,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:25:29,728 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) [2022-07-14 01:25:29,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 01:25:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:30,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 4894 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 01:25:30,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:25:31,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-14 01:25:31,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:25:31,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442172023] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:25:31,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 01:25:31,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-07-14 01:25:31,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985456668] [2022-07-14 01:25:31,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:25:31,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:25:31,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:25:31,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:25:31,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:25:31,016 INFO L87 Difference]: Start difference. First operand 10464 states and 14751 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) [2022-07-14 01:25:31,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:25:31,265 INFO L93 Difference]: Finished difference Result 10466 states and 14752 transitions. [2022-07-14 01:25:31,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:25:31,266 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 [2022-07-14 01:25:31,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:25:31,307 INFO L225 Difference]: With dead ends: 10466 [2022-07-14 01:25:31,307 INFO L226 Difference]: Without dead ends: 10463 [2022-07-14 01:25:31,312 INFO L412 NwaCegarLoop]: 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 [2022-07-14 01:25:31,313 INFO L413 NwaCegarLoop]: 4843 mSDtfsCounter, 4811 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4811 SdHoareTripleChecker+Valid, 4843 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 [2022-07-14 01:25:31,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4811 Valid, 4843 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 01:25:31,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10463 states. [2022-07-14 01:25:31,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10463 to 10463. [2022-07-14 01:25:31,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10463 states, 7194 states have (on average 1.3484848484848484) internal successors, (9701), 7368 states have internal predecessors, (9701), 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) [2022-07-14 01:25:31,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10463 states to 10463 states and 14749 transitions. [2022-07-14 01:25:31,652 INFO L78 Accepts]: Start accepts. Automaton has 10463 states and 14749 transitions. Word has length 36 [2022-07-14 01:25:31,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:25:31,653 INFO L495 AbstractCegarLoop]: Abstraction has 10463 states and 14749 transitions. [2022-07-14 01:25:31,653 INFO L496 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) [2022-07-14 01:25:31,653 INFO L276 IsEmpty]: Start isEmpty. Operand 10463 states and 14749 transitions. [2022-07-14 01:25:31,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-14 01:25:31,654 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:25:31,654 INFO L195 NwaCegarLoop]: 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] [2022-07-14 01:25:31,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-14 01:25:31,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:25:31,870 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:25:31,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:25:31,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1071820349, now seen corresponding path program 1 times [2022-07-14 01:25:31,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:25:31,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229558640] [2022-07-14 01:25:31,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:25:31,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:25:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:32,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:25:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:32,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 01:25:32,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:25:32,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229558640] [2022-07-14 01:25:32,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229558640] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 01:25:32,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069652243] [2022-07-14 01:25:32,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:25:32,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:25:32,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:25:32,093 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) [2022-07-14 01:25:32,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-14 01:25:33,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:33,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 4896 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 01:25:33,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:25:33,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-14 01:25:33,630 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:25:33,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069652243] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:25:33,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 01:25:33,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-07-14 01:25:33,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268330754] [2022-07-14 01:25:33,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:25:33,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:25:33,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:25:33,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:25:33,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:25:33,632 INFO L87 Difference]: Start difference. First operand 10463 states and 14749 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) [2022-07-14 01:25:34,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:25:34,117 INFO L93 Difference]: Finished difference Result 27378 states and 38939 transitions. [2022-07-14 01:25:34,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:25:34,117 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 [2022-07-14 01:25:34,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:25:34,198 INFO L225 Difference]: With dead ends: 27378 [2022-07-14 01:25:34,198 INFO L226 Difference]: Without dead ends: 16921 [2022-07-14 01:25:34,256 INFO L412 NwaCegarLoop]: 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 [2022-07-14 01:25:34,257 INFO L413 NwaCegarLoop]: 5611 mSDtfsCounter, 4104 mSDsluCounter, 3025 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4104 SdHoareTripleChecker+Valid, 8636 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 [2022-07-14 01:25:34,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4104 Valid, 8636 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 01:25:34,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16921 states. [2022-07-14 01:25:34,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16921 to 16878. [2022-07-14 01:25:34,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16878 states, 11605 states have (on average 1.3412322274881516) internal successors, (15565), 11889 states have internal predecessors, (15565), 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) [2022-07-14 01:25:34,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16878 states to 16878 states and 23683 transitions. [2022-07-14 01:25:34,879 INFO L78 Accepts]: Start accepts. Automaton has 16878 states and 23683 transitions. Word has length 37 [2022-07-14 01:25:34,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:25:34,880 INFO L495 AbstractCegarLoop]: Abstraction has 16878 states and 23683 transitions. [2022-07-14 01:25:34,880 INFO L496 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) [2022-07-14 01:25:34,880 INFO L276 IsEmpty]: Start isEmpty. Operand 16878 states and 23683 transitions. [2022-07-14 01:25:34,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-14 01:25:34,881 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:25:34,882 INFO L195 NwaCegarLoop]: 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] [2022-07-14 01:25:34,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-14 01:25:35,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:25:35,103 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:25:35,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:25:35,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1134649549, now seen corresponding path program 1 times [2022-07-14 01:25:35,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:25:35,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551879400] [2022-07-14 01:25:35,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:25:35,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:25:35,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:35,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:25:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:35,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 01:25:35,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:25:35,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551879400] [2022-07-14 01:25:35,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551879400] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 01:25:35,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162994189] [2022-07-14 01:25:35,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:25:35,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:25:35,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:25:35,349 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) [2022-07-14 01:25:35,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-14 01:25:36,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:36,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 4898 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 01:25:36,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:25:36,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-14 01:25:36,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:25:36,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162994189] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:25:36,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 01:25:36,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-07-14 01:25:36,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104709391] [2022-07-14 01:25:36,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:25:36,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:25:36,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:25:36,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:25:36,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:25:36,627 INFO L87 Difference]: Start difference. First operand 16878 states and 23683 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) [2022-07-14 01:25:37,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:25:37,237 INFO L93 Difference]: Finished difference Result 50578 states and 72747 transitions. [2022-07-14 01:25:37,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:25:37,238 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 [2022-07-14 01:25:37,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:25:37,447 INFO L225 Difference]: With dead ends: 50578 [2022-07-14 01:25:37,447 INFO L226 Difference]: Without dead ends: 33706 [2022-07-14 01:25:37,813 INFO L412 NwaCegarLoop]: 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 [2022-07-14 01:25:37,815 INFO L413 NwaCegarLoop]: 5948 mSDtfsCounter, 4879 mSDsluCounter, 4906 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4879 SdHoareTripleChecker+Valid, 10854 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 [2022-07-14 01:25:37,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4879 Valid, 10854 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 01:25:37,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33706 states. [2022-07-14 01:25:38,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33706 to 33667. [2022-07-14 01:25:38,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33667 states, 23155 states have (on average 1.3415676959619953) internal successors, (31064), 23716 states have internal predecessors, (31064), 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) [2022-07-14 01:25:39,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33667 states to 33667 states and 48151 transitions. [2022-07-14 01:25:39,065 INFO L78 Accepts]: Start accepts. Automaton has 33667 states and 48151 transitions. Word has length 38 [2022-07-14 01:25:39,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:25:39,066 INFO L495 AbstractCegarLoop]: Abstraction has 33667 states and 48151 transitions. [2022-07-14 01:25:39,066 INFO L496 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) [2022-07-14 01:25:39,066 INFO L276 IsEmpty]: Start isEmpty. Operand 33667 states and 48151 transitions. [2022-07-14 01:25:39,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-14 01:25:39,068 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:25:39,068 INFO L195 NwaCegarLoop]: 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] [2022-07-14 01:25:39,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-14 01:25:39,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:25:39,295 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:25:39,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:25:39,296 INFO L85 PathProgramCache]: Analyzing trace with hash -815734784, now seen corresponding path program 1 times [2022-07-14 01:25:39,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:25:39,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297038186] [2022-07-14 01:25:39,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:25:39,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:25:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:39,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:25:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:39,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 01:25:39,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:25:39,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297038186] [2022-07-14 01:25:39,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297038186] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 01:25:39,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127321849] [2022-07-14 01:25:39,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:25:39,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:25:39,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:25:39,876 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) [2022-07-14 01:25:39,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-14 01:25:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 4900 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 01:25:41,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:25:41,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-14 01:25:41,162 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:25:41,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127321849] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:25:41,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 01:25:41,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-07-14 01:25:41,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807984418] [2022-07-14 01:25:41,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:25:41,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:25:41,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:25:41,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:25:41,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:25:41,164 INFO L87 Difference]: Start difference. First operand 33667 states and 48151 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) [2022-07-14 01:25:41,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:25:41,751 INFO L93 Difference]: Finished difference Result 33795 states and 48241 transitions. [2022-07-14 01:25:41,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:25:41,752 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 [2022-07-14 01:25:41,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:25:41,924 INFO L225 Difference]: With dead ends: 33795 [2022-07-14 01:25:41,925 INFO L226 Difference]: Without dead ends: 33763 [2022-07-14 01:25:41,951 INFO L412 NwaCegarLoop]: 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 [2022-07-14 01:25:41,953 INFO L413 NwaCegarLoop]: 4837 mSDtfsCounter, 4752 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4752 SdHoareTripleChecker+Valid, 4891 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 [2022-07-14 01:25:41,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4752 Valid, 4891 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 01:25:41,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33763 states. [2022-07-14 01:25:43,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33763 to 33761. [2022-07-14 01:25:43,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33761 states, 23221 states have (on average 1.339649455234486) internal successors, (31108), 23781 states have internal predecessors, (31108), 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) [2022-07-14 01:25:43,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33761 states to 33761 states and 48182 transitions. [2022-07-14 01:25:43,646 INFO L78 Accepts]: Start accepts. Automaton has 33761 states and 48182 transitions. Word has length 39 [2022-07-14 01:25:43,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:25:43,646 INFO L495 AbstractCegarLoop]: Abstraction has 33761 states and 48182 transitions. [2022-07-14 01:25:43,647 INFO L496 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) [2022-07-14 01:25:43,647 INFO L276 IsEmpty]: Start isEmpty. Operand 33761 states and 48182 transitions. [2022-07-14 01:25:43,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-14 01:25:43,649 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:25:43,649 INFO L195 NwaCegarLoop]: 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] [2022-07-14 01:25:43,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-14 01:25:43,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:25:43,874 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:25:43,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:25:43,875 INFO L85 PathProgramCache]: Analyzing trace with hash 775182156, now seen corresponding path program 1 times [2022-07-14 01:25:43,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:25:43,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996207336] [2022-07-14 01:25:43,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:25:43,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:25:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:44,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 01:25:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:44,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:44,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:25:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:44,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:25:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:44,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-14 01:25:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:44,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 01:25:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:44,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 01:25:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:44,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 01:25:44,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:44,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 01:25:44,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:25:44,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996207336] [2022-07-14 01:25:44,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996207336] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:25:44,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:25:44,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:25:44,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595164200] [2022-07-14 01:25:44,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:25:44,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:25:44,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:25:44,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:25:44,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:25:44,171 INFO L87 Difference]: Start difference. First operand 33761 states and 48182 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) [2022-07-14 01:25:49,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:04,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:06,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:09,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:17,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:26:17,601 INFO L93 Difference]: Finished difference Result 114039 states and 167242 transitions. [2022-07-14 01:26:17,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 01:26:17,602 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 [2022-07-14 01:26:17,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:26:18,094 INFO L225 Difference]: With dead ends: 114039 [2022-07-14 01:26:18,095 INFO L226 Difference]: Without dead ends: 80284 [2022-07-14 01:26:18,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-07-14 01:26:18,262 INFO L413 NwaCegarLoop]: 4706 mSDtfsCounter, 11882 mSDsluCounter, 5946 mSDsCounter, 0 mSdLazyCounter, 11423 mSolverCounterSat, 7537 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12625 SdHoareTripleChecker+Valid, 10652 SdHoareTripleChecker+Invalid, 18963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7537 IncrementalHoareTripleChecker+Valid, 11423 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.8s IncrementalHoareTripleChecker+Time [2022-07-14 01:26:18,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12625 Valid, 10652 Invalid, 18963 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7537 Valid, 11423 Invalid, 3 Unknown, 0 Unchecked, 30.8s Time] [2022-07-14 01:26:18,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80284 states. [2022-07-14 01:26:21,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80284 to 72962. [2022-07-14 01:26:21,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72962 states, 50120 states have (on average 1.3353551476456504) internal successors, (66928), 51196 states have internal predecessors, (66928), 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) [2022-07-14 01:26:21,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72962 states to 72962 states and 105183 transitions. [2022-07-14 01:26:21,933 INFO L78 Accepts]: Start accepts. Automaton has 72962 states and 105183 transitions. Word has length 70 [2022-07-14 01:26:21,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:26:21,934 INFO L495 AbstractCegarLoop]: Abstraction has 72962 states and 105183 transitions. [2022-07-14 01:26:21,935 INFO L496 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) [2022-07-14 01:26:21,935 INFO L276 IsEmpty]: Start isEmpty. Operand 72962 states and 105183 transitions. [2022-07-14 01:26:21,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-14 01:26:21,943 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:26:21,943 INFO L195 NwaCegarLoop]: 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] [2022-07-14 01:26:21,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-14 01:26:21,944 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:26:21,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:26:21,944 INFO L85 PathProgramCache]: Analyzing trace with hash 130058374, now seen corresponding path program 1 times [2022-07-14 01:26:21,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:26:21,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949450403] [2022-07-14 01:26:21,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:26:21,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:26:22,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:22,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 01:26:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:22,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:22,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:26:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:22,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 01:26:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:22,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:22,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 01:26:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:22,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:22,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 01:26:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:22,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:22,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:22,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 01:26:22,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:22,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:22,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:22,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-14 01:26:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:22,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:22,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 01:26:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:22,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-14 01:26:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:22,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:26:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:22,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-14 01:26:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:22,561 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-14 01:26:22,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:26:22,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949450403] [2022-07-14 01:26:22,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949450403] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:26:22,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:26:22,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 01:26:22,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083173144] [2022-07-14 01:26:22,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:26:22,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 01:26:22,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:26:22,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 01:26:22,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 01:26:22,566 INFO L87 Difference]: Start difference. First operand 72962 states and 105183 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 3 states have internal predecessors, (61), 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) [2022-07-14 01:26:28,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:45,358 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:47,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:49,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:51,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:53,398 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:55,546 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:57,649 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:59,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:01,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:06,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:27:06,483 INFO L93 Difference]: Finished difference Result 178532 states and 260995 transitions. [2022-07-14 01:27:06,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 01:27:06,483 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 3 states have internal predecessors, (61), 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 116 [2022-07-14 01:27:06,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:27:07,094 INFO L225 Difference]: With dead ends: 178532 [2022-07-14 01:27:07,095 INFO L226 Difference]: Without dead ends: 105576 [2022-07-14 01:27:07,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-07-14 01:27:07,535 INFO L413 NwaCegarLoop]: 3945 mSDtfsCounter, 11026 mSDsluCounter, 2573 mSDsCounter, 0 mSdLazyCounter, 11508 mSolverCounterSat, 7320 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11713 SdHoareTripleChecker+Valid, 6518 SdHoareTripleChecker+Invalid, 18836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7320 IncrementalHoareTripleChecker+Valid, 11508 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.0s IncrementalHoareTripleChecker+Time [2022-07-14 01:27:07,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11713 Valid, 6518 Invalid, 18836 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7320 Valid, 11508 Invalid, 8 Unknown, 0 Unchecked, 40.0s Time] [2022-07-14 01:27:07,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105576 states. [2022-07-14 01:27:10,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105576 to 95870. [2022-07-14 01:27:10,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95870 states, 65749 states have (on average 1.3317464904409193) internal successors, (87561), 67223 states have internal predecessors, (87561), 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) [2022-07-14 01:27:11,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95870 states to 95870 states and 137534 transitions. [2022-07-14 01:27:11,653 INFO L78 Accepts]: Start accepts. Automaton has 95870 states and 137534 transitions. Word has length 116 [2022-07-14 01:27:11,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:27:11,653 INFO L495 AbstractCegarLoop]: Abstraction has 95870 states and 137534 transitions. [2022-07-14 01:27:11,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 3 states have internal predecessors, (61), 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) [2022-07-14 01:27:11,653 INFO L276 IsEmpty]: Start isEmpty. Operand 95870 states and 137534 transitions. [2022-07-14 01:27:11,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-14 01:27:11,656 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:27:11,657 INFO L195 NwaCegarLoop]: 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] [2022-07-14 01:27:11,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-14 01:27:11,657 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:27:11,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:27:11,658 INFO L85 PathProgramCache]: Analyzing trace with hash -156120456, now seen corresponding path program 1 times [2022-07-14 01:27:11,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:27:11,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075127035] [2022-07-14 01:27:11,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:27:11,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:27:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:11,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:27:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:11,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-14 01:27:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:11,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:11,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:27:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:11,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-14 01:27:11,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:11,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:11,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:27:11,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:11,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:27:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:11,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-14 01:27:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:11,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-14 01:27:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:11,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-14 01:27:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:11,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-14 01:27:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:12,002 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-14 01:27:12,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:27:12,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075127035] [2022-07-14 01:27:12,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075127035] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 01:27:12,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373119327] [2022-07-14 01:27:12,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:27:12,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:27:12,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:27:12,011 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) [2022-07-14 01:27:12,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-14 01:27:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:13,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 5716 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:27:13,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:27:13,602 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-14 01:27:13,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:27:13,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373119327] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:27:13,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 01:27:13,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-07-14 01:27:13,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266482179] [2022-07-14 01:27:13,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:27:13,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:27:13,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:27:13,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:27:13,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:27:13,604 INFO L87 Difference]: Start difference. First operand 95870 states and 137534 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) [2022-07-14 01:27:18,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:27:18,426 INFO L93 Difference]: Finished difference Result 236948 states and 339851 transitions. [2022-07-14 01:27:18,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:27:18,426 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 [2022-07-14 01:27:18,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:27:19,293 INFO L225 Difference]: With dead ends: 236948 [2022-07-14 01:27:19,293 INFO L226 Difference]: Without dead ends: 141084 [2022-07-14 01:27:19,574 INFO L412 NwaCegarLoop]: 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 [2022-07-14 01:27:19,574 INFO L413 NwaCegarLoop]: 6106 mSDtfsCounter, 4791 mSDsluCounter, 4798 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4791 SdHoareTripleChecker+Valid, 10904 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 01:27:19,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4791 Valid, 10904 Invalid, 22 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 01:27:19,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141084 states. [2022-07-14 01:27:24,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141084 to 141035. [2022-07-14 01:27:24,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141035 states, 96771 states have (on average 1.3318349505533682) internal successors, (128883), 98932 states have internal predecessors, (128883), 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) [2022-07-14 01:27:25,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141035 states to 141035 states and 202257 transitions. [2022-07-14 01:27:25,730 INFO L78 Accepts]: Start accepts. Automaton has 141035 states and 202257 transitions. Word has length 118 [2022-07-14 01:27:25,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:27:25,730 INFO L495 AbstractCegarLoop]: Abstraction has 141035 states and 202257 transitions. [2022-07-14 01:27:25,730 INFO L496 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) [2022-07-14 01:27:25,730 INFO L276 IsEmpty]: Start isEmpty. Operand 141035 states and 202257 transitions. [2022-07-14 01:27:25,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-14 01:27:25,734 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:27:25,734 INFO L195 NwaCegarLoop]: 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] [2022-07-14 01:27:25,774 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-14 01:27:25,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-14 01:27:25,959 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:27:25,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:27:25,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1927376758, now seen corresponding path program 1 times [2022-07-14 01:27:25,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:27:25,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109728289] [2022-07-14 01:27:25,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:27:25,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:27:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:26,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:27:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:26,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 01:27:26,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:26,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:26,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:27:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:26,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 01:27:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:26,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 01:27:26,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:26,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 01:27:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:26,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:26,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:26,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:26,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:26,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 01:27:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:26,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 01:27:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:26,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 01:27:26,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:26,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-14 01:27:26,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:26,484 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-14 01:27:26,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:27:26,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109728289] [2022-07-14 01:27:26,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109728289] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 01:27:26,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603457763] [2022-07-14 01:27:26,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:27:26,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:27:26,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:27:26,487 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) [2022-07-14 01:27:26,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-14 01:27:27,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:27,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 5942 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 01:27:27,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:27:27,905 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-14 01:27:27,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 01:27:28,032 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-14 01:27:28,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603457763] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 01:27:28,032 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 01:27:28,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2022-07-14 01:27:28,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315984889] [2022-07-14 01:27:28,033 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 01:27:28,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 01:27:28,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:27:28,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 01:27:28,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-14 01:27:28,035 INFO L87 Difference]: Start difference. First operand 141035 states and 202257 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) [2022-07-14 01:27:32,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:50,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:28:01,538 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 [] [2022-07-14 01:28:11,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:28:11,164 INFO L93 Difference]: Finished difference Result 297306 states and 432532 transitions. [2022-07-14 01:28:11,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 01:28:11,165 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 [2022-07-14 01:28:11,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:28:11,940 INFO L225 Difference]: With dead ends: 297306 [2022-07-14 01:28:11,940 INFO L226 Difference]: Without dead ends: 156277 [2022-07-14 01:28:12,608 INFO L412 NwaCegarLoop]: 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 [2022-07-14 01:28:12,609 INFO L413 NwaCegarLoop]: 4123 mSDtfsCounter, 3276 mSDsluCounter, 5534 mSDsCounter, 0 mSdLazyCounter, 8799 mSolverCounterSat, 1699 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3790 SdHoareTripleChecker+Valid, 9657 SdHoareTripleChecker+Invalid, 10501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1699 IncrementalHoareTripleChecker+Valid, 8799 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.2s IncrementalHoareTripleChecker+Time [2022-07-14 01:28:12,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3790 Valid, 9657 Invalid, 10501 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1699 Valid, 8799 Invalid, 3 Unknown, 0 Unchecked, 34.2s Time] [2022-07-14 01:28:12,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156277 states. [2022-07-14 01:28:20,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156277 to 141559. [2022-07-14 01:28:20,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141559 states, 97131 states have (on average 1.330934511124152) internal successors, (129275), 99292 states have internal predecessors, (129275), 32897 states have call successors, (32897), 10529 states have call predecessors, (32897), 11530 states have return successors, (40721), 33727 states have call predecessors, (40721), 32881 states have call successors, (40721) [2022-07-14 01:28:21,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141559 states to 141559 states and 202893 transitions. [2022-07-14 01:28:21,448 INFO L78 Accepts]: Start accepts. Automaton has 141559 states and 202893 transitions. Word has length 122 [2022-07-14 01:28:21,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:28:21,449 INFO L495 AbstractCegarLoop]: Abstraction has 141559 states and 202893 transitions. [2022-07-14 01:28:21,449 INFO L496 AbstractCegarLoop]: INTERPOLANT 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) [2022-07-14 01:28:21,449 INFO L276 IsEmpty]: Start isEmpty. Operand 141559 states and 202893 transitions. [2022-07-14 01:28:21,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-14 01:28:21,454 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:28:21,454 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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] [2022-07-14 01:28:21,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-14 01:28:21,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-14 01:28:21,655 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:28:21,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:28:21,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1092744394, now seen corresponding path program 2 times [2022-07-14 01:28:21,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:28:21,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773805293] [2022-07-14 01:28:21,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:28:21,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:28:21,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:22,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:28:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:22,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 01:28:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:22,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-14 01:28:22,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:22,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-14 01:28:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:22,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-14 01:28:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:22,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:22,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:28:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:22,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 01:28:22,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:22,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 01:28:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:22,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 01:28:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:22,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:22,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:22,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:22,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:22,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:22,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:22,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 01:28:22,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:22,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 01:28:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:22,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 01:28:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:22,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 01:28:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:22,636 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-07-14 01:28:22,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:28:22,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773805293] [2022-07-14 01:28:22,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773805293] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:28:22,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:28:22,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 01:28:22,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036592954] [2022-07-14 01:28:22,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:28:22,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 01:28:22,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:28:22,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 01:28:22,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 01:28:22,640 INFO L87 Difference]: Start difference. First operand 141559 states and 202893 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-14 01:28:26,768 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 []