./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 0f8a17c6 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 0.2.1-dev-0f8a17c [2021-11-17 03:44:38,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 03:44:38,584 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 03:44:38,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 03:44:38,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 03:44:38,623 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 03:44:38,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 03:44:38,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 03:44:38,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 03:44:38,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 03:44:38,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 03:44:38,629 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 03:44:38,630 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 03:44:38,631 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 03:44:38,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 03:44:38,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 03:44:38,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 03:44:38,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 03:44:38,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 03:44:38,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 03:44:38,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 03:44:38,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 03:44:38,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 03:44:38,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 03:44:38,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 03:44:38,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 03:44:38,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 03:44:38,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 03:44:38,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 03:44:38,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 03:44:38,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 03:44:38,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 03:44:38,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 03:44:38,648 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 03:44:38,649 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 03:44:38,649 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 03:44:38,650 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 03:44:38,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 03:44:38,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 03:44:38,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 03:44:38,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 03:44:38,653 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 03:44:38,671 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 03:44:38,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 03:44:38,672 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 03:44:38,672 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 03:44:38,673 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 03:44:38,673 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 03:44:38,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 03:44:38,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 03:44:38,674 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 03:44:38,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 03:44:38,675 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 03:44:38,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 03:44:38,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 03:44:38,676 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 03:44:38,676 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 03:44:38,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 03:44:38,676 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 03:44:38,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 03:44:38,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 03:44:38,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 03:44:38,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 03:44:38,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 03:44:38,678 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 03:44:38,678 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 03:44:38,678 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 03:44:38,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 03:44:38,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 03:44:38,678 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 03:44:38,679 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 03:44:38,679 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 03:44:38,679 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 03:44:38,679 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d123e3c2a314a098b4e7a140b822a7b44f2ae282ca90c74ec5605a44f397143 [2021-11-17 03:44:38,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 03:44:38,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 03:44:38,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 03:44:38,916 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 03:44:38,917 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 03:44:38,918 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--misc--vmw_vmci--vmw_vmci.ko-entry_point.cil.out.i [2021-11-17 03:44:38,982 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e3aa26a8/8f786f18d02b4d45b63e03f32d307322/FLAGcc33c023a [2021-11-17 03:44:39,797 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 03:44:39,798 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--misc--vmw_vmci--vmw_vmci.ko-entry_point.cil.out.i [2021-11-17 03:44:39,871 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e3aa26a8/8f786f18d02b4d45b63e03f32d307322/FLAGcc33c023a [2021-11-17 03:44:40,309 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e3aa26a8/8f786f18d02b4d45b63e03f32d307322 [2021-11-17 03:44:40,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 03:44:40,313 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 03:44:40,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 03:44:40,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 03:44:40,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 03:44:40,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:44:40" (1/1) ... [2021-11-17 03:44:40,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d77ba94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:44:40, skipping insertion in model container [2021-11-17 03:44:40,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:44:40" (1/1) ... [2021-11-17 03:44:40,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 03:44:40,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 03:44:45,460 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--misc--vmw_vmci--vmw_vmci.ko-entry_point.cil.out.i[490207,490220] [2021-11-17 03:44:45,909 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 03:44:45,984 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 03:44:46,425 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--misc--vmw_vmci--vmw_vmci.ko-entry_point.cil.out.i[490207,490220] [2021-11-17 03:44:46,438 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 03:44:46,684 INFO L208 MainTranslator]: Completed translation [2021-11-17 03:44:46,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:44:46 WrapperNode [2021-11-17 03:44:46,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 03:44:46,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 03:44:46,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 03:44:46,688 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 03:44:46,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:44:46" (1/1) ... [2021-11-17 03:44:46,883 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:44:46" (1/1) ... [2021-11-17 03:44:47,074 INFO L137 Inliner]: procedures = 713, calls = 6159, calls flagged for inlining = 240, calls inlined = 191, statements flattened = 8999 [2021-11-17 03:44:47,075 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 03:44:47,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 03:44:47,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 03:44:47,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 03:44:47,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:44:46" (1/1) ... [2021-11-17 03:44:47,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:44:46" (1/1) ... [2021-11-17 03:44:47,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:44:46" (1/1) ... [2021-11-17 03:44:47,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:44:46" (1/1) ... [2021-11-17 03:44:47,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:44:46" (1/1) ... [2021-11-17 03:44:47,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:44:46" (1/1) ... [2021-11-17 03:44:47,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:44:46" (1/1) ... [2021-11-17 03:44:47,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 03:44:47,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 03:44:47,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 03:44:47,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 03:44:47,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:44:46" (1/1) ... [2021-11-17 03:44:47,500 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 03:44:47,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 03:44:47,520 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 03:44:47,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 03:44:47,555 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-17 03:44:47,556 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-17 03:44:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_msix_exact [2021-11-17 03:44:47,556 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_msix_exact [2021-11-17 03:44:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_signal_notify [2021-11-17 03:44:47,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_signal_notify [2021-11-17 03:44:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_send [2021-11-17 03:44:47,557 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_send [2021-11-17 03:44:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_exists [2021-11-17 03:44:47,558 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_exists [2021-11-17 03:44:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_guest_code_active [2021-11-17 03:44:47,561 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_guest_code_active [2021-11-17 03:44:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_subscriber_mutex [2021-11-17 03:44:47,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_subscriber_mutex [2021-11-17 03:44:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_put [2021-11-17 03:44:47,562 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_put [2021-11-17 03:44:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 03:44:47,562 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 03:44:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_open [2021-11-17 03:44:47,562 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_open [2021-11-17 03:44:47,563 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_unregister_user_memory [2021-11-17 03:44:47,563 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_unregister_user_memory [2021-11-17 03:44:47,563 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_add_notification [2021-11-17 03:44:47,563 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_add_notification [2021-11-17 03:44:47,563 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_unlocked_ioctl [2021-11-17 03:44:47,563 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_unlocked_ioctl [2021-11-17 03:44:47,564 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-17 03:44:47,564 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-17 03:44:47,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 03:44:47,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 03:44:47,564 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_get_id [2021-11-17 03:44:47,564 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_get_id [2021-11-17 03:44:47,564 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-17 03:44:47,565 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-17 03:44:47,565 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_has_entry [2021-11-17 03:44:47,565 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_has_entry [2021-11-17 03:44:47,565 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_destroy [2021-11-17 03:44:47,565 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_destroy [2021-11-17 03:44:47,565 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_send_datagram [2021-11-17 03:44:47,565 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_send_datagram [2021-11-17 03:44:47,566 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-11-17 03:44:47,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-11-17 03:44:47,566 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_get [2021-11-17 03:44:47,566 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_get [2021-11-17 03:44:47,566 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_get_entry [2021-11-17 03:44:47,566 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_get_entry [2021-11-17 03:44:47,566 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2021-11-17 03:44:47,567 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2021-11-17 03:44:47,567 INFO L130 BoogieDeclarations]: Found specification of procedure qp_acquire_queue_mutex [2021-11-17 03:44:47,567 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_acquire_queue_mutex [2021-11-17 03:44:47,567 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_get_context_id [2021-11-17 03:44:47,568 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_get_context_id [2021-11-17 03:44:47,568 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_map_queues [2021-11-17 03:44:47,568 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_map_queues [2021-11-17 03:44:47,568 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_add [2021-11-17 03:44:47,568 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_add [2021-11-17 03:44:47,569 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-17 03:44:47,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-17 03:44:47,570 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 03:44:47,570 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 03:44:47,571 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock___1 [2021-11-17 03:44:47,571 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock___1 [2021-11-17 03:44:47,571 INFO L130 BoogieDeclarations]: Found specification of procedure no_printk [2021-11-17 03:44:47,571 INFO L138 BoogieDeclarations]: Found implementation of procedure no_printk [2021-11-17 03:44:47,571 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_get_head [2021-11-17 03:44:47,571 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_get_head [2021-11-17 03:44:47,572 INFO L130 BoogieDeclarations]: Found specification of procedure dbell_delayed_dispatch [2021-11-17 03:44:47,572 INFO L138 BoogieDeclarations]: Found implementation of procedure dbell_delayed_dispatch [2021-11-17 03:44:47,572 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2021-11-17 03:44:47,572 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2021-11-17 03:44:47,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_vmci_host_dev [2021-11-17 03:44:47,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_vmci_host_dev [2021-11-17 03:44:47,573 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-17 03:44:47,573 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-17 03:44:47,573 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-17 03:44:47,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 03:44:47,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 03:44:47,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_qp_list [2021-11-17 03:44:47,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_qp_list [2021-11-17 03:44:47,574 INFO L130 BoogieDeclarations]: Found specification of procedure dg_delayed_dispatch [2021-11-17 03:44:47,574 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_delayed_dispatch [2021-11-17 03:44:47,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 03:44:47,574 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2021-11-17 03:44:47,575 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2021-11-17 03:44:47,575 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-11-17 03:44:47,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-11-17 03:44:47,576 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-17 03:44:47,576 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-17 03:44:47,576 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-17 03:44:47,576 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-17 03:44:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure dg_dispatch_as_host [2021-11-17 03:44:47,577 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_dispatch_as_host [2021-11-17 03:44:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-17 03:44:47,577 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-17 03:44:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 03:44:47,578 INFO L130 BoogieDeclarations]: Found specification of procedure qp_reset_saved_headers [2021-11-17 03:44:47,578 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_reset_saved_headers [2021-11-17 03:44:47,578 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_handle [2021-11-17 03:44:47,578 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_handle [2021-11-17 03:44:47,579 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_add_entry [2021-11-17 03:44:47,579 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_add_entry [2021-11-17 03:44:47,579 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_invalid [2021-11-17 03:44:47,580 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_invalid [2021-11-17 03:44:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_dispatch [2021-11-17 03:44:47,580 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_dispatch [2021-11-17 03:44:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 03:44:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-11-17 03:44:47,580 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-11-17 03:44:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_vmci_queue_kern_if [2021-11-17 03:44:47,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_vmci_queue_kern_if [2021-11-17 03:44:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 03:44:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure kmap [2021-11-17 03:44:47,581 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap [2021-11-17 03:44:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_find [2021-11-17 03:44:47,581 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_find [2021-11-17 03:44:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 03:44:47,582 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 03:44:47,582 INFO L130 BoogieDeclarations]: Found specification of procedure __validate_creds [2021-11-17 03:44:47,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __validate_creds [2021-11-17 03:44:47,585 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2021-11-17 03:44:47,585 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2021-11-17 03:44:47,585 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_clear_notify_call [2021-11-17 03:44:47,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_clear_notify_call [2021-11-17 03:44:47,587 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-17 03:44:47,587 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-17 03:44:47,587 INFO L130 BoogieDeclarations]: Found specification of procedure qp_notify_peer [2021-11-17 03:44:47,587 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_notify_peer [2021-11-17 03:44:47,588 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-17 03:44:47,594 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-17 03:44:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-17 03:44:47,594 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-17 03:44:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_unset_notify [2021-11-17 03:44:47,594 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_unset_notify [2021-11-17 03:44:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure __hlist_del [2021-11-17 03:44:47,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __hlist_del [2021-11-17 03:44:47,595 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_event_exit [2021-11-17 03:44:47,595 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_event_exit [2021-11-17 03:44:47,595 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_destroy [2021-11-17 03:44:47,595 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_destroy [2021-11-17 03:44:47,595 INFO L130 BoogieDeclarations]: Found specification of procedure get_cred [2021-11-17 03:44:47,595 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cred [2021-11-17 03:44:47,595 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-17 03:44:47,596 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-17 03:44:47,596 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2021-11-17 03:44:47,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2021-11-17 03:44:47,596 INFO L130 BoogieDeclarations]: Found specification of procedure qp_lock [2021-11-17 03:44:47,596 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_lock [2021-11-17 03:44:47,596 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2021-11-17 03:44:47,596 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2021-11-17 03:44:47,596 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_by_handle [2021-11-17 03:44:47,596 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_by_handle [2021-11-17 03:44:47,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-17 03:44:47,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-17 03:44:47,597 INFO L130 BoogieDeclarations]: Found specification of procedure qp_notify_peer_local [2021-11-17 03:44:47,597 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_notify_peer_local [2021-11-17 03:44:47,597 INFO L130 BoogieDeclarations]: Found specification of procedure vunmap [2021-11-17 03:44:47,597 INFO L138 BoogieDeclarations]: Found implementation of procedure vunmap [2021-11-17 03:44:47,597 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_get_user_memory [2021-11-17 03:44:47,597 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_get_user_memory [2021-11-17 03:44:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_fire_notification [2021-11-17 03:44:47,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_fire_notification [2021-11-17 03:44:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 03:44:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure qp_unlock [2021-11-17 03:44:47,598 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_unlock [2021-11-17 03:44:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_close [2021-11-17 03:44:47,598 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_close [2021-11-17 03:44:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 03:44:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_guest_probe_device [2021-11-17 03:44:47,599 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_guest_probe_device [2021-11-17 03:44:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_invalid___1 [2021-11-17 03:44:47,599 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_invalid___1 [2021-11-17 03:44:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_invalid___0 [2021-11-17 03:44:47,599 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_invalid___0 [2021-11-17 03:44:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_alloc_queue [2021-11-17 03:44:47,599 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_alloc_queue [2021-11-17 03:44:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 03:44:47,600 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 03:44:47,600 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_free_ctx [2021-11-17 03:44:47,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_free_ctx [2021-11-17 03:44:47,600 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 03:44:47,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 03:44:47,600 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_poll [2021-11-17 03:44:47,600 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_poll [2021-11-17 03:44:47,600 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-17 03:44:47,600 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-17 03:44:47,601 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 03:44:47,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 03:44:47,601 INFO L130 BoogieDeclarations]: Found specification of procedure qp_release_pages [2021-11-17 03:44:47,601 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_release_pages [2021-11-17 03:44:47,601 INFO L130 BoogieDeclarations]: Found specification of procedure qp_cleanup_queue_mutex [2021-11-17 03:44:47,601 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_cleanup_queue_mutex [2021-11-17 03:44:47,601 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_get_size [2021-11-17 03:44:47,601 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_get_size [2021-11-17 03:44:47,602 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch_hypercall [2021-11-17 03:44:47,602 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch_hypercall [2021-11-17 03:44:47,602 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-17 03:44:47,602 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-17 03:44:47,602 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-17 03:44:47,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-17 03:44:47,602 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_remove_entry [2021-11-17 03:44:47,602 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_remove_entry [2021-11-17 03:44:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 03:44:47,603 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 03:44:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_q_header_init [2021-11-17 03:44:47,603 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_q_header_init [2021-11-17 03:44:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add_rcu [2021-11-17 03:44:47,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add_rcu [2021-11-17 03:44:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_register_user_memory [2021-11-17 03:44:47,603 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_register_user_memory [2021-11-17 03:44:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-17 03:44:47,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-17 03:44:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch_guest_work [2021-11-17 03:44:47,604 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch_guest_work [2021-11-17 03:44:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure drv_cp_harray_to_user [2021-11-17 03:44:47,604 INFO L138 BoogieDeclarations]: Found implementation of procedure drv_cp_harray_to_user [2021-11-17 03:44:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 03:44:47,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 03:44:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-17 03:44:47,605 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-17 03:44:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_remove_tail [2021-11-17 03:44:47,605 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_remove_tail [2021-11-17 03:44:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_subscriber_mutex [2021-11-17 03:44:47,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_subscriber_mutex [2021-11-17 03:44:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-17 03:44:47,605 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-17 03:44:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_supports_host_qp [2021-11-17 03:44:47,605 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_supports_host_qp [2021-11-17 03:44:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 03:44:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 03:44:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 03:44:47,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 03:44:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qp_broker_detach [2021-11-17 03:44:47,606 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qp_broker_detach [2021-11-17 03:44:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_enqueue_datagram [2021-11-17 03:44:47,606 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_enqueue_datagram [2021-11-17 03:44:47,607 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-17 03:44:47,607 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-17 03:44:47,607 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_unmap_queues [2021-11-17 03:44:47,607 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_unmap_queues [2021-11-17 03:44:47,607 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_rcu [2021-11-17 03:44:47,607 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_rcu [2021-11-17 03:44:47,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_qp_list [2021-11-17 03:44:47,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_qp_list [2021-11-17 03:44:47,608 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-17 03:44:47,608 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-17 03:44:47,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 03:44:47,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 03:44:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-17 03:44:47,612 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-17 03:44:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 03:44:47,612 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 03:44:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2021-11-17 03:44:47,613 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2021-11-17 03:44:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 03:44:47,613 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 03:44:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msix [2021-11-17 03:44:47,614 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msix [2021-11-17 03:44:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_vmci_queue_kern_if [2021-11-17 03:44:47,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_vmci_queue_kern_if [2021-11-17 03:44:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_notify_dbell [2021-11-17 03:44:47,615 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_notify_dbell [2021-11-17 03:44:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_append_entry [2021-11-17 03:44:47,615 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_append_entry [2021-11-17 03:44:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2021-11-17 03:44:47,615 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2021-11-17 03:44:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-17 03:44:47,616 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-17 03:44:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure qp_broker_handle_to_entry [2021-11-17 03:44:47,616 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_broker_handle_to_entry [2021-11-17 03:44:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qpair_detach [2021-11-17 03:44:47,616 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qpair_detach [2021-11-17 03:44:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-17 03:44:47,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-17 03:44:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 03:44:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-17 03:44:47,617 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-17 03:44:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_hash [2021-11-17 03:44:47,617 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_hash [2021-11-17 03:44:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_create [2021-11-17 03:44:47,617 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_create [2021-11-17 03:44:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure event_find [2021-11-17 03:44:47,617 INFO L138 BoogieDeclarations]: Found implementation of procedure event_find [2021-11-17 03:44:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure qp_broker_alloc [2021-11-17 03:44:47,618 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_broker_alloc [2021-11-17 03:44:47,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 03:44:47,618 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch_host_work [2021-11-17 03:44:47,618 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch_host_work [2021-11-17 03:44:47,618 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-11-17 03:44:47,618 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-11-17 03:44:47,618 INFO L130 BoogieDeclarations]: Found specification of procedure hash_32 [2021-11-17 03:44:47,618 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_32 [2021-11-17 03:44:47,618 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail_rcu [2021-11-17 03:44:47,619 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail_rcu [2021-11-17 03:44:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock___1 [2021-11-17 03:44:47,619 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock___1 [2021-11-17 03:44:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure qp_guest_endpoint_destroy [2021-11-17 03:44:47,619 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_guest_endpoint_destroy [2021-11-17 03:44:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 03:44:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure dg_dispatch_as_guest [2021-11-17 03:44:47,619 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_dispatch_as_guest [2021-11-17 03:44:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-17 03:44:47,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-17 03:44:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-17 03:44:47,620 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-17 03:44:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-17 03:44:47,620 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-17 03:44:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_event_dispatch [2021-11-17 03:44:47,620 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_event_dispatch [2021-11-17 03:44:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure qp_release_queue_mutex [2021-11-17 03:44:47,621 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_release_queue_mutex [2021-11-17 03:44:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-17 03:44:47,621 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-17 03:44:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_route [2021-11-17 03:44:47,621 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_route [2021-11-17 03:44:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure get_user_pages_fast [2021-11-17 03:44:47,621 INFO L138 BoogieDeclarations]: Found implementation of procedure get_user_pages_fast [2021-11-17 03:44:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure qp_free_queue [2021-11-17 03:44:47,621 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_free_queue [2021-11-17 03:44:47,622 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_free_queue [2021-11-17 03:44:47,622 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_free_queue [2021-11-17 03:44:47,622 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-17 03:44:47,622 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-17 03:44:47,622 INFO L130 BoogieDeclarations]: Found specification of procedure atomic64_set [2021-11-17 03:44:47,622 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic64_set [2021-11-17 03:44:47,622 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_get_priv_flags [2021-11-17 03:44:47,622 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_get_priv_flags [2021-11-17 03:44:47,622 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_qp_exists [2021-11-17 03:44:47,623 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_qp_exists [2021-11-17 03:44:47,623 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu [2021-11-17 03:44:47,623 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu [2021-11-17 03:44:47,623 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_remove [2021-11-17 03:44:47,623 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_remove [2021-11-17 03:44:47,623 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 03:44:47,623 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 03:44:47,623 INFO L130 BoogieDeclarations]: Found specification of procedure qp_init_queue_mutex [2021-11-17 03:44:47,623 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_init_queue_mutex [2021-11-17 03:44:47,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 03:44:47,624 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_context_get_priv_flags [2021-11-17 03:44:47,624 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_context_get_priv_flags [2021-11-17 03:44:47,624 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_2 [2021-11-17 03:44:47,624 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_2 [2021-11-17 03:44:47,624 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-17 03:44:47,624 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-17 03:44:47,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 03:44:47,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 03:44:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure put_cred [2021-11-17 03:44:47,625 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cred [2021-11-17 03:44:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work___0 [2021-11-17 03:44:47,625 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work___0 [2021-11-17 03:44:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2021-11-17 03:44:47,625 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2021-11-17 03:44:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-17 03:44:47,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-17 03:44:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qp_guest_endpoints_exit [2021-11-17 03:44:47,626 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qp_guest_endpoints_exit [2021-11-17 03:44:47,626 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_HLIST_NODE [2021-11-17 03:44:47,626 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_HLIST_NODE [2021-11-17 03:44:47,626 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-17 03:44:47,626 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-17 03:44:47,626 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-17 03:44:47,626 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-17 03:44:47,626 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_equal [2021-11-17 03:44:47,627 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_equal [2021-11-17 03:44:47,627 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_qp_destroy [2021-11-17 03:44:47,627 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_qp_destroy [2021-11-17 03:44:47,627 INFO L130 BoogieDeclarations]: Found specification of procedure qp_guest_handle_to_entry [2021-11-17 03:44:47,627 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_guest_handle_to_entry [2021-11-17 03:44:47,627 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-17 03:44:47,627 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-17 03:44:47,627 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch [2021-11-17 03:44:47,627 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch [2021-11-17 03:44:47,628 INFO L130 BoogieDeclarations]: Found specification of procedure handle_arr_calc_size [2021-11-17 03:44:47,628 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_arr_calc_size [2021-11-17 03:44:47,628 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2021-11-17 03:44:47,628 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2021-11-17 03:44:47,628 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_unhashed [2021-11-17 03:44:47,628 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_unhashed [2021-11-17 03:44:47,628 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qp_broker_alloc [2021-11-17 03:44:47,628 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qp_broker_alloc [2021-11-17 03:44:47,628 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-17 03:44:47,629 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-17 03:44:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure kunmap [2021-11-17 03:44:47,629 INFO L138 BoogieDeclarations]: Found implementation of procedure kunmap [2021-11-17 03:44:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-17 03:44:47,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-17 03:44:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-17 03:44:47,629 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-17 03:44:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2021-11-17 03:44:47,629 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2021-11-17 03:44:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_get [2021-11-17 03:44:47,630 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_get [2021-11-17 03:44:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_vmci_host_dev [2021-11-17 03:44:47,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_vmci_host_dev [2021-11-17 03:44:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-17 03:44:47,630 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-17 03:44:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2021-11-17 03:44:47,630 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2021-11-17 03:44:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_remove_entry [2021-11-17 03:44:47,631 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_remove_entry [2021-11-17 03:44:47,631 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_event_unsubscribe [2021-11-17 03:44:47,631 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_event_unsubscribe [2021-11-17 03:44:47,631 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_deny_interaction [2021-11-17 03:44:47,631 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_deny_interaction [2021-11-17 03:44:47,631 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_guest_remove_device [2021-11-17 03:44:47,631 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_guest_remove_device [2021-11-17 03:44:47,631 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_qp_create [2021-11-17 03:44:47,632 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_qp_create [2021-11-17 03:44:47,632 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_code_active [2021-11-17 03:44:47,632 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_code_active [2021-11-17 03:44:47,632 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-17 03:44:47,632 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-17 03:44:47,632 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-17 03:44:47,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-17 03:44:47,632 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-17 03:44:47,632 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-17 03:44:47,633 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-17 03:44:47,633 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-17 03:44:47,633 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_lookup [2021-11-17 03:44:47,633 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_lookup [2021-11-17 03:44:47,633 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2021-11-17 03:44:47,633 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2021-11-17 03:44:47,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 03:44:47,633 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_create [2021-11-17 03:44:47,633 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_create [2021-11-17 03:44:47,634 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_put [2021-11-17 03:44:47,634 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_put [2021-11-17 03:44:48,739 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 03:44:48,744 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 03:44:49,106 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 03:45:04,505 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 03:45:04,524 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 03:45:04,524 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 03:45:04,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:45:04 BoogieIcfgContainer [2021-11-17 03:45:04,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 03:45:04,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 03:45:04,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 03:45:04,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 03:45:04,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:44:40" (1/3) ... [2021-11-17 03:45:04,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ea48c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:45:04, skipping insertion in model container [2021-11-17 03:45:04,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:44:46" (2/3) ... [2021-11-17 03:45:04,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ea48c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:45:04, skipping insertion in model container [2021-11-17 03:45:04,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:45:04" (3/3) ... [2021-11-17 03:45:04,539 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--misc--vmw_vmci--vmw_vmci.ko-entry_point.cil.out.i [2021-11-17 03:45:04,543 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 03:45:04,543 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 03:45:04,606 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 03:45:04,619 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 03:45:04,620 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 03:45:04,691 INFO L276 IsEmpty]: Start isEmpty. Operand has 3381 states, 2333 states have (on average 1.3686240891555936) internal successors, (3193), 2400 states have internal predecessors, (3193), 843 states have call successors, (843), 204 states have call predecessors, (843), 203 states have return successors, (839), 833 states have call predecessors, (839), 839 states have call successors, (839) [2021-11-17 03:45:04,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-17 03:45:04,699 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:45:04,699 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:45:04,700 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:45:04,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:45:04,704 INFO L85 PathProgramCache]: Analyzing trace with hash -221624845, now seen corresponding path program 1 times [2021-11-17 03:45:04,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:45:04,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658298378] [2021-11-17 03:45:04,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:45:04,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:45:05,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:05,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-17 03:45:05,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:45:05,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658298378] [2021-11-17 03:45:05,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658298378] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:45:05,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:45:05,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-17 03:45:05,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915138268] [2021-11-17 03:45:05,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:45:05,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 03:45:05,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:45:05,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 03:45:05,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 03:45:05,490 INFO L87 Difference]: Start difference. First operand has 3381 states, 2333 states have (on average 1.3686240891555936) internal successors, (3193), 2400 states have internal predecessors, (3193), 843 states have call successors, (843), 204 states have call predecessors, (843), 203 states have return successors, (839), 833 states have call predecessors, (839), 839 states have call successors, (839) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-17 03:45:05,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:45:05,787 INFO L93 Difference]: Finished difference Result 6757 states and 9929 transitions. [2021-11-17 03:45:05,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 03:45:05,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-17 03:45:05,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:45:05,831 INFO L225 Difference]: With dead ends: 6757 [2021-11-17 03:45:05,831 INFO L226 Difference]: Without dead ends: 3373 [2021-11-17 03:45:05,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 03:45:05,862 INFO L933 BasicCegarLoop]: 4856 mSDtfsCounter, 1 mSDsluCounter, 4853 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 9709 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 03:45:05,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 9709 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 03:45:05,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3373 states. [2021-11-17 03:45:06,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3373 to 3371. [2021-11-17 03:45:06,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3371 states, 2329 states have (on average 1.3662516101331044) internal successors, (3182), 2390 states have internal predecessors, (3182), 839 states have call successors, (839), 203 states have call predecessors, (839), 202 states have return successors, (824), 818 states have call predecessors, (824), 824 states have call successors, (824) [2021-11-17 03:45:06,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3371 states to 3371 states and 4845 transitions. [2021-11-17 03:45:06,086 INFO L78 Accepts]: Start accepts. Automaton has 3371 states and 4845 transitions. Word has length 27 [2021-11-17 03:45:06,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:45:06,086 INFO L470 AbstractCegarLoop]: Abstraction has 3371 states and 4845 transitions. [2021-11-17 03:45:06,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-17 03:45:06,087 INFO L276 IsEmpty]: Start isEmpty. Operand 3371 states and 4845 transitions. [2021-11-17 03:45:06,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-17 03:45:06,089 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:45:06,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:45:06,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 03:45:06,089 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:45:06,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:45:06,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1647899974, now seen corresponding path program 1 times [2021-11-17 03:45:06,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:45:06,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537252181] [2021-11-17 03:45:06,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:45:06,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:45:06,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:06,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 03:45:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:06,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-17 03:45:06,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:45:06,458 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537252181] [2021-11-17 03:45:06,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537252181] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:45:06,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:45:06,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 03:45:06,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492944801] [2021-11-17 03:45:06,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:45:06,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 03:45:06,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:45:06,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 03:45:06,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 03:45:06,460 INFO L87 Difference]: Start difference. First operand 3371 states and 4845 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-17 03:45:08,570 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:45:10,678 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:45:17,154 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:45:19,252 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:45:24,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:45:24,070 INFO L93 Difference]: Finished difference Result 10256 states and 14831 transitions. [2021-11-17 03:45:24,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 03:45:24,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-11-17 03:45:24,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:45:24,122 INFO L225 Difference]: With dead ends: 10256 [2021-11-17 03:45:24,122 INFO L226 Difference]: Without dead ends: 6891 [2021-11-17 03:45:24,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 03:45:24,140 INFO L933 BasicCegarLoop]: 7948 mSDtfsCounter, 5335 mSDsluCounter, 7658 mSDsCounter, 0 mSdLazyCounter, 2845 mSolverCounterSat, 1673 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5919 SdHoareTripleChecker+Valid, 15606 SdHoareTripleChecker+Invalid, 4522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1673 IncrementalHoareTripleChecker+Valid, 2845 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2021-11-17 03:45:24,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5919 Valid, 15606 Invalid, 4522 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1673 Valid, 2845 Invalid, 4 Unknown, 0 Unchecked, 17.0s Time] [2021-11-17 03:45:24,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6891 states. [2021-11-17 03:45:24,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6891 to 6637. [2021-11-17 03:45:24,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6637 states, 4589 states have (on average 1.3660928306820659) internal successors, (6269), 4696 states have internal predecessors, (6269), 1643 states have call successors, (1643), 405 states have call predecessors, (1643), 404 states have return successors, (1628), 1616 states have call predecessors, (1628), 1628 states have call successors, (1628) [2021-11-17 03:45:24,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6637 states to 6637 states and 9540 transitions. [2021-11-17 03:45:24,444 INFO L78 Accepts]: Start accepts. Automaton has 6637 states and 9540 transitions. Word has length 29 [2021-11-17 03:45:24,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:45:24,445 INFO L470 AbstractCegarLoop]: Abstraction has 6637 states and 9540 transitions. [2021-11-17 03:45:24,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-17 03:45:24,445 INFO L276 IsEmpty]: Start isEmpty. Operand 6637 states and 9540 transitions. [2021-11-17 03:45:24,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-17 03:45:24,452 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:45:24,452 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:45:24,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 03:45:24,453 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:45:24,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:45:24,454 INFO L85 PathProgramCache]: Analyzing trace with hash -8374377, now seen corresponding path program 1 times [2021-11-17 03:45:24,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:45:24,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944448365] [2021-11-17 03:45:24,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:45:24,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:45:24,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:24,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 03:45:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:24,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-17 03:45:24,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:45:24,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944448365] [2021-11-17 03:45:24,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944448365] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 03:45:24,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799180741] [2021-11-17 03:45:24,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:45:24,774 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 03:45:24,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 03:45:24,779 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 03:45:24,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-17 03:45:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:26,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 4742 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 03:45:26,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 03:45:26,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-17 03:45:26,230 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 03:45:26,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799180741] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:45:26,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 03:45:26,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-11-17 03:45:26,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162218466] [2021-11-17 03:45:26,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:45:26,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 03:45:26,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:45:26,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 03:45:26,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:45:26,232 INFO L87 Difference]: Start difference. First operand 6637 states and 9540 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-17 03:45:26,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:45:26,429 INFO L93 Difference]: Finished difference Result 6639 states and 9541 transitions. [2021-11-17 03:45:26,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 03:45:26,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2021-11-17 03:45:26,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:45:26,472 INFO L225 Difference]: With dead ends: 6639 [2021-11-17 03:45:26,472 INFO L226 Difference]: Without dead ends: 6636 [2021-11-17 03:45:26,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:45:26,479 INFO L933 BasicCegarLoop]: 4841 mSDtfsCounter, 4812 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4812 SdHoareTripleChecker+Valid, 4841 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 03:45:26,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4812 Valid, 4841 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 03:45:26,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6636 states. [2021-11-17 03:45:26,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6636 to 6636. [2021-11-17 03:45:26,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6636 states, 4589 states have (on average 1.3658749182828502) internal successors, (6268), 4695 states have internal predecessors, (6268), 1642 states have call successors, (1642), 405 states have call predecessors, (1642), 404 states have return successors, (1628), 1616 states have call predecessors, (1628), 1628 states have call successors, (1628) [2021-11-17 03:45:26,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6636 states to 6636 states and 9538 transitions. [2021-11-17 03:45:26,773 INFO L78 Accepts]: Start accepts. Automaton has 6636 states and 9538 transitions. Word has length 33 [2021-11-17 03:45:26,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:45:26,774 INFO L470 AbstractCegarLoop]: Abstraction has 6636 states and 9538 transitions. [2021-11-17 03:45:26,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-17 03:45:26,775 INFO L276 IsEmpty]: Start isEmpty. Operand 6636 states and 9538 transitions. [2021-11-17 03:45:26,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-17 03:45:26,778 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:45:26,778 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:45:26,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-17 03:45:27,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 03:45:27,001 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:45:27,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:45:27,002 INFO L85 PathProgramCache]: Analyzing trace with hash -260968426, now seen corresponding path program 1 times [2021-11-17 03:45:27,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:45:27,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314948480] [2021-11-17 03:45:27,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:45:27,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:45:27,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:27,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 03:45:27,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:27,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-17 03:45:27,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:45:27,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314948480] [2021-11-17 03:45:27,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314948480] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 03:45:27,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088210769] [2021-11-17 03:45:27,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:45:27,315 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 03:45:27,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 03:45:27,316 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 03:45:27,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-17 03:45:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:28,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 4744 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 03:45:28,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 03:45:28,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-17 03:45:28,723 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 03:45:28,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088210769] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:45:28,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 03:45:28,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-11-17 03:45:28,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546298573] [2021-11-17 03:45:28,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:45:28,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 03:45:28,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:45:28,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 03:45:28,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:45:28,725 INFO L87 Difference]: Start difference. First operand 6636 states and 9538 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-17 03:45:28,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:45:28,916 INFO L93 Difference]: Finished difference Result 6638 states and 9539 transitions. [2021-11-17 03:45:28,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 03:45:28,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2021-11-17 03:45:28,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:45:28,953 INFO L225 Difference]: With dead ends: 6638 [2021-11-17 03:45:28,954 INFO L226 Difference]: Without dead ends: 6635 [2021-11-17 03:45:28,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:45:28,960 INFO L933 BasicCegarLoop]: 4839 mSDtfsCounter, 4809 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4809 SdHoareTripleChecker+Valid, 4839 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 03:45:28,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4809 Valid, 4839 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 03:45:28,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6635 states. [2021-11-17 03:45:29,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6635 to 6635. [2021-11-17 03:45:29,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6635 states, 4589 states have (on average 1.3656570058836348) internal successors, (6267), 4694 states have internal predecessors, (6267), 1641 states have call successors, (1641), 405 states have call predecessors, (1641), 404 states have return successors, (1628), 1616 states have call predecessors, (1628), 1628 states have call successors, (1628) [2021-11-17 03:45:29,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6635 states to 6635 states and 9536 transitions. [2021-11-17 03:45:29,216 INFO L78 Accepts]: Start accepts. Automaton has 6635 states and 9536 transitions. Word has length 34 [2021-11-17 03:45:29,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:45:29,216 INFO L470 AbstractCegarLoop]: Abstraction has 6635 states and 9536 transitions. [2021-11-17 03:45:29,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-17 03:45:29,216 INFO L276 IsEmpty]: Start isEmpty. Operand 6635 states and 9536 transitions. [2021-11-17 03:45:29,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-17 03:45:29,217 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:45:29,217 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:45:29,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-17 03:45:29,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-11-17 03:45:29,443 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:45:29,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:45:29,444 INFO L85 PathProgramCache]: Analyzing trace with hash 498555514, now seen corresponding path program 1 times [2021-11-17 03:45:29,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:45:29,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715641386] [2021-11-17 03:45:29,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:45:29,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:45:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:29,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 03:45:29,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:29,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-17 03:45:29,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:45:29,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715641386] [2021-11-17 03:45:29,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715641386] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 03:45:29,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389954621] [2021-11-17 03:45:29,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:45:29,724 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 03:45:29,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 03:45:29,726 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 03:45:29,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-17 03:45:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:30,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 4746 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 03:45:30,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 03:45:31,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-17 03:45:31,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 03:45:31,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389954621] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:45:31,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 03:45:31,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-11-17 03:45:31,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137223384] [2021-11-17 03:45:31,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:45:31,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 03:45:31,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:45:31,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 03:45:31,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:45:31,091 INFO L87 Difference]: Start difference. First operand 6635 states and 9536 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-17 03:45:31,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:45:31,395 INFO L93 Difference]: Finished difference Result 10444 states and 14724 transitions. [2021-11-17 03:45:31,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 03:45:31,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2021-11-17 03:45:31,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:45:31,465 INFO L225 Difference]: With dead ends: 10444 [2021-11-17 03:45:31,466 INFO L226 Difference]: Without dead ends: 10440 [2021-11-17 03:45:31,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:45:31,478 INFO L933 BasicCegarLoop]: 5316 mSDtfsCounter, 4728 mSDsluCounter, 2719 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4728 SdHoareTripleChecker+Valid, 8035 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 03:45:31,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4728 Valid, 8035 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 03:45:31,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10440 states. [2021-11-17 03:45:31,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10440 to 10432. [2021-11-17 03:45:31,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10432 states, 7162 states have (on average 1.349064507120916) internal successors, (9662), 7337 states have internal predecessors, (9662), 2530 states have call successors, (2530), 740 states have call predecessors, (2530), 739 states have return successors, (2519), 2495 states have call predecessors, (2519), 2519 states have call successors, (2519) [2021-11-17 03:45:31,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10432 states to 10432 states and 14711 transitions. [2021-11-17 03:45:31,902 INFO L78 Accepts]: Start accepts. Automaton has 10432 states and 14711 transitions. Word has length 35 [2021-11-17 03:45:31,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:45:31,904 INFO L470 AbstractCegarLoop]: Abstraction has 10432 states and 14711 transitions. [2021-11-17 03:45:31,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-17 03:45:31,904 INFO L276 IsEmpty]: Start isEmpty. Operand 10432 states and 14711 transitions. [2021-11-17 03:45:31,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-17 03:45:31,905 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:45:31,905 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:45:31,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-17 03:45:32,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 03:45:32,128 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:45:32,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:45:32,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1726001255, now seen corresponding path program 1 times [2021-11-17 03:45:32,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:45:32,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104368012] [2021-11-17 03:45:32,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:45:32,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:45:32,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:32,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 03:45:32,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:32,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-17 03:45:32,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:45:32,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104368012] [2021-11-17 03:45:32,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104368012] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 03:45:32,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954262414] [2021-11-17 03:45:32,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:45:32,359 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 03:45:32,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 03:45:32,360 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 03:45:32,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-17 03:45:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:33,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 4748 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 03:45:33,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 03:45:33,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-17 03:45:33,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 03:45:33,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954262414] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:45:33,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 03:45:33,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-11-17 03:45:33,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336513601] [2021-11-17 03:45:33,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:45:33,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 03:45:33,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:45:33,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 03:45:33,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:45:33,646 INFO L87 Difference]: Start difference. First operand 10432 states and 14711 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-17 03:45:33,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:45:33,862 INFO L93 Difference]: Finished difference Result 10434 states and 14712 transitions. [2021-11-17 03:45:33,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 03:45:33,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2021-11-17 03:45:33,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:45:33,912 INFO L225 Difference]: With dead ends: 10434 [2021-11-17 03:45:33,912 INFO L226 Difference]: Without dead ends: 10431 [2021-11-17 03:45:33,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:45:33,921 INFO L933 BasicCegarLoop]: 4833 mSDtfsCounter, 4801 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4801 SdHoareTripleChecker+Valid, 4833 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 03:45:33,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4801 Valid, 4833 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 03:45:33,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10431 states. [2021-11-17 03:45:34,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10431 to 10431. [2021-11-17 03:45:34,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10431 states, 7162 states have (on average 1.3489248813180676) internal successors, (9661), 7336 states have internal predecessors, (9661), 2529 states have call successors, (2529), 740 states have call predecessors, (2529), 739 states have return successors, (2519), 2495 states have call predecessors, (2519), 2519 states have call successors, (2519) [2021-11-17 03:45:34,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10431 states to 10431 states and 14709 transitions. [2021-11-17 03:45:34,379 INFO L78 Accepts]: Start accepts. Automaton has 10431 states and 14709 transitions. Word has length 36 [2021-11-17 03:45:34,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:45:34,380 INFO L470 AbstractCegarLoop]: Abstraction has 10431 states and 14709 transitions. [2021-11-17 03:45:34,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-17 03:45:34,380 INFO L276 IsEmpty]: Start isEmpty. Operand 10431 states and 14709 transitions. [2021-11-17 03:45:34,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-17 03:45:34,381 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:45:34,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:45:34,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-17 03:45:34,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 03:45:34,595 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:45:34,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:45:34,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1967779491, now seen corresponding path program 1 times [2021-11-17 03:45:34,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:45:34,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490321932] [2021-11-17 03:45:34,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:45:34,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:45:34,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:34,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 03:45:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:34,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-17 03:45:34,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:45:34,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490321932] [2021-11-17 03:45:34,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490321932] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 03:45:34,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755766457] [2021-11-17 03:45:34,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:45:34,884 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 03:45:34,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 03:45:34,885 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 03:45:34,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-17 03:45:36,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:36,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 4750 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 03:45:36,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 03:45:36,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-17 03:45:36,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 03:45:36,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755766457] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:45:36,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 03:45:36,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-11-17 03:45:36,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686024951] [2021-11-17 03:45:36,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:45:36,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 03:45:36,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:45:36,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 03:45:36,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:45:36,234 INFO L87 Difference]: Start difference. First operand 10431 states and 14709 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-17 03:45:36,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:45:36,802 INFO L93 Difference]: Finished difference Result 27282 states and 38819 transitions. [2021-11-17 03:45:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 03:45:36,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2021-11-17 03:45:36,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:45:36,903 INFO L225 Difference]: With dead ends: 27282 [2021-11-17 03:45:36,904 INFO L226 Difference]: Without dead ends: 16857 [2021-11-17 03:45:36,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:45:36,963 INFO L933 BasicCegarLoop]: 5598 mSDtfsCounter, 4094 mSDsluCounter, 3015 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4094 SdHoareTripleChecker+Valid, 8613 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 03:45:36,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4094 Valid, 8613 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 03:45:36,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16857 states. [2021-11-17 03:45:37,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16857 to 16814. [2021-11-17 03:45:37,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16814 states, 11541 states have (on average 1.3417381509401265) internal successors, (15485), 11825 states have internal predecessors, (15485), 3966 states have call successors, (3966), 1300 states have call predecessors, (3966), 1306 states have return successors, (4152), 3925 states have call predecessors, (4152), 3952 states have call successors, (4152) [2021-11-17 03:45:37,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16814 states to 16814 states and 23603 transitions. [2021-11-17 03:45:37,695 INFO L78 Accepts]: Start accepts. Automaton has 16814 states and 23603 transitions. Word has length 37 [2021-11-17 03:45:37,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:45:37,695 INFO L470 AbstractCegarLoop]: Abstraction has 16814 states and 23603 transitions. [2021-11-17 03:45:37,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-17 03:45:37,696 INFO L276 IsEmpty]: Start isEmpty. Operand 16814 states and 23603 transitions. [2021-11-17 03:45:37,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-17 03:45:37,697 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:45:37,698 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:45:37,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-17 03:45:37,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 03:45:37,923 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:45:37,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:45:37,924 INFO L85 PathProgramCache]: Analyzing trace with hash -872965348, now seen corresponding path program 1 times [2021-11-17 03:45:37,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:45:37,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441926158] [2021-11-17 03:45:37,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:45:37,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:45:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:38,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 03:45:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:38,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-17 03:45:38,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:45:38,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441926158] [2021-11-17 03:45:38,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441926158] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 03:45:38,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62362544] [2021-11-17 03:45:38,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:45:38,190 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 03:45:38,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 03:45:38,192 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 03:45:38,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-17 03:45:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:39,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 4752 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 03:45:39,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 03:45:39,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-17 03:45:39,377 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 03:45:39,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62362544] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:45:39,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 03:45:39,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-11-17 03:45:39,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384476779] [2021-11-17 03:45:39,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:45:39,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 03:45:39,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:45:39,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 03:45:39,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:45:39,379 INFO L87 Difference]: Start difference. First operand 16814 states and 23603 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-17 03:45:40,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:45:40,398 INFO L93 Difference]: Finished difference Result 50386 states and 72507 transitions. [2021-11-17 03:45:40,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 03:45:40,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2021-11-17 03:45:40,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:45:40,583 INFO L225 Difference]: With dead ends: 50386 [2021-11-17 03:45:40,584 INFO L226 Difference]: Without dead ends: 33578 [2021-11-17 03:45:40,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:45:40,665 INFO L933 BasicCegarLoop]: 5937 mSDtfsCounter, 4869 mSDsluCounter, 4896 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4869 SdHoareTripleChecker+Valid, 10833 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 03:45:40,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4869 Valid, 10833 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 03:45:40,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33578 states. [2021-11-17 03:45:41,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33578 to 33539. [2021-11-17 03:45:41,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33539 states, 23027 states have (on average 1.3420766925782777) internal successors, (30904), 23588 states have internal predecessors, (30904), 7907 states have call successors, (7907), 2595 states have call predecessors, (7907), 2604 states have return successors, (9180), 7829 states have call predecessors, (9180), 7892 states have call successors, (9180) [2021-11-17 03:45:42,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33539 states to 33539 states and 47991 transitions. [2021-11-17 03:45:42,116 INFO L78 Accepts]: Start accepts. Automaton has 33539 states and 47991 transitions. Word has length 38 [2021-11-17 03:45:42,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:45:42,118 INFO L470 AbstractCegarLoop]: Abstraction has 33539 states and 47991 transitions. [2021-11-17 03:45:42,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-17 03:45:42,119 INFO L276 IsEmpty]: Start isEmpty. Operand 33539 states and 47991 transitions. [2021-11-17 03:45:42,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-17 03:45:42,120 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:45:42,120 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:45:42,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-17 03:45:42,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 03:45:42,338 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:45:42,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:45:42,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1293460416, now seen corresponding path program 1 times [2021-11-17 03:45:42,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:45:42,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718407207] [2021-11-17 03:45:42,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:45:42,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:45:42,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:42,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 03:45:42,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:42,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-17 03:45:42,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:45:42,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718407207] [2021-11-17 03:45:42,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718407207] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 03:45:42,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138923152] [2021-11-17 03:45:42,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:45:42,544 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 03:45:42,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 03:45:42,545 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 03:45:42,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-17 03:45:43,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:43,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 4754 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 03:45:43,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 03:45:43,807 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-17 03:45:43,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 03:45:43,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138923152] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:45:43,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 03:45:43,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-11-17 03:45:43,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032251059] [2021-11-17 03:45:43,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:45:43,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 03:45:43,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:45:43,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 03:45:43,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:45:43,810 INFO L87 Difference]: Start difference. First operand 33539 states and 47991 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-17 03:45:44,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:45:44,547 INFO L93 Difference]: Finished difference Result 33667 states and 48081 transitions. [2021-11-17 03:45:44,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 03:45:44,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2021-11-17 03:45:44,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:45:44,720 INFO L225 Difference]: With dead ends: 33667 [2021-11-17 03:45:44,720 INFO L226 Difference]: Without dead ends: 33635 [2021-11-17 03:45:44,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:45:44,752 INFO L933 BasicCegarLoop]: 4827 mSDtfsCounter, 4742 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4742 SdHoareTripleChecker+Valid, 4881 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 03:45:44,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4742 Valid, 4881 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 03:45:44,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33635 states. [2021-11-17 03:45:46,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33635 to 33633. [2021-11-17 03:45:46,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33633 states, 23093 states have (on average 1.3401463646992595) internal successors, (30948), 23653 states have internal predecessors, (30948), 7900 states have call successors, (7900), 2630 states have call predecessors, (7900), 2639 states have return successors, (9174), 7823 states have call predecessors, (9174), 7886 states have call successors, (9174) [2021-11-17 03:45:46,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33633 states to 33633 states and 48022 transitions. [2021-11-17 03:45:46,416 INFO L78 Accepts]: Start accepts. Automaton has 33633 states and 48022 transitions. Word has length 39 [2021-11-17 03:45:46,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:45:46,416 INFO L470 AbstractCegarLoop]: Abstraction has 33633 states and 48022 transitions. [2021-11-17 03:45:46,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-17 03:45:46,416 INFO L276 IsEmpty]: Start isEmpty. Operand 33633 states and 48022 transitions. [2021-11-17 03:45:46,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-17 03:45:46,419 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:45:46,419 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:45:46,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-17 03:45:46,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 03:45:46,635 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:45:46,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:45:46,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1815788574, now seen corresponding path program 1 times [2021-11-17 03:45:46,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:45:46,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467377397] [2021-11-17 03:45:46,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:45:46,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:45:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:46,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 03:45:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:46,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:45:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:46,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:45:46,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:46,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:45:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:46,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 03:45:46,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:46,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 03:45:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:46,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 03:45:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:46,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 03:45:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:45:46,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-17 03:45:46,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:45:46,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467377397] [2021-11-17 03:45:46,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467377397] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:45:46,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:45:46,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 03:45:46,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122604223] [2021-11-17 03:45:46,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:45:46,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 03:45:46,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:45:46,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 03:45:46,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:45:46,910 INFO L87 Difference]: Start difference. First operand 33633 states and 48022 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-17 03:45:49,000 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:45:51,245 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:45:53,334 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:45:58,166 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:46:09,753 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:46:24,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:46:24,291 INFO L93 Difference]: Finished difference Result 113655 states and 166762 transitions. [2021-11-17 03:46:24,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 03:46:24,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2021-11-17 03:46:24,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:46:24,781 INFO L225 Difference]: With dead ends: 113655 [2021-11-17 03:46:24,781 INFO L226 Difference]: Without dead ends: 80028 [2021-11-17 03:46:25,077 INFO L932 BasicCegarLoop]: 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 [2021-11-17 03:46:25,078 INFO L933 BasicCegarLoop]: 4689 mSDtfsCounter, 11877 mSDsluCounter, 6711 mSDsCounter, 0 mSdLazyCounter, 10621 mSolverCounterSat, 7556 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12618 SdHoareTripleChecker+Valid, 11400 SdHoareTripleChecker+Invalid, 18181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7556 IncrementalHoareTripleChecker+Valid, 10621 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.6s IncrementalHoareTripleChecker+Time [2021-11-17 03:46:25,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12618 Valid, 11400 Invalid, 18181 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7556 Valid, 10621 Invalid, 4 Unknown, 0 Unchecked, 34.6s Time] [2021-11-17 03:46:25,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80028 states. [2021-11-17 03:46:27,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80028 to 72706. [2021-11-17 03:46:27,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72706 states, 49864 states have (on average 1.3357933579335792) internal successors, (66608), 50940 states have internal predecessors, (66608), 17123 states have call successors, (17123), 5257 states have call predecessors, (17123), 5718 states have return successors, (21132), 17520 states have call predecessors, (21132), 17108 states have call successors, (21132) [2021-11-17 03:46:28,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72706 states to 72706 states and 104863 transitions. [2021-11-17 03:46:28,495 INFO L78 Accepts]: Start accepts. Automaton has 72706 states and 104863 transitions. Word has length 70 [2021-11-17 03:46:28,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:46:28,495 INFO L470 AbstractCegarLoop]: Abstraction has 72706 states and 104863 transitions. [2021-11-17 03:46:28,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-17 03:46:28,496 INFO L276 IsEmpty]: Start isEmpty. Operand 72706 states and 104863 transitions. [2021-11-17 03:46:28,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-17 03:46:28,503 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:46:28,503 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:46:28,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 03:46:28,504 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:46:28,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:46:28,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1788720308, now seen corresponding path program 1 times [2021-11-17 03:46:28,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:46:28,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287597783] [2021-11-17 03:46:28,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:46:28,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:46:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:46:28,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-17 03:46:28,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:46:28,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:46:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:46:28,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:46:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:46:28,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 03:46:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:46:28,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:46:28,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:46:28,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 03:46:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:46:28,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:46:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:46:28,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 03:46:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:46:28,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:46:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:46:28,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 03:46:28,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:46:28,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:46:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:46:28,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-17 03:46:28,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:46:28,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:46:28,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:46:28,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 03:46:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:46:28,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 03:46:28,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:46:28,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 03:46:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:46:29,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 03:46:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:46:29,012 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-17 03:46:29,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:46:29,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287597783] [2021-11-17 03:46:29,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287597783] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:46:29,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:46:29,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 03:46:29,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419709612] [2021-11-17 03:46:29,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:46:29,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 03:46:29,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:46:29,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 03:46:29,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 03:46:29,016 INFO L87 Difference]: Start difference. First operand 72706 states and 104863 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-17 03:46:31,108 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:46:33,213 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:46:35,326 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:46:41,647 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:47:04,554 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:47:07,656 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:47:10,269 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:47:17,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:47:17,282 INFO L93 Difference]: Finished difference Result 177924 states and 260235 transitions. [2021-11-17 03:47:17,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 03:47:17,283 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2021-11-17 03:47:17,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:47:17,994 INFO L225 Difference]: With dead ends: 177924 [2021-11-17 03:47:17,995 INFO L226 Difference]: Without dead ends: 105224 [2021-11-17 03:47:18,203 INFO L932 BasicCegarLoop]: 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 [2021-11-17 03:47:18,203 INFO L933 BasicCegarLoop]: 3923 mSDtfsCounter, 10367 mSDsluCounter, 3794 mSDsCounter, 0 mSdLazyCounter, 13485 mSolverCounterSat, 7054 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11053 SdHoareTripleChecker+Valid, 7717 SdHoareTripleChecker+Invalid, 20545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7054 IncrementalHoareTripleChecker+Valid, 13485 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.0s IncrementalHoareTripleChecker+Time [2021-11-17 03:47:18,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11053 Valid, 7717 Invalid, 20545 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7054 Valid, 13485 Invalid, 6 Unknown, 0 Unchecked, 44.0s Time] [2021-11-17 03:47:18,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105224 states. [2021-11-17 03:47:21,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105224 to 95518. [2021-11-17 03:47:21,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95518 states, 65397 states have (on average 1.332186491735095) internal successors, (87121), 66871 states have internal predecessors, (87121), 22346 states have call successors, (22346), 7154 states have call predecessors, (22346), 7774 states have return successors, (27627), 22846 states have call predecessors, (27627), 22331 states have call successors, (27627) [2021-11-17 03:47:22,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95518 states to 95518 states and 137094 transitions. [2021-11-17 03:47:22,504 INFO L78 Accepts]: Start accepts. Automaton has 95518 states and 137094 transitions. Word has length 119 [2021-11-17 03:47:22,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:47:22,505 INFO L470 AbstractCegarLoop]: Abstraction has 95518 states and 137094 transitions. [2021-11-17 03:47:22,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-17 03:47:22,505 INFO L276 IsEmpty]: Start isEmpty. Operand 95518 states and 137094 transitions. [2021-11-17 03:47:22,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-17 03:47:22,508 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:47:22,509 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:47:22,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 03:47:22,509 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:47:22,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:47:22,510 INFO L85 PathProgramCache]: Analyzing trace with hash 605991507, now seen corresponding path program 1 times [2021-11-17 03:47:22,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:47:22,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827150191] [2021-11-17 03:47:22,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:47:22,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:47:22,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:22,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 03:47:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:22,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 03:47:22,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:22,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:47:22,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:22,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:47:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:22,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 03:47:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:22,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:47:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:22,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:47:22,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:22,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:47:22,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:23,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-17 03:47:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:23,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 03:47:23,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:23,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 03:47:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:23,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 03:47:23,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:23,037 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-17 03:47:23,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:47:23,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827150191] [2021-11-17 03:47:23,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827150191] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 03:47:23,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351518391] [2021-11-17 03:47:23,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:47:23,038 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 03:47:23,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 03:47:23,040 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 03:47:23,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-17 03:47:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:24,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 5487 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-17 03:47:24,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 03:47:24,496 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-17 03:47:24,496 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 03:47:24,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1351518391] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:47:24,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 03:47:24,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2021-11-17 03:47:24,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125656623] [2021-11-17 03:47:24,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:47:24,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 03:47:24,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:47:24,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 03:47:24,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-17 03:47:24,498 INFO L87 Difference]: Start difference. First operand 95518 states and 137094 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-17 03:47:29,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:47:29,665 INFO L93 Difference]: Finished difference Result 236068 states and 338751 transitions. [2021-11-17 03:47:29,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 03:47:29,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 118 [2021-11-17 03:47:29,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:47:30,554 INFO L225 Difference]: With dead ends: 236068 [2021-11-17 03:47:30,554 INFO L226 Difference]: Without dead ends: 140556 [2021-11-17 03:47:31,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-17 03:47:31,066 INFO L933 BasicCegarLoop]: 6166 mSDtfsCounter, 4781 mSDsluCounter, 4788 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4781 SdHoareTripleChecker+Valid, 10954 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 03:47:31,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4781 Valid, 10954 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 03:47:31,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140556 states. [2021-11-17 03:47:36,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140556 to 140507. [2021-11-17 03:47:36,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140507 states, 96243 states have (on average 1.332283906362021) internal successors, (128223), 98404 states have internal predecessors, (128223), 32829 states have call successors, (32829), 10529 states have call predecessors, (32829), 11434 states have return successors, (40545), 33563 states have call predecessors, (40545), 32813 states have call successors, (40545) [2021-11-17 03:47:36,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140507 states to 140507 states and 201597 transitions. [2021-11-17 03:47:37,279 INFO L78 Accepts]: Start accepts. Automaton has 140507 states and 201597 transitions. Word has length 118 [2021-11-17 03:47:37,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:47:37,281 INFO L470 AbstractCegarLoop]: Abstraction has 140507 states and 201597 transitions. [2021-11-17 03:47:37,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-17 03:47:37,282 INFO L276 IsEmpty]: Start isEmpty. Operand 140507 states and 201597 transitions. [2021-11-17 03:47:37,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-17 03:47:37,313 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:47:37,314 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:47:37,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-17 03:47:37,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-17 03:47:37,520 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:47:37,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:47:37,520 INFO L85 PathProgramCache]: Analyzing trace with hash -960633533, now seen corresponding path program 1 times [2021-11-17 03:47:37,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:47:37,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370633663] [2021-11-17 03:47:37,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:47:37,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:47:37,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:37,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 03:47:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:37,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 03:47:37,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:37,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:47:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:37,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:47:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:37,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 03:47:37,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:37,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 03:47:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:37,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 03:47:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:37,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:47:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:37,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:47:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:37,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:47:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:37,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 03:47:37,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:37,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:47:37,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:37,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 03:47:37,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:37,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 03:47:37,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:38,000 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-17 03:47:38,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:47:38,001 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370633663] [2021-11-17 03:47:38,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370633663] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 03:47:38,001 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045749487] [2021-11-17 03:47:38,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:47:38,001 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 03:47:38,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 03:47:38,004 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 03:47:38,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-17 03:47:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:47:39,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 5751 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 03:47:39,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 03:47:39,559 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-17 03:47:39,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 03:47:39,867 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-17 03:47:39,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045749487] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 03:47:39,868 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-17 03:47:39,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2021-11-17 03:47:39,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665101207] [2021-11-17 03:47:39,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-17 03:47:39,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 03:47:39,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:47:39,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 03:47:39,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-17 03:47:39,869 INFO L87 Difference]: Start difference. First operand 140507 states and 201597 transitions. Second operand has 10 states, 10 states have (on average 14.3) internal successors, (143), 7 states have internal predecessors, (143), 5 states have call successors, (37), 5 states have call predecessors, (37), 2 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2021-11-17 03:47:41,949 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:47:44,068 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:47:48,778 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:47:57,314 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:48:02,888 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:48:13,541 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:48:18,501 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:48:27,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:48:27,770 INFO L93 Difference]: Finished difference Result 296250 states and 431212 transitions. [2021-11-17 03:48:27,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 03:48:27,771 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.3) internal successors, (143), 7 states have internal predecessors, (143), 5 states have call successors, (37), 5 states have call predecessors, (37), 2 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) Word has length 122 [2021-11-17 03:48:27,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:48:28,565 INFO L225 Difference]: With dead ends: 296250 [2021-11-17 03:48:28,565 INFO L226 Difference]: Without dead ends: 155749 [2021-11-17 03:48:28,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-11-17 03:48:28,971 INFO L933 BasicCegarLoop]: 4081 mSDtfsCounter, 4810 mSDsluCounter, 13764 mSDsCounter, 0 mSdLazyCounter, 13169 mSolverCounterSat, 3860 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5323 SdHoareTripleChecker+Valid, 17845 SdHoareTripleChecker+Invalid, 17033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3860 IncrementalHoareTripleChecker+Valid, 13169 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.6s IncrementalHoareTripleChecker+Time [2021-11-17 03:48:28,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5323 Valid, 17845 Invalid, 17033 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3860 Valid, 13169 Invalid, 4 Unknown, 0 Unchecked, 38.6s Time] [2021-11-17 03:48:29,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155749 states.