./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 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G --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-7e70bad [2021-11-23 12:34:23,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 12:34:23,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 12:34:23,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 12:34:23,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 12:34:23,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 12:34:23,905 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 12:34:23,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 12:34:23,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 12:34:23,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 12:34:23,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 12:34:23,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 12:34:23,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 12:34:23,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 12:34:23,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 12:34:23,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 12:34:23,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 12:34:23,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 12:34:23,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 12:34:23,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 12:34:23,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 12:34:23,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 12:34:23,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 12:34:23,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 12:34:23,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 12:34:23,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 12:34:23,980 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 12:34:23,981 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 12:34:23,982 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 12:34:23,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 12:34:23,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 12:34:23,988 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 12:34:23,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 12:34:23,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 12:34:23,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 12:34:23,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 12:34:23,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 12:34:23,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 12:34:23,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 12:34:23,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 12:34:23,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 12:34:24,000 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 12:34:24,034 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 12:34:24,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 12:34:24,035 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 12:34:24,035 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 12:34:24,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 12:34:24,037 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 12:34:24,038 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 12:34:24,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 12:34:24,038 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 12:34:24,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 12:34:24,039 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 12:34:24,039 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 12:34:24,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 12:34:24,040 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 12:34:24,040 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 12:34:24,041 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 12:34:24,041 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 12:34:24,041 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 12:34:24,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 12:34:24,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:34:24,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 12:34:24,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 12:34:24,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 12:34:24,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 12:34:24,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 12:34:24,044 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 12:34:24,044 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 12:34:24,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 12:34:24,045 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 12:34:24,045 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d123e3c2a314a098b4e7a140b822a7b44f2ae282ca90c74ec5605a44f397143 [2021-11-23 12:34:24,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 12:34:24,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 12:34:24,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 12:34:24,438 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 12:34:24,439 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 12:34:24,441 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/../../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 [2021-11-23 12:34:24,553 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/data/9ba7c05b9/f609940a89ac48c9a3ad645a7715f41e/FLAG79d7f558d [2021-11-23 12:34:26,017 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 12:34:26,018 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/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 [2021-11-23 12:34:26,100 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/data/9ba7c05b9/f609940a89ac48c9a3ad645a7715f41e/FLAG79d7f558d [2021-11-23 12:34:26,581 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/data/9ba7c05b9/f609940a89ac48c9a3ad645a7715f41e [2021-11-23 12:34:26,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 12:34:26,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 12:34:26,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 12:34:26,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 12:34:26,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 12:34:26,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:34:26" (1/1) ... [2021-11-23 12:34:26,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5decbec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:26, skipping insertion in model container [2021-11-23 12:34:26,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:34:26" (1/1) ... [2021-11-23 12:34:26,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 12:34:26,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 12:34:33,419 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/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] [2021-11-23 12:34:33,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:34:34,097 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 12:34:34,833 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/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] [2021-11-23 12:34:34,856 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:34:35,240 INFO L208 MainTranslator]: Completed translation [2021-11-23 12:34:35,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:35 WrapperNode [2021-11-23 12:34:35,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 12:34:35,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 12:34:35,243 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 12:34:35,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 12:34:35,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:35" (1/1) ... [2021-11-23 12:34:35,532 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:35" (1/1) ... [2021-11-23 12:34:37,800 INFO L137 Inliner]: procedures = 713, calls = 6159, calls flagged for inlining = 1565, calls inlined = 4493, statements flattened = 65156 [2021-11-23 12:34:37,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 12:34:37,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 12:34:37,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 12:34:37,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 12:34:37,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:35" (1/1) ... [2021-11-23 12:34:37,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:35" (1/1) ... [2021-11-23 12:34:38,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:35" (1/1) ... [2021-11-23 12:34:38,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:35" (1/1) ... [2021-11-23 12:34:39,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:35" (1/1) ... [2021-11-23 12:34:40,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:35" (1/1) ... [2021-11-23 12:34:40,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:35" (1/1) ... [2021-11-23 12:34:40,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 12:34:40,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 12:34:40,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 12:34:40,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 12:34:40,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:35" (1/1) ... [2021-11-23 12:34:40,677 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:34:40,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:34:40,715 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 12:34:40,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 12:34:40,779 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_send [2021-11-23 12:34:40,779 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_send [2021-11-23 12:34:40,780 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_put [2021-11-23 12:34:40,781 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_put [2021-11-23 12:34:40,781 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_destroy [2021-11-23 12:34:40,781 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_destroy [2021-11-23 12:34:40,781 INFO L130 BoogieDeclarations]: Found specification of procedure dbell_delayed_dispatch [2021-11-23 12:34:40,782 INFO L138 BoogieDeclarations]: Found implementation of procedure dbell_delayed_dispatch [2021-11-23 12:34:40,782 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-23 12:34:40,782 INFO L130 BoogieDeclarations]: Found specification of procedure dg_delayed_dispatch [2021-11-23 12:34:40,782 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_delayed_dispatch [2021-11-23 12:34:40,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 12:34:40,783 INFO L130 BoogieDeclarations]: Found specification of procedure dg_dispatch_as_host [2021-11-23 12:34:40,783 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_dispatch_as_host [2021-11-23 12:34:40,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 12:34:40,783 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_dispatch [2021-11-23 12:34:40,784 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_dispatch [2021-11-23 12:34:40,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 12:34:40,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 12:34:40,784 INFO L130 BoogieDeclarations]: Found specification of procedure qp_notify_peer [2021-11-23 12:34:40,784 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_notify_peer [2021-11-23 12:34:40,785 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-23 12:34:40,785 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-23 12:34:40,785 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_fire_notification [2021-11-23 12:34:40,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_fire_notification [2021-11-23 12:34:40,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 12:34:40,789 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_close [2021-11-23 12:34:40,789 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_close [2021-11-23 12:34:40,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 12:34:40,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 12:34:40,790 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 12:34:40,790 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_free_ctx [2021-11-23 12:34:40,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_free_ctx [2021-11-23 12:34:40,790 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 12:34:40,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 12:34:40,791 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 12:34:40,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 12:34:40,791 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch_guest_work [2021-11-23 12:34:40,791 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch_guest_work [2021-11-23 12:34:40,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 12:34:40,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 12:34:40,792 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-23 12:34:40,792 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-23 12:34:40,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 12:34:40,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 12:34:40,793 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qp_broker_detach [2021-11-23 12:34:40,793 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qp_broker_detach [2021-11-23 12:34:40,794 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_enqueue_datagram [2021-11-23 12:34:40,794 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_enqueue_datagram [2021-11-23 12:34:40,794 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qpair_detach [2021-11-23 12:34:40,794 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qpair_detach [2021-11-23 12:34:40,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 12:34:40,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 12:34:40,795 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch_host_work [2021-11-23 12:34:40,795 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch_host_work [2021-11-23 12:34:40,796 INFO L130 BoogieDeclarations]: Found specification of procedure qp_guest_endpoint_destroy [2021-11-23 12:34:40,796 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_guest_endpoint_destroy [2021-11-23 12:34:40,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 12:34:40,797 INFO L130 BoogieDeclarations]: Found specification of procedure dg_dispatch_as_guest [2021-11-23 12:34:40,798 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_dispatch_as_guest [2021-11-23 12:34:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_get_priv_flags [2021-11-23 12:34:40,799 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_get_priv_flags [2021-11-23 12:34:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_remove [2021-11-23 12:34:40,800 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_remove [2021-11-23 12:34:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 12:34:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_context_get_priv_flags [2021-11-23 12:34:40,800 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_context_get_priv_flags [2021-11-23 12:34:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qp_guest_endpoints_exit [2021-11-23 12:34:40,801 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qp_guest_endpoints_exit [2021-11-23 12:34:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch [2021-11-23 12:34:40,802 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch [2021-11-23 12:34:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_guest_remove_device [2021-11-23 12:34:40,803 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_guest_remove_device [2021-11-23 12:34:40,803 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 12:34:40,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 12:34:40,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 12:34:40,804 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_put [2021-11-23 12:34:40,804 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_put [2021-11-23 12:34:43,194 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 12:34:43,196 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 12:36:01,656 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 12:36:01,750 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 12:36:01,750 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 12:36:01,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:36:01 BoogieIcfgContainer [2021-11-23 12:36:01,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 12:36:01,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 12:36:01,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 12:36:01,773 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 12:36:01,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:34:26" (1/3) ... [2021-11-23 12:36:01,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d6bb0fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:36:01, skipping insertion in model container [2021-11-23 12:36:01,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:35" (2/3) ... [2021-11-23 12:36:01,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d6bb0fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:36:01, skipping insertion in model container [2021-11-23 12:36:01,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:36:01" (3/3) ... [2021-11-23 12:36:01,777 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 [2021-11-23 12:36:01,784 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 12:36:01,785 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 67 error locations. [2021-11-23 12:36:01,906 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 12:36:01,914 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 [2021-11-23 12:36:01,915 INFO L340 AbstractCegarLoop]: Starting to check reachability of 67 error locations. [2021-11-23 12:36:02,169 INFO L276 IsEmpty]: Start isEmpty. Operand has 11658 states, 11456 states have (on average 1.4658694134078212) internal successors, (16793), 11529 states have internal predecessors, (16793), 104 states have call successors, (104), 30 states have call predecessors, (104), 30 states have return successors, (104), 101 states have call predecessors, (104), 104 states have call successors, (104) [2021-11-23 12:36:02,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 12:36:02,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:36:02,187 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] [2021-11-23 12:36:02,189 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [vmci_guest_remove_deviceErr0ASSERT_VIOLATIONERROR_FUNCTION, vmci_guest_remove_deviceErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 64 more)] === [2021-11-23 12:36:02,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:36:02,196 INFO L85 PathProgramCache]: Analyzing trace with hash -370560647, now seen corresponding path program 1 times [2021-11-23 12:36:02,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:36:02,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036230673] [2021-11-23 12:36:02,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:36:02,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:36:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:36:03,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:36:03,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:36:03,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036230673] [2021-11-23 12:36:03,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036230673] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:36:03,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:36:03,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 12:36:03,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478423293] [2021-11-23 12:36:03,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:36:03,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:36:03,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:36:03,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:36:03,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:36:03,506 INFO L87 Difference]: Start difference. First operand has 11658 states, 11456 states have (on average 1.4658694134078212) internal successors, (16793), 11529 states have internal predecessors, (16793), 104 states have call successors, (104), 30 states have call predecessors, (104), 30 states have return successors, (104), 101 states have call predecessors, (104), 104 states have call successors, (104) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:36:04,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:36:04,431 INFO L93 Difference]: Finished difference Result 23246 states and 34037 transitions. [2021-11-23 12:36:04,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:36:04,435 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-23 12:36:04,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:36:04,571 INFO L225 Difference]: With dead ends: 23246 [2021-11-23 12:36:04,580 INFO L226 Difference]: Without dead ends: 11586 [2021-11-23 12:36:04,641 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 [2021-11-23 12:36:04,645 INFO L933 BasicCegarLoop]: 16701 mSDtfsCounter, 2 mSDsluCounter, 16699 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 33400 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 12:36:04,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 33400 Invalid, 7 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:36:04,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11586 states. [2021-11-23 12:36:05,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11586 to 11584. [2021-11-23 12:36:05,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11584 states, 11383 states have (on average 1.4482122463322498) internal successors, (16485), 11455 states have internal predecessors, (16485), 104 states have call successors, (104), 30 states have call predecessors, (104), 30 states have return successors, (104), 101 states have call predecessors, (104), 104 states have call successors, (104) [2021-11-23 12:36:05,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11584 states to 11584 states and 16693 transitions. [2021-11-23 12:36:05,266 INFO L78 Accepts]: Start accepts. Automaton has 11584 states and 16693 transitions. Word has length 26 [2021-11-23 12:36:05,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:36:05,267 INFO L470 AbstractCegarLoop]: Abstraction has 11584 states and 16693 transitions. [2021-11-23 12:36:05,268 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:36:05,270 INFO L276 IsEmpty]: Start isEmpty. Operand 11584 states and 16693 transitions. [2021-11-23 12:36:05,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 12:36:05,278 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:36:05,278 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] [2021-11-23 12:36:05,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 12:36:05,279 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [vmci_guest_remove_deviceErr0ASSERT_VIOLATIONERROR_FUNCTION, vmci_guest_remove_deviceErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 64 more)] === [2021-11-23 12:36:05,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:36:05,280 INFO L85 PathProgramCache]: Analyzing trace with hash -911319470, now seen corresponding path program 1 times [2021-11-23 12:36:05,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:36:05,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197907444] [2021-11-23 12:36:05,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:36:05,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:36:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:36:06,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:36:06,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:36:06,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197907444] [2021-11-23 12:36:06,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197907444] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:36:06,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:36:06,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 12:36:06,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924073052] [2021-11-23 12:36:06,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:36:06,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:36:06,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:36:06,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:36:06,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:36:06,033 INFO L87 Difference]: Start difference. First operand 11584 states and 16693 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:36:07,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:36:07,415 INFO L93 Difference]: Finished difference Result 34431 states and 49664 transitions. [2021-11-23 12:36:07,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:36:07,416 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-23 12:36:07,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:36:07,608 INFO L225 Difference]: With dead ends: 34431 [2021-11-23 12:36:07,609 INFO L226 Difference]: Without dead ends: 22853 [2021-11-23 12:36:07,651 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 [2021-11-23 12:36:07,652 INFO L933 BasicCegarLoop]: 16791 mSDtfsCounter, 16592 mSDsluCounter, 16359 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16592 SdHoareTripleChecker+Valid, 33150 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 12:36:07,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16592 Valid, 33150 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 12:36:07,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22853 states. [2021-11-23 12:36:08,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22853 to 22737. [2021-11-23 12:36:08,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22737 states, 22404 states have (on average 1.4508123549366185) internal successors, (32504), 22482 states have internal predecessors, (32504), 206 states have call successors, (206), 60 states have call predecessors, (206), 60 states have return successors, (206), 200 states have call predecessors, (206), 206 states have call successors, (206) [2021-11-23 12:36:08,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22737 states to 22737 states and 32916 transitions. [2021-11-23 12:36:08,905 INFO L78 Accepts]: Start accepts. Automaton has 22737 states and 32916 transitions. Word has length 26 [2021-11-23 12:36:08,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:36:08,907 INFO L470 AbstractCegarLoop]: Abstraction has 22737 states and 32916 transitions. [2021-11-23 12:36:08,907 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:36:08,907 INFO L276 IsEmpty]: Start isEmpty. Operand 22737 states and 32916 transitions. [2021-11-23 12:36:08,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 12:36:08,910 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:36:08,910 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] [2021-11-23 12:36:08,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 12:36:08,911 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting vmci_qp_guest_endpoints_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [vmci_guest_remove_deviceErr0ASSERT_VIOLATIONERROR_FUNCTION, vmci_guest_remove_deviceErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 64 more)] === [2021-11-23 12:36:08,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:36:08,911 INFO L85 PathProgramCache]: Analyzing trace with hash -127810569, now seen corresponding path program 1 times [2021-11-23 12:36:08,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:36:08,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526763941] [2021-11-23 12:36:08,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:36:08,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:36:09,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:36:09,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:36:09,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:36:09,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526763941] [2021-11-23 12:36:09,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526763941] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:36:09,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:36:09,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 12:36:09,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854065352] [2021-11-23 12:36:09,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:36:09,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:36:09,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:36:09,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:36:09,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:36:09,369 INFO L87 Difference]: Start difference. First operand 22737 states and 32916 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:36:11,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:36:11,124 INFO L93 Difference]: Finished difference Result 67619 states and 97978 transitions. [2021-11-23 12:36:11,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:36:11,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-23 12:36:11,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:36:11,336 INFO L225 Difference]: With dead ends: 67619 [2021-11-23 12:36:11,337 INFO L226 Difference]: Without dead ends: 44888 [2021-11-23 12:36:11,422 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 [2021-11-23 12:36:11,428 INFO L933 BasicCegarLoop]: 16966 mSDtfsCounter, 16294 mSDsluCounter, 16671 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16294 SdHoareTripleChecker+Valid, 33637 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 12:36:11,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16294 Valid, 33637 Invalid, 16 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 12:36:11,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44888 states. [2021-11-23 12:36:13,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44888 to 44717. [2021-11-23 12:36:13,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44717 states, 44120 states have (on average 1.4533998186763373) internal successors, (64124), 44211 states have internal predecessors, (64124), 410 states have call successors, (410), 120 states have call predecessors, (410), 120 states have return successors, (410), 397 states have call predecessors, (410), 410 states have call successors, (410) [2021-11-23 12:36:13,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44717 states to 44717 states and 64944 transitions. [2021-11-23 12:36:13,568 INFO L78 Accepts]: Start accepts. Automaton has 44717 states and 64944 transitions. Word has length 30 [2021-11-23 12:36:13,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:36:13,568 INFO L470 AbstractCegarLoop]: Abstraction has 44717 states and 64944 transitions. [2021-11-23 12:36:13,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:36:13,569 INFO L276 IsEmpty]: Start isEmpty. Operand 44717 states and 64944 transitions. [2021-11-23 12:36:13,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 12:36:13,570 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:36:13,571 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] [2021-11-23 12:36:13,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 12:36:13,572 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [vmci_guest_remove_deviceErr0ASSERT_VIOLATIONERROR_FUNCTION, vmci_guest_remove_deviceErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 64 more)] === [2021-11-23 12:36:13,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:36:13,573 INFO L85 PathProgramCache]: Analyzing trace with hash 268955378, now seen corresponding path program 1 times [2021-11-23 12:36:13,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:36:13,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636195062] [2021-11-23 12:36:13,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:36:13,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:36:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:36:14,305 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:36:14,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:36:14,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636195062] [2021-11-23 12:36:14,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636195062] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 12:36:14,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245103761] [2021-11-23 12:36:14,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:36:14,314 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:36:14,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:36:14,316 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:36:14,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 12:36:17,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:36:17,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 4831 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 12:36:17,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:36:17,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 12:36:17,238 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 12:36:17,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245103761] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:36:17,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 12:36:17,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-23 12:36:17,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158260371] [2021-11-23 12:36:17,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:36:17,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:36:17,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:36:17,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:36:17,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:36:17,241 INFO L87 Difference]: Start difference. First operand 44717 states and 64944 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:36:18,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:36:18,570 INFO L93 Difference]: Finished difference Result 44717 states and 64944 transitions. [2021-11-23 12:36:18,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:36:18,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-23 12:36:18,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:36:18,766 INFO L225 Difference]: With dead ends: 44717 [2021-11-23 12:36:18,767 INFO L226 Difference]: Without dead ends: 44715 [2021-11-23 12:36:18,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:36:18,790 INFO L933 BasicCegarLoop]: 16689 mSDtfsCounter, 16663 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16663 SdHoareTripleChecker+Valid, 16689 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 12:36:18,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16663 Valid, 16689 Invalid, 1 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:36:18,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44715 states. [2021-11-23 12:36:20,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44715 to 44715. [2021-11-23 12:36:20,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44715 states, 44119 states have (on average 1.4533874294521634) internal successors, (64122), 44209 states have internal predecessors, (64122), 410 states have call successors, (410), 120 states have call predecessors, (410), 120 states have return successors, (410), 397 states have call predecessors, (410), 410 states have call successors, (410) [2021-11-23 12:36:20,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44715 states to 44715 states and 64942 transitions. [2021-11-23 12:36:20,754 INFO L78 Accepts]: Start accepts. Automaton has 44715 states and 64942 transitions. Word has length 29 [2021-11-23 12:36:20,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:36:20,755 INFO L470 AbstractCegarLoop]: Abstraction has 44715 states and 64942 transitions. [2021-11-23 12:36:20,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:36:20,756 INFO L276 IsEmpty]: Start isEmpty. Operand 44715 states and 64942 transitions. [2021-11-23 12:36:20,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 12:36:20,758 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:36:20,759 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] [2021-11-23 12:36:20,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 12:36:20,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:36:20,973 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION === [vmci_guest_remove_deviceErr0ASSERT_VIOLATIONERROR_FUNCTION, vmci_guest_remove_deviceErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 64 more)] === [2021-11-23 12:36:20,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:36:20,974 INFO L85 PathProgramCache]: Analyzing trace with hash -252270688, now seen corresponding path program 1 times [2021-11-23 12:36:20,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:36:20,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531235384] [2021-11-23 12:36:20,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:36:20,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:36:21,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:36:21,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:36:21,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:36:21,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531235384] [2021-11-23 12:36:21,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531235384] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 12:36:21,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645901696] [2021-11-23 12:36:21,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:36:21,407 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:36:21,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:36:21,408 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:36:21,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 12:36:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:36:24,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 4833 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 12:36:24,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:36:24,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 12:36:24,673 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 12:36:24,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645901696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:36:24,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 12:36:24,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-23 12:36:24,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830079750] [2021-11-23 12:36:24,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:36:24,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:36:24,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:36:24,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:36:24,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:36:24,676 INFO L87 Difference]: Start difference. First operand 44715 states and 64942 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:36:25,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:36:25,797 INFO L93 Difference]: Finished difference Result 44715 states and 64942 transitions. [2021-11-23 12:36:25,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:36:25,798 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-23 12:36:25,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:36:26,005 INFO L225 Difference]: With dead ends: 44715 [2021-11-23 12:36:26,005 INFO L226 Difference]: Without dead ends: 44713 [2021-11-23 12:36:26,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:36:26,030 INFO L933 BasicCegarLoop]: 16687 mSDtfsCounter, 16660 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16660 SdHoareTripleChecker+Valid, 16687 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 [2021-11-23 12:36:26,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16660 Valid, 16687 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:36:26,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44713 states. [2021-11-23 12:36:27,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44713 to 44713. [2021-11-23 12:36:27,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44713 states, 44118 states have (on average 1.4533750396663494) internal successors, (64120), 44207 states have internal predecessors, (64120), 410 states have call successors, (410), 120 states have call predecessors, (410), 120 states have return successors, (410), 397 states have call predecessors, (410), 410 states have call successors, (410) [2021-11-23 12:36:28,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44713 states to 44713 states and 64940 transitions. [2021-11-23 12:36:28,067 INFO L78 Accepts]: Start accepts. Automaton has 44713 states and 64940 transitions. Word has length 30 [2021-11-23 12:36:28,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:36:28,068 INFO L470 AbstractCegarLoop]: Abstraction has 44713 states and 64940 transitions. [2021-11-23 12:36:28,068 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:36:28,069 INFO L276 IsEmpty]: Start isEmpty. Operand 44713 states and 64940 transitions. [2021-11-23 12:36:28,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 12:36:28,072 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:36:28,072 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] [2021-11-23 12:36:28,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 12:36:28,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:36:28,285 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION === [vmci_guest_remove_deviceErr0ASSERT_VIOLATIONERROR_FUNCTION, vmci_guest_remove_deviceErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 64 more)] === [2021-11-23 12:36:28,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:36:28,286 INFO L85 PathProgramCache]: Analyzing trace with hash 769590461, now seen corresponding path program 1 times [2021-11-23 12:36:28,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:36:28,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860175606] [2021-11-23 12:36:28,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:36:28,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:36:28,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:36:28,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:36:28,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:36:28,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860175606] [2021-11-23 12:36:28,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860175606] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 12:36:28,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679601805] [2021-11-23 12:36:28,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:36:28,679 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:36:28,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:36:28,681 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:36:28,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 12:36:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:36:31,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 4835 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 12:36:31,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:36:31,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 12:36:31,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 12:36:31,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679601805] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:36:31,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 12:36:31,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-23 12:36:31,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373136207] [2021-11-23 12:36:31,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:36:31,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:36:31,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:36:31,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:36:31,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:36:31,765 INFO L87 Difference]: Start difference. First operand 44713 states and 64940 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:36:33,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:36:33,216 INFO L93 Difference]: Finished difference Result 54885 states and 79562 transitions. [2021-11-23 12:36:33,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:36:33,217 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-23 12:36:33,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:36:33,435 INFO L225 Difference]: With dead ends: 54885 [2021-11-23 12:36:33,435 INFO L226 Difference]: Without dead ends: 54879 [2021-11-23 12:36:33,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:36:33,464 INFO L933 BasicCegarLoop]: 16764 mSDtfsCounter, 15993 mSDsluCounter, 4321 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15993 SdHoareTripleChecker+Valid, 21085 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 12:36:33,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15993 Valid, 21085 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:36:33,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54879 states. [2021-11-23 12:36:35,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54879 to 54843. [2021-11-23 12:36:35,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54843 states, 53923 states have (on average 1.4519963651873968) internal successors, (78296), 54033 states have internal predecessors, (78296), 618 states have call successors, (618), 240 states have call predecessors, (618), 240 states have return successors, (618), 593 states have call predecessors, (618), 618 states have call successors, (618) [2021-11-23 12:36:35,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54843 states to 54843 states and 79532 transitions. [2021-11-23 12:36:35,640 INFO L78 Accepts]: Start accepts. Automaton has 54843 states and 79532 transitions. Word has length 31 [2021-11-23 12:36:35,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:36:35,641 INFO L470 AbstractCegarLoop]: Abstraction has 54843 states and 79532 transitions. [2021-11-23 12:36:35,641 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:36:35,642 INFO L276 IsEmpty]: Start isEmpty. Operand 54843 states and 79532 transitions. [2021-11-23 12:36:35,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 12:36:35,643 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:36:35,643 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] [2021-11-23 12:36:35,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 12:36:35,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:36:35,869 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION === [vmci_guest_remove_deviceErr0ASSERT_VIOLATIONERROR_FUNCTION, vmci_guest_remove_deviceErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 64 more)] === [2021-11-23 12:36:35,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:36:35,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1912452277, now seen corresponding path program 1 times [2021-11-23 12:36:35,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:36:35,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357459365] [2021-11-23 12:36:35,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:36:35,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:36:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:36:36,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:36:36,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:36:36,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357459365] [2021-11-23 12:36:36,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357459365] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 12:36:36,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941284765] [2021-11-23 12:36:36,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:36:36,616 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:36:36,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:36:36,617 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:36:36,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 12:36:38,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:36:38,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 4837 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 12:36:38,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:36:39,051 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 12:36:39,051 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 12:36:39,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941284765] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:36:39,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 12:36:39,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-23 12:36:39,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598510697] [2021-11-23 12:36:39,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:36:39,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:36:39,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:36:39,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:36:39,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:36:39,054 INFO L87 Difference]: Start difference. First operand 54843 states and 79532 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:36:40,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:36:40,560 INFO L93 Difference]: Finished difference Result 54843 states and 79532 transitions. [2021-11-23 12:36:40,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:36:40,561 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-23 12:36:40,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:36:40,910 INFO L225 Difference]: With dead ends: 54843 [2021-11-23 12:36:40,910 INFO L226 Difference]: Without dead ends: 54841 [2021-11-23 12:36:40,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:36:40,926 INFO L933 BasicCegarLoop]: 16679 mSDtfsCounter, 16650 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16650 SdHoareTripleChecker+Valid, 16679 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 [2021-11-23 12:36:40,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16650 Valid, 16679 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:36:40,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54841 states. [2021-11-23 12:36:42,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54841 to 54841. [2021-11-23 12:36:43,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54841 states, 53922 states have (on average 1.4519862022921999) internal successors, (78294), 54031 states have internal predecessors, (78294), 618 states have call successors, (618), 240 states have call predecessors, (618), 240 states have return successors, (618), 593 states have call predecessors, (618), 618 states have call successors, (618) [2021-11-23 12:36:43,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54841 states to 54841 states and 79530 transitions. [2021-11-23 12:36:43,494 INFO L78 Accepts]: Start accepts. Automaton has 54841 states and 79530 transitions. Word has length 32 [2021-11-23 12:36:43,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:36:43,494 INFO L470 AbstractCegarLoop]: Abstraction has 54841 states and 79530 transitions. [2021-11-23 12:36:43,494 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:36:43,494 INFO L276 IsEmpty]: Start isEmpty. Operand 54841 states and 79530 transitions. [2021-11-23 12:36:43,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 12:36:43,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:36:43,496 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] [2021-11-23 12:36:43,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 12:36:43,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:36:43,703 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION === [vmci_guest_remove_deviceErr0ASSERT_VIOLATIONERROR_FUNCTION, vmci_guest_remove_deviceErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 64 more)] === [2021-11-23 12:36:43,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:36:43,703 INFO L85 PathProgramCache]: Analyzing trace with hash 843568776, now seen corresponding path program 1 times [2021-11-23 12:36:43,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:36:43,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852970285] [2021-11-23 12:36:43,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:36:43,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:36:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:36:44,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:36:44,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:36:44,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852970285] [2021-11-23 12:36:44,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852970285] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 12:36:44,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866882867] [2021-11-23 12:36:44,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:36:44,032 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:36:44,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:36:44,034 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:36:44,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 12:36:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:36:46,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 4839 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 12:36:46,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:36:46,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 12:36:46,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 12:36:46,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866882867] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:36:46,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 12:36:46,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-23 12:36:46,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009713173] [2021-11-23 12:36:46,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:36:46,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:36:46,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:36:46,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:36:46,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:36:46,569 INFO L87 Difference]: Start difference. First operand 54841 states and 79530 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:36:49,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:36:49,295 INFO L93 Difference]: Finished difference Result 127192 states and 185722 transitions. [2021-11-23 12:36:49,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:36:49,299 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-23 12:36:49,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:36:49,601 INFO L225 Difference]: With dead ends: 127192 [2021-11-23 12:36:49,601 INFO L226 Difference]: Without dead ends: 72357 [2021-11-23 12:36:50,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:36:50,185 INFO L933 BasicCegarLoop]: 17524 mSDtfsCounter, 11872 mSDsluCounter, 8163 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11872 SdHoareTripleChecker+Valid, 25687 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 12:36:50,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11872 Valid, 25687 Invalid, 127 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [46 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 12:36:50,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72357 states. [2021-11-23 12:36:52,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72357 to 71359. [2021-11-23 12:36:52,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71359 states, 69876 states have (on average 1.4512708226000344) internal successors, (101409), 69987 states have internal predecessors, (101409), 978 states have call successors, (978), 432 states have call predecessors, (978), 456 states have return successors, (1410), 971 states have call predecessors, (1410), 978 states have call successors, (1410) [2021-11-23 12:36:53,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71359 states to 71359 states and 103797 transitions. [2021-11-23 12:36:53,271 INFO L78 Accepts]: Start accepts. Automaton has 71359 states and 103797 transitions. Word has length 33 [2021-11-23 12:36:53,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:36:53,272 INFO L470 AbstractCegarLoop]: Abstraction has 71359 states and 103797 transitions. [2021-11-23 12:36:53,272 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:36:53,272 INFO L276 IsEmpty]: Start isEmpty. Operand 71359 states and 103797 transitions. [2021-11-23 12:36:53,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 12:36:53,274 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:36:53,274 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] [2021-11-23 12:36:53,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 12:36:53,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:36:53,485 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [vmci_guest_remove_deviceErr0ASSERT_VIOLATIONERROR_FUNCTION, vmci_guest_remove_deviceErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 64 more)] === [2021-11-23 12:36:53,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:36:53,486 INFO L85 PathProgramCache]: Analyzing trace with hash 380875510, now seen corresponding path program 1 times [2021-11-23 12:36:53,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:36:53,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890329264] [2021-11-23 12:36:53,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:36:53,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:36:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:36:53,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:36:53,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:36:53,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890329264] [2021-11-23 12:36:53,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890329264] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 12:36:53,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510574141] [2021-11-23 12:36:53,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:36:53,869 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:36:53,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:36:53,885 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:36:53,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f433dc-0716-4628-aa53-9b7eafdfcea0/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 12:36:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:36:55,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 4841 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 12:36:55,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:36:56,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 12:36:56,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 12:36:56,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510574141] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:36:56,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 12:36:56,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-23 12:36:56,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240678486] [2021-11-23 12:36:56,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:36:56,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:36:56,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:36:56,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:36:56,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:36:56,108 INFO L87 Difference]: Start difference. First operand 71359 states and 103797 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)