./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 e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/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_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8 --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:28:56,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:28:56,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:28:56,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:28:56,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:28:56,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:28:56,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:28:56,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:28:56,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:28:56,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:28:56,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:28:56,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:28:56,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:28:56,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:28:56,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:28:56,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:28:56,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:28:56,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:28:56,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:28:56,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:28:56,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:28:56,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:28:56,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:28:56,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:28:56,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:28:56,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:28:56,875 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:28:56,876 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:28:56,877 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:28:56,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:28:56,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:28:56,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:28:56,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:28:56,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:28:56,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:28:56,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:28:56,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:28:56,889 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:28:56,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:28:56,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:28:56,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:28:56,892 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 11:28:56,942 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:28:56,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:28:56,943 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:28:56,943 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:28:56,944 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:28:56,945 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:28:56,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:28:56,946 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:28:56,947 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:28:56,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:28:56,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:28:56,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:28:56,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:28:56,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:28:56,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:28:56,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:28:56,950 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:28:56,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:28:56,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:28:56,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:28:56,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:28:56,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:28:56,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:28:56,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:28:56,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:28:56,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:28:56,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:28:56,955 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:28:56,955 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:28:56,955 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:28:56,956 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_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d123e3c2a314a098b4e7a140b822a7b44f2ae282ca90c74ec5605a44f397143 [2022-11-16 11:28:57,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:28:57,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:28:57,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:28:57,341 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:28:57,342 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:28:57,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--misc--vmw_vmci--vmw_vmci.ko-entry_point.cil.out.i [2022-11-16 11:28:57,421 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/data/4f5c595a0/790abf1423c74a819ed9d79e60bbd7a6/FLAGd6e52b3f6 [2022-11-16 11:28:58,694 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:28:58,694 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--misc--vmw_vmci--vmw_vmci.ko-entry_point.cil.out.i [2022-11-16 11:28:58,778 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/data/4f5c595a0/790abf1423c74a819ed9d79e60bbd7a6/FLAGd6e52b3f6 [2022-11-16 11:28:58,905 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/data/4f5c595a0/790abf1423c74a819ed9d79e60bbd7a6 [2022-11-16 11:28:58,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:28:58,909 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:28:58,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:28:58,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:28:58,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:28:58,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:28:58" (1/1) ... [2022-11-16 11:28:58,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41d3f8ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:28:58, skipping insertion in model container [2022-11-16 11:28:58,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:28:58" (1/1) ... [2022-11-16 11:28:58,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:28:59,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:29:04,485 WARN L229 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_50cf8339-4fbf-486d-971a-85645d0c3c14/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--misc--vmw_vmci--vmw_vmci.ko-entry_point.cil.out.i[490207,490220] [2022-11-16 11:29:04,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:29:05,034 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:29:05,666 WARN L229 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_50cf8339-4fbf-486d-971a-85645d0c3c14/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--misc--vmw_vmci--vmw_vmci.ko-entry_point.cil.out.i[490207,490220] [2022-11-16 11:29:05,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:29:06,082 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:29:06,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:06 WrapperNode [2022-11-16 11:29:06,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:29:06,086 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:29:06,086 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:29:06,087 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:29:06,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:06" (1/1) ... [2022-11-16 11:29:06,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:06" (1/1) ... [2022-11-16 11:29:06,696 INFO L138 Inliner]: procedures = 713, calls = 6159, calls flagged for inlining = 240, calls inlined = 191, statements flattened = 8992 [2022-11-16 11:29:06,697 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:29:06,698 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:29:06,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:29:06,699 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:29:06,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:06" (1/1) ... [2022-11-16 11:29:06,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:06" (1/1) ... [2022-11-16 11:29:06,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:06" (1/1) ... [2022-11-16 11:29:06,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:06" (1/1) ... [2022-11-16 11:29:06,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:06" (1/1) ... [2022-11-16 11:29:07,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:06" (1/1) ... [2022-11-16 11:29:07,201 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:06" (1/1) ... [2022-11-16 11:29:07,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:06" (1/1) ... [2022-11-16 11:29:07,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:29:07,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:29:07,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:29:07,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:29:07,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:06" (1/1) ... [2022-11-16 11:29:07,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:29:07,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:29:07,353 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:29:07,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:29:07,411 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-16 11:29:07,412 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-16 11:29:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_msix_exact [2022-11-16 11:29:07,412 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_msix_exact [2022-11-16 11:29:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_signal_notify [2022-11-16 11:29:07,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_signal_notify [2022-11-16 11:29:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_send [2022-11-16 11:29:07,413 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_send [2022-11-16 11:29:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_exists [2022-11-16 11:29:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_exists [2022-11-16 11:29:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_guest_code_active [2022-11-16 11:29:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_guest_code_active [2022-11-16 11:29:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_subscriber_mutex [2022-11-16 11:29:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_subscriber_mutex [2022-11-16 11:29:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_put [2022-11-16 11:29:07,415 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_put [2022-11-16 11:29:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-16 11:29:07,415 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-16 11:29:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_open [2022-11-16 11:29:07,416 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_open [2022-11-16 11:29:07,416 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_unregister_user_memory [2022-11-16 11:29:07,416 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_unregister_user_memory [2022-11-16 11:29:07,416 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_add_notification [2022-11-16 11:29:07,417 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_add_notification [2022-11-16 11:29:07,417 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_unlocked_ioctl [2022-11-16 11:29:07,417 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_unlocked_ioctl [2022-11-16 11:29:07,417 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-16 11:29:07,417 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-16 11:29:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 11:29:07,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 11:29:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_get_id [2022-11-16 11:29:07,418 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_get_id [2022-11-16 11:29:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-16 11:29:07,419 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-16 11:29:07,419 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_has_entry [2022-11-16 11:29:07,419 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_has_entry [2022-11-16 11:29:07,419 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_destroy [2022-11-16 11:29:07,419 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_destroy [2022-11-16 11:29:07,420 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_send_datagram [2022-11-16 11:29:07,420 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_send_datagram [2022-11-16 11:29:07,420 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-16 11:29:07,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-16 11:29:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_get [2022-11-16 11:29:07,421 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_get [2022-11-16 11:29:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_get_entry [2022-11-16 11:29:07,421 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_get_entry [2022-11-16 11:29:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-11-16 11:29:07,422 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-11-16 11:29:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure qp_acquire_queue_mutex [2022-11-16 11:29:07,422 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_acquire_queue_mutex [2022-11-16 11:29:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_get_context_id [2022-11-16 11:29:07,422 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_get_context_id [2022-11-16 11:29:07,423 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_map_queues [2022-11-16 11:29:07,423 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_map_queues [2022-11-16 11:29:07,423 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_add [2022-11-16 11:29:07,423 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_add [2022-11-16 11:29:07,423 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-16 11:29:07,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-16 11:29:07,424 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 11:29:07,424 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 11:29:07,424 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock___1 [2022-11-16 11:29:07,425 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock___1 [2022-11-16 11:29:07,425 INFO L130 BoogieDeclarations]: Found specification of procedure no_printk [2022-11-16 11:29:07,425 INFO L138 BoogieDeclarations]: Found implementation of procedure no_printk [2022-11-16 11:29:07,425 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_get_head [2022-11-16 11:29:07,425 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_get_head [2022-11-16 11:29:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure dbell_delayed_dispatch [2022-11-16 11:29:07,426 INFO L138 BoogieDeclarations]: Found implementation of procedure dbell_delayed_dispatch [2022-11-16 11:29:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2022-11-16 11:29:07,426 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2022-11-16 11:29:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_vmci_host_dev [2022-11-16 11:29:07,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_vmci_host_dev [2022-11-16 11:29:07,427 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-16 11:29:07,427 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-16 11:29:07,427 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-16 11:29:07,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-16 11:29:07,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-16 11:29:07,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_qp_list [2022-11-16 11:29:07,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_qp_list [2022-11-16 11:29:07,428 INFO L130 BoogieDeclarations]: Found specification of procedure dg_delayed_dispatch [2022-11-16 11:29:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_delayed_dispatch [2022-11-16 11:29:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:29:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-16 11:29:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-16 11:29:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-16 11:29:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-16 11:29:07,430 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-16 11:29:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-16 11:29:07,430 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-16 11:29:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-16 11:29:07,431 INFO L130 BoogieDeclarations]: Found specification of procedure dg_dispatch_as_host [2022-11-16 11:29:07,431 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_dispatch_as_host [2022-11-16 11:29:07,431 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-16 11:29:07,431 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-16 11:29:07,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 11:29:07,432 INFO L130 BoogieDeclarations]: Found specification of procedure qp_reset_saved_headers [2022-11-16 11:29:07,432 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_reset_saved_headers [2022-11-16 11:29:07,432 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_handle [2022-11-16 11:29:07,432 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_handle [2022-11-16 11:29:07,432 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_add_entry [2022-11-16 11:29:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_add_entry [2022-11-16 11:29:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_invalid [2022-11-16 11:29:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_invalid [2022-11-16 11:29:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_dispatch [2022-11-16 11:29:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_dispatch [2022-11-16 11:29:07,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 11:29:07,434 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-11-16 11:29:07,434 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-11-16 11:29:07,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_vmci_queue_kern_if [2022-11-16 11:29:07,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_vmci_queue_kern_if [2022-11-16 11:29:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:29:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure kmap [2022-11-16 11:29:07,435 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap [2022-11-16 11:29:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_find [2022-11-16 11:29:07,436 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_find [2022-11-16 11:29:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 11:29:07,436 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 11:29:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure __validate_creds [2022-11-16 11:29:07,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __validate_creds [2022-11-16 11:29:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2022-11-16 11:29:07,437 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2022-11-16 11:29:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_clear_notify_call [2022-11-16 11:29:07,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_clear_notify_call [2022-11-16 11:29:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-16 11:29:07,438 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-16 11:29:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure qp_notify_peer [2022-11-16 11:29:07,438 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_notify_peer [2022-11-16 11:29:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-16 11:29:07,438 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-16 11:29:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-16 11:29:07,439 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-16 11:29:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_unset_notify [2022-11-16 11:29:07,439 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_unset_notify [2022-11-16 11:29:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure __hlist_del [2022-11-16 11:29:07,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __hlist_del [2022-11-16 11:29:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_event_exit [2022-11-16 11:29:07,440 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_event_exit [2022-11-16 11:29:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_destroy [2022-11-16 11:29:07,441 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_destroy [2022-11-16 11:29:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure get_cred [2022-11-16 11:29:07,441 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cred [2022-11-16 11:29:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-16 11:29:07,441 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-16 11:29:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-11-16 11:29:07,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-11-16 11:29:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure qp_lock [2022-11-16 11:29:07,442 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_lock [2022-11-16 11:29:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-11-16 11:29:07,442 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-11-16 11:29:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_by_handle [2022-11-16 11:29:07,443 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_by_handle [2022-11-16 11:29:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-16 11:29:07,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-16 11:29:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure qp_notify_peer_local [2022-11-16 11:29:07,444 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_notify_peer_local [2022-11-16 11:29:07,444 INFO L130 BoogieDeclarations]: Found specification of procedure vunmap [2022-11-16 11:29:07,444 INFO L138 BoogieDeclarations]: Found implementation of procedure vunmap [2022-11-16 11:29:07,444 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_get_user_memory [2022-11-16 11:29:07,444 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_get_user_memory [2022-11-16 11:29:07,445 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_fire_notification [2022-11-16 11:29:07,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_fire_notification [2022-11-16 11:29:07,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:29:07,445 INFO L130 BoogieDeclarations]: Found specification of procedure qp_unlock [2022-11-16 11:29:07,445 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_unlock [2022-11-16 11:29:07,445 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_close [2022-11-16 11:29:07,446 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_close [2022-11-16 11:29:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:29:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_guest_probe_device [2022-11-16 11:29:07,446 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_guest_probe_device [2022-11-16 11:29:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_invalid___1 [2022-11-16 11:29:07,447 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_invalid___1 [2022-11-16 11:29:07,447 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_invalid___0 [2022-11-16 11:29:07,447 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_invalid___0 [2022-11-16 11:29:07,447 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_alloc_queue [2022-11-16 11:29:07,447 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_alloc_queue [2022-11-16 11:29:07,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:29:07,448 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-16 11:29:07,448 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_free_ctx [2022-11-16 11:29:07,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_free_ctx [2022-11-16 11:29:07,448 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 11:29:07,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 11:29:07,449 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_poll [2022-11-16 11:29:07,449 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_poll [2022-11-16 11:29:07,449 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-16 11:29:07,449 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-16 11:29:07,449 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-16 11:29:07,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-16 11:29:07,450 INFO L130 BoogieDeclarations]: Found specification of procedure qp_release_pages [2022-11-16 11:29:07,450 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_release_pages [2022-11-16 11:29:07,450 INFO L130 BoogieDeclarations]: Found specification of procedure qp_cleanup_queue_mutex [2022-11-16 11:29:07,450 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_cleanup_queue_mutex [2022-11-16 11:29:07,451 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_get_size [2022-11-16 11:29:07,451 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_get_size [2022-11-16 11:29:07,451 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch_hypercall [2022-11-16 11:29:07,451 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch_hypercall [2022-11-16 11:29:07,451 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-16 11:29:07,451 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-16 11:29:07,452 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-16 11:29:07,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-16 11:29:07,452 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_remove_entry [2022-11-16 11:29:07,452 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_remove_entry [2022-11-16 11:29:07,452 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-16 11:29:07,453 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-16 11:29:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_q_header_init [2022-11-16 11:29:07,453 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_q_header_init [2022-11-16 11:29:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add_rcu [2022-11-16 11:29:07,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add_rcu [2022-11-16 11:29:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_register_user_memory [2022-11-16 11:29:07,454 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_register_user_memory [2022-11-16 11:29:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-16 11:29:07,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-16 11:29:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch_guest_work [2022-11-16 11:29:07,455 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch_guest_work [2022-11-16 11:29:07,455 INFO L130 BoogieDeclarations]: Found specification of procedure drv_cp_harray_to_user [2022-11-16 11:29:07,455 INFO L138 BoogieDeclarations]: Found implementation of procedure drv_cp_harray_to_user [2022-11-16 11:29:07,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:29:07,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:29:07,456 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-16 11:29:07,456 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-16 11:29:07,456 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_remove_tail [2022-11-16 11:29:07,456 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_remove_tail [2022-11-16 11:29:07,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_subscriber_mutex [2022-11-16 11:29:07,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_subscriber_mutex [2022-11-16 11:29:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-11-16 11:29:07,457 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-11-16 11:29:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_supports_host_qp [2022-11-16 11:29:07,457 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_supports_host_qp [2022-11-16 11:29:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 11:29:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 11:29:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 11:29:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 11:29:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qp_broker_detach [2022-11-16 11:29:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qp_broker_detach [2022-11-16 11:29:07,459 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_enqueue_datagram [2022-11-16 11:29:07,459 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_enqueue_datagram [2022-11-16 11:29:07,459 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-16 11:29:07,459 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-16 11:29:07,459 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_unmap_queues [2022-11-16 11:29:07,459 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_unmap_queues [2022-11-16 11:29:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_rcu [2022-11-16 11:29:07,460 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_rcu [2022-11-16 11:29:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_qp_list [2022-11-16 11:29:07,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_qp_list [2022-11-16 11:29:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-16 11:29:07,461 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-16 11:29:07,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 11:29:07,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 11:29:07,461 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-16 11:29:07,461 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-16 11:29:07,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 11:29:07,462 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 11:29:07,462 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2022-11-16 11:29:07,462 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2022-11-16 11:29:07,462 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 11:29:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 11:29:07,463 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msix [2022-11-16 11:29:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msix [2022-11-16 11:29:07,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_vmci_queue_kern_if [2022-11-16 11:29:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_vmci_queue_kern_if [2022-11-16 11:29:07,464 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_notify_dbell [2022-11-16 11:29:07,464 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_notify_dbell [2022-11-16 11:29:07,464 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_append_entry [2022-11-16 11:29:07,464 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_append_entry [2022-11-16 11:29:07,464 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-16 11:29:07,465 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-16 11:29:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-16 11:29:07,465 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-16 11:29:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure qp_broker_handle_to_entry [2022-11-16 11:29:07,465 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_broker_handle_to_entry [2022-11-16 11:29:07,466 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qpair_detach [2022-11-16 11:29:07,466 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qpair_detach [2022-11-16 11:29:07,466 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-16 11:29:07,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-16 11:29:07,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:29:07,467 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-16 11:29:07,467 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-16 11:29:07,467 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_hash [2022-11-16 11:29:07,467 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_hash [2022-11-16 11:29:07,467 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_create [2022-11-16 11:29:07,468 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_create [2022-11-16 11:29:07,468 INFO L130 BoogieDeclarations]: Found specification of procedure event_find [2022-11-16 11:29:07,468 INFO L138 BoogieDeclarations]: Found implementation of procedure event_find [2022-11-16 11:29:07,468 INFO L130 BoogieDeclarations]: Found specification of procedure qp_broker_alloc [2022-11-16 11:29:07,468 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_broker_alloc [2022-11-16 11:29:07,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:29:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch_host_work [2022-11-16 11:29:07,469 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch_host_work [2022-11-16 11:29:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-16 11:29:07,469 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-16 11:29:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure hash_32 [2022-11-16 11:29:07,470 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_32 [2022-11-16 11:29:07,470 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail_rcu [2022-11-16 11:29:07,470 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail_rcu [2022-11-16 11:29:07,470 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock___1 [2022-11-16 11:29:07,470 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock___1 [2022-11-16 11:29:07,470 INFO L130 BoogieDeclarations]: Found specification of procedure qp_guest_endpoint_destroy [2022-11-16 11:29:07,471 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_guest_endpoint_destroy [2022-11-16 11:29:07,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 11:29:07,471 INFO L130 BoogieDeclarations]: Found specification of procedure dg_dispatch_as_guest [2022-11-16 11:29:07,471 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_dispatch_as_guest [2022-11-16 11:29:07,471 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-16 11:29:07,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-16 11:29:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-16 11:29:07,472 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-16 11:29:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-16 11:29:07,472 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-16 11:29:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_event_dispatch [2022-11-16 11:29:07,473 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_event_dispatch [2022-11-16 11:29:07,473 INFO L130 BoogieDeclarations]: Found specification of procedure qp_release_queue_mutex [2022-11-16 11:29:07,473 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_release_queue_mutex [2022-11-16 11:29:07,473 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-16 11:29:07,473 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-16 11:29:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_route [2022-11-16 11:29:07,474 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_route [2022-11-16 11:29:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure get_user_pages_fast [2022-11-16 11:29:07,474 INFO L138 BoogieDeclarations]: Found implementation of procedure get_user_pages_fast [2022-11-16 11:29:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure qp_free_queue [2022-11-16 11:29:07,475 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_free_queue [2022-11-16 11:29:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_free_queue [2022-11-16 11:29:07,475 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_free_queue [2022-11-16 11:29:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-16 11:29:07,475 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-16 11:29:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure atomic64_set [2022-11-16 11:29:07,476 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic64_set [2022-11-16 11:29:07,476 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_get_priv_flags [2022-11-16 11:29:07,476 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_get_priv_flags [2022-11-16 11:29:07,476 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_qp_exists [2022-11-16 11:29:07,476 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_qp_exists [2022-11-16 11:29:07,477 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu [2022-11-16 11:29:07,477 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu [2022-11-16 11:29:07,477 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_remove [2022-11-16 11:29:07,477 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_remove [2022-11-16 11:29:07,477 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 11:29:07,477 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 11:29:07,478 INFO L130 BoogieDeclarations]: Found specification of procedure qp_init_queue_mutex [2022-11-16 11:29:07,478 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_init_queue_mutex [2022-11-16 11:29:07,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:29:07,478 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_context_get_priv_flags [2022-11-16 11:29:07,478 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_context_get_priv_flags [2022-11-16 11:29:07,479 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_2 [2022-11-16 11:29:07,479 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_2 [2022-11-16 11:29:07,479 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-16 11:29:07,479 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-16 11:29:07,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 11:29:07,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 11:29:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure put_cred [2022-11-16 11:29:07,480 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cred [2022-11-16 11:29:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work___0 [2022-11-16 11:29:07,480 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work___0 [2022-11-16 11:29:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-11-16 11:29:07,481 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-11-16 11:29:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-16 11:29:07,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-16 11:29:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qp_guest_endpoints_exit [2022-11-16 11:29:07,481 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qp_guest_endpoints_exit [2022-11-16 11:29:07,482 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_HLIST_NODE [2022-11-16 11:29:07,482 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_HLIST_NODE [2022-11-16 11:29:07,482 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-16 11:29:07,482 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-16 11:29:07,482 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-16 11:29:07,482 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-16 11:29:07,483 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_equal [2022-11-16 11:29:07,483 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_equal [2022-11-16 11:29:07,483 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_qp_destroy [2022-11-16 11:29:07,483 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_qp_destroy [2022-11-16 11:29:07,483 INFO L130 BoogieDeclarations]: Found specification of procedure qp_guest_handle_to_entry [2022-11-16 11:29:07,484 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_guest_handle_to_entry [2022-11-16 11:29:07,484 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-16 11:29:07,484 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-16 11:29:07,484 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch [2022-11-16 11:29:07,484 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch [2022-11-16 11:29:07,484 INFO L130 BoogieDeclarations]: Found specification of procedure handle_arr_calc_size [2022-11-16 11:29:07,485 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_arr_calc_size [2022-11-16 11:29:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2022-11-16 11:29:07,485 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2022-11-16 11:29:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_unhashed [2022-11-16 11:29:07,485 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_unhashed [2022-11-16 11:29:07,486 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qp_broker_alloc [2022-11-16 11:29:07,486 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qp_broker_alloc [2022-11-16 11:29:07,486 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-16 11:29:07,486 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-16 11:29:07,486 INFO L130 BoogieDeclarations]: Found specification of procedure kunmap [2022-11-16 11:29:07,487 INFO L138 BoogieDeclarations]: Found implementation of procedure kunmap [2022-11-16 11:29:07,487 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-16 11:29:07,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-16 11:29:07,487 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-16 11:29:07,487 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-16 11:29:07,488 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2022-11-16 11:29:07,488 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2022-11-16 11:29:07,488 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_get [2022-11-16 11:29:07,488 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_get [2022-11-16 11:29:07,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_vmci_host_dev [2022-11-16 11:29:07,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_vmci_host_dev [2022-11-16 11:29:07,489 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-16 11:29:07,489 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-16 11:29:07,489 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2022-11-16 11:29:07,489 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2022-11-16 11:29:07,490 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_remove_entry [2022-11-16 11:29:07,490 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_remove_entry [2022-11-16 11:29:07,490 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_event_unsubscribe [2022-11-16 11:29:07,490 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_event_unsubscribe [2022-11-16 11:29:07,490 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_deny_interaction [2022-11-16 11:29:07,491 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_deny_interaction [2022-11-16 11:29:07,491 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_guest_remove_device [2022-11-16 11:29:07,491 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_guest_remove_device [2022-11-16 11:29:07,491 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_qp_create [2022-11-16 11:29:07,491 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_qp_create [2022-11-16 11:29:07,491 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_code_active [2022-11-16 11:29:07,492 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_code_active [2022-11-16 11:29:07,492 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-16 11:29:07,492 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-16 11:29:07,492 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-16 11:29:07,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-16 11:29:07,492 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-16 11:29:07,493 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-16 11:29:07,493 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-16 11:29:07,493 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-16 11:29:07,493 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_lookup [2022-11-16 11:29:07,493 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_lookup [2022-11-16 11:29:07,494 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-16 11:29:07,494 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-16 11:29:07,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:29:07,494 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_create [2022-11-16 11:29:07,494 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_create [2022-11-16 11:29:07,495 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_put [2022-11-16 11:29:07,495 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_put [2022-11-16 11:29:09,113 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:29:09,119 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:29:09,769 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 11:29:28,034 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:29:28,072 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:29:28,072 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:29:28,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:29:28 BoogieIcfgContainer [2022-11-16 11:29:28,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:29:28,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:29:28,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:29:28,087 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:29:28,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:28:58" (1/3) ... [2022-11-16 11:29:28,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18f2f671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:29:28, skipping insertion in model container [2022-11-16 11:29:28,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:06" (2/3) ... [2022-11-16 11:29:28,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18f2f671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:29:28, skipping insertion in model container [2022-11-16 11:29:28,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:29:28" (3/3) ... [2022-11-16 11:29:28,091 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--misc--vmw_vmci--vmw_vmci.ko-entry_point.cil.out.i [2022-11-16 11:29:28,113 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:29:28,113 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:29:28,238 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:29:28,244 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5c42fea6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:29:28,245 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:29:28,260 INFO L276 IsEmpty]: Start isEmpty. Operand has 3348 states, 2300 states have (on average 1.366086956521739) internal successors, (3142), 2367 states have internal predecessors, (3142), 843 states have call successors, (843), 204 states have call predecessors, (843), 203 states have return successors, (839), 833 states have call predecessors, (839), 839 states have call successors, (839) [2022-11-16 11:29:28,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-16 11:29:28,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:28,274 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:28,275 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:29:28,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:28,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1440739422, now seen corresponding path program 1 times [2022-11-16 11:29:28,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:28,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519857569] [2022-11-16 11:29:28,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:28,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:29,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:29,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:29,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519857569] [2022-11-16 11:29:29,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519857569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:29,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:29,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:29:29,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064923041] [2022-11-16 11:29:29,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:29,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:29:29,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:29,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:29:29,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:29:29,565 INFO L87 Difference]: Start difference. First operand has 3348 states, 2300 states have (on average 1.366086956521739) internal successors, (3142), 2367 states have internal predecessors, (3142), 843 states have call successors, (843), 204 states have call predecessors, (843), 203 states have return successors, (839), 833 states have call predecessors, (839), 839 states have call successors, (839) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:30,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:30,001 INFO L93 Difference]: Finished difference Result 6691 states and 9827 transitions. [2022-11-16 11:29:30,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:29:30,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-16 11:29:30,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:30,056 INFO L225 Difference]: With dead ends: 6691 [2022-11-16 11:29:30,056 INFO L226 Difference]: Without dead ends: 3340 [2022-11-16 11:29:30,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:29:30,089 INFO L413 NwaCegarLoop]: 4803 mSDtfsCounter, 1 mSDsluCounter, 4799 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 9602 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:30,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 9602 Invalid, 6 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:29:30,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3340 states. [2022-11-16 11:29:30,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3340 to 3338. [2022-11-16 11:29:30,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3338 states, 2296 states have (on average 1.3628048780487805) internal successors, (3129), 2357 states have internal predecessors, (3129), 839 states have call successors, (839), 203 states have call predecessors, (839), 202 states have return successors, (824), 818 states have call predecessors, (824), 824 states have call successors, (824) [2022-11-16 11:29:30,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3338 states to 3338 states and 4792 transitions. [2022-11-16 11:29:30,417 INFO L78 Accepts]: Start accepts. Automaton has 3338 states and 4792 transitions. Word has length 27 [2022-11-16 11:29:30,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:30,418 INFO L495 AbstractCegarLoop]: Abstraction has 3338 states and 4792 transitions. [2022-11-16 11:29:30,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:30,419 INFO L276 IsEmpty]: Start isEmpty. Operand 3338 states and 4792 transitions. [2022-11-16 11:29:30,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-16 11:29:30,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:30,428 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:30,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:29:30,428 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:29:30,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:30,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1878750188, now seen corresponding path program 1 times [2022-11-16 11:29:30,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:30,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514527602] [2022-11-16 11:29:30,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:30,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:30,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:31,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 11:29:31,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:31,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:31,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:31,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514527602] [2022-11-16 11:29:31,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514527602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:31,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:31,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:29:31,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84308854] [2022-11-16 11:29:31,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:31,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:29:31,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:31,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:29:31,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:29:31,192 INFO L87 Difference]: Start difference. First operand 3338 states and 4792 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:29:44,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:44,596 INFO L93 Difference]: Finished difference Result 10159 states and 14675 transitions. [2022-11-16 11:29:44,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:29:44,597 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2022-11-16 11:29:44,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:44,653 INFO L225 Difference]: With dead ends: 10159 [2022-11-16 11:29:44,653 INFO L226 Difference]: Without dead ends: 6827 [2022-11-16 11:29:44,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:29:44,677 INFO L413 NwaCegarLoop]: 6555 mSDtfsCounter, 5424 mSDsluCounter, 6990 mSDsCounter, 0 mSdLazyCounter, 4630 mSolverCounterSat, 1531 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6012 SdHoareTripleChecker+Valid, 13545 SdHoareTripleChecker+Invalid, 6161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1531 IncrementalHoareTripleChecker+Valid, 4630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:44,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6012 Valid, 13545 Invalid, 6161 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1531 Valid, 4630 Invalid, 0 Unknown, 0 Unchecked, 12.6s Time] [2022-11-16 11:29:44,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6827 states. [2022-11-16 11:29:45,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6827 to 6573. [2022-11-16 11:29:45,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6573 states, 4525 states have (on average 1.3626519337016574) internal successors, (6166), 4632 states have internal predecessors, (6166), 1643 states have call successors, (1643), 405 states have call predecessors, (1643), 404 states have return successors, (1628), 1616 states have call predecessors, (1628), 1628 states have call successors, (1628) [2022-11-16 11:29:45,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6573 states to 6573 states and 9437 transitions. [2022-11-16 11:29:45,100 INFO L78 Accepts]: Start accepts. Automaton has 6573 states and 9437 transitions. Word has length 29 [2022-11-16 11:29:45,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:45,101 INFO L495 AbstractCegarLoop]: Abstraction has 6573 states and 9437 transitions. [2022-11-16 11:29:45,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:29:45,102 INFO L276 IsEmpty]: Start isEmpty. Operand 6573 states and 9437 transitions. [2022-11-16 11:29:45,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:29:45,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:45,103 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:45,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:29:45,104 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:29:45,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:45,105 INFO L85 PathProgramCache]: Analyzing trace with hash 525730978, now seen corresponding path program 1 times [2022-11-16 11:29:45,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:45,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117147076] [2022-11-16 11:29:45,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:45,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:45,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:45,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 11:29:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:45,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:45,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:45,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117147076] [2022-11-16 11:29:45,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117147076] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:29:45,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498071683] [2022-11-16 11:29:45,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:45,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:29:45,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:29:45,976 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:29:46,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:29:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:48,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 4888 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:29:48,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:29:48,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:29:48,113 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:29:48,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498071683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:48,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:29:48,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-16 11:29:48,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468405670] [2022-11-16 11:29:48,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:48,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:29:48,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:48,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:29:48,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:29:48,117 INFO L87 Difference]: Start difference. First operand 6573 states and 9437 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:29:48,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:48,403 INFO L93 Difference]: Finished difference Result 6575 states and 9438 transitions. [2022-11-16 11:29:48,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:29:48,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2022-11-16 11:29:48,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:48,539 INFO L225 Difference]: With dead ends: 6575 [2022-11-16 11:29:48,539 INFO L226 Difference]: Without dead ends: 6572 [2022-11-16 11:29:48,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:29:48,550 INFO L413 NwaCegarLoop]: 4788 mSDtfsCounter, 4759 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4759 SdHoareTripleChecker+Valid, 4788 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:48,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4759 Valid, 4788 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:29:48,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6572 states. [2022-11-16 11:29:48,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6572 to 6572. [2022-11-16 11:29:48,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6572 states, 4525 states have (on average 1.3624309392265193) internal successors, (6165), 4631 states have internal predecessors, (6165), 1642 states have call successors, (1642), 405 states have call predecessors, (1642), 404 states have return successors, (1628), 1616 states have call predecessors, (1628), 1628 states have call successors, (1628) [2022-11-16 11:29:48,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6572 states to 6572 states and 9435 transitions. [2022-11-16 11:29:48,985 INFO L78 Accepts]: Start accepts. Automaton has 6572 states and 9435 transitions. Word has length 33 [2022-11-16 11:29:48,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:48,987 INFO L495 AbstractCegarLoop]: Abstraction has 6572 states and 9435 transitions. [2022-11-16 11:29:48,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:29:48,988 INFO L276 IsEmpty]: Start isEmpty. Operand 6572 states and 9435 transitions. [2022-11-16 11:29:48,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-16 11:29:48,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:48,990 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:49,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:29:49,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:29:49,210 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:29:49,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:49,210 INFO L85 PathProgramCache]: Analyzing trace with hash -883572751, now seen corresponding path program 1 times [2022-11-16 11:29:49,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:49,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423799833] [2022-11-16 11:29:49,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:49,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:49,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:49,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 11:29:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:49,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:49,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:49,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423799833] [2022-11-16 11:29:49,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423799833] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:29:49,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731876536] [2022-11-16 11:29:49,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:49,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:29:49,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:29:49,982 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:29:50,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:29:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:52,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 4890 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:29:52,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:29:52,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:29:52,305 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:29:52,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731876536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:52,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:29:52,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-16 11:29:52,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689466500] [2022-11-16 11:29:52,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:52,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:29:52,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:52,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:29:52,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:29:52,307 INFO L87 Difference]: Start difference. First operand 6572 states and 9435 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:29:52,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:52,588 INFO L93 Difference]: Finished difference Result 6574 states and 9436 transitions. [2022-11-16 11:29:52,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:29:52,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2022-11-16 11:29:52,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:52,641 INFO L225 Difference]: With dead ends: 6574 [2022-11-16 11:29:52,641 INFO L226 Difference]: Without dead ends: 6571 [2022-11-16 11:29:52,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:29:52,649 INFO L413 NwaCegarLoop]: 4786 mSDtfsCounter, 4756 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4756 SdHoareTripleChecker+Valid, 4786 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:52,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4756 Valid, 4786 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:29:52,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6571 states. [2022-11-16 11:29:53,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6571 to 6571. [2022-11-16 11:29:53,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6571 states, 4525 states have (on average 1.3622099447513811) internal successors, (6164), 4630 states have internal predecessors, (6164), 1641 states have call successors, (1641), 405 states have call predecessors, (1641), 404 states have return successors, (1628), 1616 states have call predecessors, (1628), 1628 states have call successors, (1628) [2022-11-16 11:29:53,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6571 states to 6571 states and 9433 transitions. [2022-11-16 11:29:53,105 INFO L78 Accepts]: Start accepts. Automaton has 6571 states and 9433 transitions. Word has length 34 [2022-11-16 11:29:53,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:53,106 INFO L495 AbstractCegarLoop]: Abstraction has 6571 states and 9433 transitions. [2022-11-16 11:29:53,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:29:53,106 INFO L276 IsEmpty]: Start isEmpty. Operand 6571 states and 9433 transitions. [2022-11-16 11:29:53,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-16 11:29:53,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:53,112 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:53,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:29:53,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:29:53,326 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:29:53,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:53,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1622310523, now seen corresponding path program 1 times [2022-11-16 11:29:53,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:53,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806495598] [2022-11-16 11:29:53,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:53,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:53,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:54,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 11:29:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:54,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:54,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:54,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806495598] [2022-11-16 11:29:54,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806495598] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:29:54,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806172282] [2022-11-16 11:29:54,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:54,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:29:54,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:29:54,134 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:29:54,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 11:29:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:56,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 4892 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:29:56,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:29:56,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:29:56,139 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:29:56,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806172282] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:56,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:29:56,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-16 11:29:56,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928194057] [2022-11-16 11:29:56,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:56,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:29:56,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:56,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:29:56,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:29:56,142 INFO L87 Difference]: Start difference. First operand 6571 states and 9433 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:29:56,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:56,572 INFO L93 Difference]: Finished difference Result 10364 states and 14596 transitions. [2022-11-16 11:29:56,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:29:56,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-11-16 11:29:56,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:56,654 INFO L225 Difference]: With dead ends: 10364 [2022-11-16 11:29:56,654 INFO L226 Difference]: Without dead ends: 10360 [2022-11-16 11:29:56,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:29:56,664 INFO L413 NwaCegarLoop]: 5263 mSDtfsCounter, 4675 mSDsluCounter, 2705 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4675 SdHoareTripleChecker+Valid, 7968 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:56,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4675 Valid, 7968 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:29:56,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10360 states. [2022-11-16 11:29:57,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10360 to 10352. [2022-11-16 11:29:57,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10352 states, 7082 states have (on average 1.346229878565377) internal successors, (9534), 7257 states have internal predecessors, (9534), 2530 states have call successors, (2530), 740 states have call predecessors, (2530), 739 states have return successors, (2519), 2495 states have call predecessors, (2519), 2519 states have call successors, (2519) [2022-11-16 11:29:57,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10352 states to 10352 states and 14583 transitions. [2022-11-16 11:29:57,342 INFO L78 Accepts]: Start accepts. Automaton has 10352 states and 14583 transitions. Word has length 35 [2022-11-16 11:29:57,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:57,345 INFO L495 AbstractCegarLoop]: Abstraction has 10352 states and 14583 transitions. [2022-11-16 11:29:57,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:29:57,345 INFO L276 IsEmpty]: Start isEmpty. Operand 10352 states and 14583 transitions. [2022-11-16 11:29:57,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-16 11:29:57,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:57,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:57,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:29:57,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:29:57,568 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:29:57,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:57,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1246627188, now seen corresponding path program 1 times [2022-11-16 11:29:57,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:57,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701886834] [2022-11-16 11:29:57,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:57,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:58,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 11:29:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:58,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:58,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:58,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701886834] [2022-11-16 11:29:58,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701886834] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:29:58,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010046037] [2022-11-16 11:29:58,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:58,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:29:58,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:29:58,166 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:29:58,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 11:29:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:59,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 4894 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:29:59,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:29:59,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:29:59,903 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:29:59,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010046037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:59,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:29:59,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-16 11:29:59,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225093629] [2022-11-16 11:29:59,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:59,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:29:59,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:59,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:29:59,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:29:59,905 INFO L87 Difference]: Start difference. First operand 10352 states and 14583 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:30:00,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:00,427 INFO L93 Difference]: Finished difference Result 10354 states and 14584 transitions. [2022-11-16 11:30:00,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:00,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-11-16 11:30:00,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:00,490 INFO L225 Difference]: With dead ends: 10354 [2022-11-16 11:30:00,490 INFO L226 Difference]: Without dead ends: 10351 [2022-11-16 11:30:00,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:30:00,500 INFO L413 NwaCegarLoop]: 4780 mSDtfsCounter, 4748 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4748 SdHoareTripleChecker+Valid, 4780 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:00,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4748 Valid, 4780 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:30:00,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10351 states. [2022-11-16 11:30:01,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10351 to 10351. [2022-11-16 11:30:01,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10351 states, 7082 states have (on average 1.3460886755153911) internal successors, (9533), 7256 states have internal predecessors, (9533), 2529 states have call successors, (2529), 740 states have call predecessors, (2529), 739 states have return successors, (2519), 2495 states have call predecessors, (2519), 2519 states have call successors, (2519) [2022-11-16 11:30:01,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10351 states to 10351 states and 14581 transitions. [2022-11-16 11:30:01,207 INFO L78 Accepts]: Start accepts. Automaton has 10351 states and 14581 transitions. Word has length 36 [2022-11-16 11:30:01,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:01,208 INFO L495 AbstractCegarLoop]: Abstraction has 10351 states and 14581 transitions. [2022-11-16 11:30:01,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:30:01,208 INFO L276 IsEmpty]: Start isEmpty. Operand 10351 states and 14581 transitions. [2022-11-16 11:30:01,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-16 11:30:01,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:01,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:01,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-16 11:30:01,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:01,425 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:01,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:01,425 INFO L85 PathProgramCache]: Analyzing trace with hash -10612120, now seen corresponding path program 1 times [2022-11-16 11:30:01,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:01,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753771809] [2022-11-16 11:30:01,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:01,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:01,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:02,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 11:30:02,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:02,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:02,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:02,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753771809] [2022-11-16 11:30:02,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753771809] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:30:02,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145970695] [2022-11-16 11:30:02,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:02,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:02,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:02,065 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:30:02,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 11:30:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:03,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 4896 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:30:03,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:30:03,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:30:03,837 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:30:03,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145970695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:03,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:30:03,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-16 11:30:03,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346472197] [2022-11-16 11:30:03,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:03,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:03,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:03,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:03,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:30:03,840 INFO L87 Difference]: Start difference. First operand 10351 states and 14581 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:30:04,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:04,789 INFO L93 Difference]: Finished difference Result 27102 states and 38531 transitions. [2022-11-16 11:30:04,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:04,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2022-11-16 11:30:04,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:04,878 INFO L225 Difference]: With dead ends: 27102 [2022-11-16 11:30:04,879 INFO L226 Difference]: Without dead ends: 16757 [2022-11-16 11:30:04,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:30:04,930 INFO L413 NwaCegarLoop]: 5539 mSDtfsCounter, 4044 mSDsluCounter, 3004 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4044 SdHoareTripleChecker+Valid, 8543 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:04,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4044 Valid, 8543 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:30:04,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16757 states. [2022-11-16 11:30:06,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16757 to 16714. [2022-11-16 11:30:06,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16714 states, 11441 states have (on average 1.339480814614107) internal successors, (15325), 11725 states have internal predecessors, (15325), 3966 states have call successors, (3966), 1300 states have call predecessors, (3966), 1306 states have return successors, (4152), 3925 states have call predecessors, (4152), 3952 states have call successors, (4152) [2022-11-16 11:30:06,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16714 states to 16714 states and 23443 transitions. [2022-11-16 11:30:06,251 INFO L78 Accepts]: Start accepts. Automaton has 16714 states and 23443 transitions. Word has length 37 [2022-11-16 11:30:06,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:06,252 INFO L495 AbstractCegarLoop]: Abstraction has 16714 states and 23443 transitions. [2022-11-16 11:30:06,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:30:06,253 INFO L276 IsEmpty]: Start isEmpty. Operand 16714 states and 23443 transitions. [2022-11-16 11:30:06,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-16 11:30:06,255 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:06,255 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:06,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:06,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:06,473 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:06,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:06,474 INFO L85 PathProgramCache]: Analyzing trace with hash -330320137, now seen corresponding path program 1 times [2022-11-16 11:30:06,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:06,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978633215] [2022-11-16 11:30:06,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:06,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:07,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 11:30:07,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:07,056 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:07,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:07,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978633215] [2022-11-16 11:30:07,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978633215] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:30:07,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009567964] [2022-11-16 11:30:07,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:07,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:07,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:07,058 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:30:07,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 11:30:09,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:09,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 4898 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:30:09,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:30:09,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:30:09,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:30:09,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009567964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:09,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:30:09,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-16 11:30:09,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884819588] [2022-11-16 11:30:09,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:09,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:09,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:09,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:09,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:30:09,146 INFO L87 Difference]: Start difference. First operand 16714 states and 23443 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:30:10,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:10,465 INFO L93 Difference]: Finished difference Result 50086 states and 72027 transitions. [2022-11-16 11:30:10,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:10,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-11-16 11:30:10,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:10,665 INFO L225 Difference]: With dead ends: 50086 [2022-11-16 11:30:10,666 INFO L226 Difference]: Without dead ends: 33378 [2022-11-16 11:30:10,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:30:10,762 INFO L413 NwaCegarLoop]: 5868 mSDtfsCounter, 4816 mSDsluCounter, 4843 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4816 SdHoareTripleChecker+Valid, 10711 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:10,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4816 Valid, 10711 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:30:10,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33378 states. [2022-11-16 11:30:13,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33378 to 33339. [2022-11-16 11:30:13,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33339 states, 22827 states have (on average 1.3398168835151356) internal successors, (30584), 23388 states have internal predecessors, (30584), 7907 states have call successors, (7907), 2595 states have call predecessors, (7907), 2604 states have return successors, (9180), 7829 states have call predecessors, (9180), 7892 states have call successors, (9180) [2022-11-16 11:30:13,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33339 states to 33339 states and 47671 transitions. [2022-11-16 11:30:13,870 INFO L78 Accepts]: Start accepts. Automaton has 33339 states and 47671 transitions. Word has length 38 [2022-11-16 11:30:13,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:13,871 INFO L495 AbstractCegarLoop]: Abstraction has 33339 states and 47671 transitions. [2022-11-16 11:30:13,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:30:13,871 INFO L276 IsEmpty]: Start isEmpty. Operand 33339 states and 47671 transitions. [2022-11-16 11:30:13,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-16 11:30:13,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:13,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:13,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:14,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:14,085 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:14,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:14,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1651329205, now seen corresponding path program 1 times [2022-11-16 11:30:14,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:14,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614606015] [2022-11-16 11:30:14,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:14,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:14,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:14,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 11:30:14,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:14,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:14,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:14,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614606015] [2022-11-16 11:30:14,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614606015] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:30:14,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854122917] [2022-11-16 11:30:14,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:14,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:14,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:14,705 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:30:14,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 11:30:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:16,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 4900 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:30:16,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:30:16,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:30:16,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:30:16,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854122917] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:16,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:30:16,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-16 11:30:16,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924287182] [2022-11-16 11:30:16,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:16,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:16,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:16,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:16,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:30:16,980 INFO L87 Difference]: Start difference. First operand 33339 states and 47671 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:30:18,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:18,306 INFO L93 Difference]: Finished difference Result 33467 states and 47761 transitions. [2022-11-16 11:30:18,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:18,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-11-16 11:30:18,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:18,531 INFO L225 Difference]: With dead ends: 33467 [2022-11-16 11:30:18,531 INFO L226 Difference]: Without dead ends: 33435 [2022-11-16 11:30:18,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:30:18,555 INFO L413 NwaCegarLoop]: 4774 mSDtfsCounter, 4689 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4689 SdHoareTripleChecker+Valid, 4828 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:18,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4689 Valid, 4828 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:30:18,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33435 states. [2022-11-16 11:30:21,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33435 to 33433. [2022-11-16 11:30:21,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33433 states, 22893 states have (on average 1.3378762067007381) internal successors, (30628), 23453 states have internal predecessors, (30628), 7900 states have call successors, (7900), 2630 states have call predecessors, (7900), 2639 states have return successors, (9174), 7823 states have call predecessors, (9174), 7886 states have call successors, (9174) [2022-11-16 11:30:21,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33433 states to 33433 states and 47702 transitions. [2022-11-16 11:30:21,486 INFO L78 Accepts]: Start accepts. Automaton has 33433 states and 47702 transitions. Word has length 39 [2022-11-16 11:30:21,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:21,487 INFO L495 AbstractCegarLoop]: Abstraction has 33433 states and 47702 transitions. [2022-11-16 11:30:21,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:30:21,487 INFO L276 IsEmpty]: Start isEmpty. Operand 33433 states and 47702 transitions. [2022-11-16 11:30:21,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-16 11:30:21,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:21,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:21,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:21,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:21,722 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:21,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:21,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1867678121, now seen corresponding path program 1 times [2022-11-16 11:30:21,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:21,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196616408] [2022-11-16 11:30:21,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:21,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:22,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:30:22,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:22,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:30:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:22,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:30:22,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:22,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 11:30:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:22,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 11:30:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:22,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:30:22,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:22,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-16 11:30:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:22,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 11:30:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:22,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:22,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:22,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196616408] [2022-11-16 11:30:22,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196616408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:22,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:22,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:30:22,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66070002] [2022-11-16 11:30:22,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:22,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:30:22,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:22,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:30:22,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:30:22,322 INFO L87 Difference]: Start difference. First operand 33433 states and 47702 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-16 11:30:36,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:30:46,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:30:54,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:30:58,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:31:04,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:04,378 INFO L93 Difference]: Finished difference Result 112859 states and 165480 transitions. [2022-11-16 11:31:04,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:31:04,378 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2022-11-16 11:31:04,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:05,100 INFO L225 Difference]: With dead ends: 112859 [2022-11-16 11:31:05,100 INFO L226 Difference]: Without dead ends: 79432 [2022-11-16 11:31:05,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:31:05,278 INFO L413 NwaCegarLoop]: 2972 mSDtfsCounter, 13827 mSDsluCounter, 4808 mSDsCounter, 0 mSdLazyCounter, 10308 mSolverCounterSat, 9038 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14575 SdHoareTripleChecker+Valid, 7780 SdHoareTripleChecker+Invalid, 19348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 9038 IncrementalHoareTripleChecker+Valid, 10308 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:05,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14575 Valid, 7780 Invalid, 19348 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [9038 Valid, 10308 Invalid, 2 Unknown, 0 Unchecked, 36.4s Time] [2022-11-16 11:31:05,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79432 states. [2022-11-16 11:31:10,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79432 to 72142. [2022-11-16 11:31:10,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72142 states, 49300 states have (on average 1.3326977687626775) internal successors, (65702), 50376 states have internal predecessors, (65702), 17123 states have call successors, (17123), 5257 states have call predecessors, (17123), 5718 states have return successors, (21132), 17520 states have call predecessors, (21132), 17108 states have call successors, (21132) [2022-11-16 11:31:11,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72142 states to 72142 states and 103957 transitions. [2022-11-16 11:31:11,176 INFO L78 Accepts]: Start accepts. Automaton has 72142 states and 103957 transitions. Word has length 70 [2022-11-16 11:31:11,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:11,177 INFO L495 AbstractCegarLoop]: Abstraction has 72142 states and 103957 transitions. [2022-11-16 11:31:11,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-16 11:31:11,178 INFO L276 IsEmpty]: Start isEmpty. Operand 72142 states and 103957 transitions. [2022-11-16 11:31:11,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-16 11:31:11,193 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:11,194 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:11,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:31:11,194 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:31:11,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:11,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1925666756, now seen corresponding path program 1 times [2022-11-16 11:31:11,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:11,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939582026] [2022-11-16 11:31:11,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:11,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-16 11:31:11,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:31:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:31:11,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 11:31:11,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:31:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 11:31:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:31:11,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-16 11:31:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:31:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-16 11:31:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:31:11,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-16 11:31:11,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:31:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-16 11:31:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 11:31:11,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-16 11:31:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-16 11:31:11,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,856 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-16 11:31:11,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:11,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939582026] [2022-11-16 11:31:11,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939582026] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:11,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:11,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:31:11,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200521211] [2022-11-16 11:31:11,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:11,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:31:11,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:11,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:31:11,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:31:11,862 INFO L87 Difference]: Start difference. First operand 72142 states and 103957 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-16 11:31:21,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:31:28,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:31:43,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:31:45,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:31:53,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:53,840 INFO L93 Difference]: Finished difference Result 176566 states and 258061 transitions. [2022-11-16 11:31:53,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:31:53,841 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2022-11-16 11:31:53,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:54,558 INFO L225 Difference]: With dead ends: 176566 [2022-11-16 11:31:54,558 INFO L226 Difference]: Without dead ends: 104430 [2022-11-16 11:31:54,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:31:54,897 INFO L413 NwaCegarLoop]: 1172 mSDtfsCounter, 13059 mSDsluCounter, 2014 mSDsCounter, 0 mSdLazyCounter, 11584 mSolverCounterSat, 8058 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13736 SdHoareTripleChecker+Valid, 3186 SdHoareTripleChecker+Invalid, 19645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8058 IncrementalHoareTripleChecker+Valid, 11584 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:54,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13736 Valid, 3186 Invalid, 19645 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8058 Valid, 11584 Invalid, 3 Unknown, 0 Unchecked, 33.9s Time] [2022-11-16 11:31:55,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104430 states. [2022-11-16 11:32:01,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104430 to 94750. [2022-11-16 11:32:02,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94750 states, 64659 states have (on average 1.3295751558174422) internal successors, (85969), 66133 states have internal predecessors, (85969), 22328 states have call successors, (22328), 7154 states have call predecessors, (22328), 7762 states have return successors, (27591), 22816 states have call predecessors, (27591), 22313 states have call successors, (27591) [2022-11-16 11:32:02,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94750 states to 94750 states and 135888 transitions. [2022-11-16 11:32:02,550 INFO L78 Accepts]: Start accepts. Automaton has 94750 states and 135888 transitions. Word has length 119 [2022-11-16 11:32:02,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:02,550 INFO L495 AbstractCegarLoop]: Abstraction has 94750 states and 135888 transitions. [2022-11-16 11:32:02,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-16 11:32:02,550 INFO L276 IsEmpty]: Start isEmpty. Operand 94750 states and 135888 transitions. [2022-11-16 11:32:02,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-16 11:32:02,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:02,554 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:02,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:32:02,555 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:32:02,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:02,556 INFO L85 PathProgramCache]: Analyzing trace with hash -2115288174, now seen corresponding path program 1 times [2022-11-16 11:32:02,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:02,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206299742] [2022-11-16 11:32:02,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:02,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:03,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 11:32:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:03,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-16 11:32:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:03,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:32:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:03,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:32:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:03,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-16 11:32:03,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:03,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:32:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:03,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:32:03,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:03,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:32:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:03,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 11:32:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:03,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 11:32:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:03,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-16 11:32:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:03,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-16 11:32:03,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:03,954 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 11:32:03,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:03,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206299742] [2022-11-16 11:32:03,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206299742] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:32:03,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911480158] [2022-11-16 11:32:03,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:03,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:32:03,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:32:03,961 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:32:03,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50cf8339-4fbf-486d-971a-85645d0c3c14/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 11:32:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:06,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 5700 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:32:06,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:32:06,258 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-16 11:32:06,258 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:32:06,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911480158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:06,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:32:06,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-11-16 11:32:06,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72014431] [2022-11-16 11:32:06,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:06,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:32:06,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:06,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:32:06,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:32:06,262 INFO L87 Difference]: Start difference. First operand 94750 states and 135888 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10)