./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--message--fusion--mptctl.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5e0ddd-ea40-4fcf-84e1-d915b41959fe/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5e0ddd-ea40-4fcf-84e1-d915b41959fe/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5e0ddd-ea40-4fcf-84e1-d915b41959fe/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5e0ddd-ea40-4fcf-84e1-d915b41959fe/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5e0ddd-ea40-4fcf-84e1-d915b41959fe/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5e0ddd-ea40-4fcf-84e1-d915b41959fe/bin/uautomizer-J5u9QxTXDZ --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 1cfba800a850f13ff72fddf9946e31aec208a19aa4b82d402046e12670b66199 --- 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-dbf71c6-m [2022-10-17 10:26:31,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:26:31,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:26:31,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:26:31,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:26:31,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:26:31,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:26:31,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:26:31,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:26:31,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:26:31,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:26:31,789 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:26:31,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:26:31,791 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:26:31,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:26:31,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:26:31,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:26:31,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:26:31,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:26:31,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:26:31,806 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:26:31,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:26:31,809 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:26:31,811 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:26:31,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:26:31,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:26:31,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:26:31,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:26:31,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:26:31,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:26:31,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:26:31,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:26:31,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:26:31,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:26:31,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:26:31,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:26:31,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:26:31,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:26:31,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:26:31,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:26:31,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:26:31,835 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5e0ddd-ea40-4fcf-84e1-d915b41959fe/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:26:31,884 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:26:31,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:26:31,901 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:26:31,901 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:26:31,902 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:26:31,903 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:26:31,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:26:31,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:26:31,904 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:26:31,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:26:31,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:26:31,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:26:31,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:26:31,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:26:31,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:26:31,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:26:31,907 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:26:31,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:26:31,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:26:31,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:26:31,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:26:31,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:26:31,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:26:31,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:26:31,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:26:31,909 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:26:31,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:26:31,910 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:26:31,912 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:26:31,913 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:26:31,915 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_3e5e0ddd-ea40-4fcf-84e1-d915b41959fe/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5e0ddd-ea40-4fcf-84e1-d915b41959fe/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cfba800a850f13ff72fddf9946e31aec208a19aa4b82d402046e12670b66199 [2022-10-17 10:26:32,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:26:32,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:26:32,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:26:32,258 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:26:32,259 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:26:32,260 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5e0ddd-ea40-4fcf-84e1-d915b41959fe/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i [2022-10-17 10:26:32,330 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5e0ddd-ea40-4fcf-84e1-d915b41959fe/bin/uautomizer-J5u9QxTXDZ/data/bc57a9732/c534a0bfb16343199a90a05879a948d4/FLAGfdda3df3b [2022-10-17 10:26:33,390 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:26:33,391 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5e0ddd-ea40-4fcf-84e1-d915b41959fe/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i [2022-10-17 10:26:33,434 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5e0ddd-ea40-4fcf-84e1-d915b41959fe/bin/uautomizer-J5u9QxTXDZ/data/bc57a9732/c534a0bfb16343199a90a05879a948d4/FLAGfdda3df3b [2022-10-17 10:26:33,700 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5e0ddd-ea40-4fcf-84e1-d915b41959fe/bin/uautomizer-J5u9QxTXDZ/data/bc57a9732/c534a0bfb16343199a90a05879a948d4 [2022-10-17 10:26:33,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:26:33,704 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:26:33,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:26:33,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:26:33,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:26:33,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:26:33" (1/1) ... [2022-10-17 10:26:33,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46f0269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:33, skipping insertion in model container [2022-10-17 10:26:33,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:26:33" (1/1) ... [2022-10-17 10:26:33,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:26:33,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:26:36,423 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5e0ddd-ea40-4fcf-84e1-d915b41959fe/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i[277952,277965] [2022-10-17 10:26:36,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:26:36,736 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:26:37,240 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5e0ddd-ea40-4fcf-84e1-d915b41959fe/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i[277952,277965] [2022-10-17 10:26:37,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:26:37,379 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:26:37,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:37 WrapperNode [2022-10-17 10:26:37,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:26:37,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:26:37,384 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:26:37,384 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:26:37,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:37" (1/1) ... [2022-10-17 10:26:37,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:37" (1/1) ... [2022-10-17 10:26:37,779 INFO L138 Inliner]: procedures = 258, calls = 2260, calls flagged for inlining = 96, calls inlined = 93, statements flattened = 6022 [2022-10-17 10:26:37,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:26:37,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:26:37,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:26:37,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:26:37,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:37" (1/1) ... [2022-10-17 10:26:37,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:37" (1/1) ... [2022-10-17 10:26:37,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:37" (1/1) ... [2022-10-17 10:26:37,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:37" (1/1) ... [2022-10-17 10:26:38,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:37" (1/1) ... [2022-10-17 10:26:38,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:37" (1/1) ... [2022-10-17 10:26:38,144 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:37" (1/1) ... [2022-10-17 10:26:38,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:37" (1/1) ... [2022-10-17 10:26:38,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:26:38,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:26:38,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:26:38,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:26:38,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:37" (1/1) ... [2022-10-17 10:26:38,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:26:38,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5e0ddd-ea40-4fcf-84e1-d915b41959fe/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:38,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5e0ddd-ea40-4fcf-84e1-d915b41959fe/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:38,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5e0ddd-ea40-4fcf-84e1-d915b41959fe/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:26:38,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 10:26:38,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 10:26:38,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-17 10:26:38,326 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-17 10:26:38,326 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~dma_addr_t~0~TO~VOID [2022-10-17 10:26:38,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~dma_addr_t~0~TO~VOID [2022-10-17 10:26:38,327 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2022-10-17 10:26:38,327 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2022-10-17 10:26:38,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mpctl_mutex [2022-10-17 10:26:38,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mpctl_mutex [2022-10-17 10:26:38,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 10:26:38,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 10:26:38,328 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_GetIocState [2022-10-17 10:26:38,328 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_GetIocState [2022-10-17 10:26:38,328 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2022-10-17 10:26:38,328 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2022-10-17 10:26:38,329 INFO L130 BoogieDeclarations]: Found specification of procedure __scsi_iterate_devices [2022-10-17 10:26:38,329 INFO L138 BoogieDeclarations]: Found implementation of procedure __scsi_iterate_devices [2022-10-17 10:26:38,329 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-17 10:26:38,329 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-17 10:26:38,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 10:26:38,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 10:26:38,330 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_syscall_down [2022-10-17 10:26:38,330 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_syscall_down [2022-10-17 10:26:38,330 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_device_driver_deregister [2022-10-17 10:26:38,331 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_device_driver_deregister [2022-10-17 10:26:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-10-17 10:26:38,331 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-10-17 10:26:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_remove [2022-10-17 10:26:38,331 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_remove [2022-10-17 10:26:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 10:26:38,332 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 10:26:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 10:26:38,332 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 10:26:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_put_msg_frame [2022-10-17 10:26:38,333 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_put_msg_frame [2022-10-17 10:26:38,333 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-10-17 10:26:38,333 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-10-17 10:26:38,333 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-10-17 10:26:38,333 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-10-17 10:26:38,334 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-17 10:26:38,334 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-17 10:26:38,334 INFO L130 BoogieDeclarations]: Found specification of procedure __mptctl_ioctl [2022-10-17 10:26:38,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __mptctl_ioctl [2022-10-17 10:26:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_do_mpt_command [2022-10-17 10:26:38,335 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_do_mpt_command [2022-10-17 10:26:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_do_fw_download [2022-10-17 10:26:38,335 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_do_fw_download [2022-10-17 10:26:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:26:38,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:26:38,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of__MPT_MGMT [2022-10-17 10:26:38,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of__MPT_MGMT [2022-10-17 10:26:38,336 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_put_msg_frame_hi_pri [2022-10-17 10:26:38,336 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_put_msg_frame_hi_pri [2022-10-17 10:26:38,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-17 10:26:38,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-17 10:26:38,337 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-17 10:26:38,337 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-17 10:26:38,337 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_free_fw_memory [2022-10-17 10:26:38,338 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_free_fw_memory [2022-10-17 10:26:38,338 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_do_taskmgmt [2022-10-17 10:26:38,338 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_do_taskmgmt [2022-10-17 10:26:38,338 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-10-17 10:26:38,339 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-10-17 10:26:38,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:26:38,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:26:38,339 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_clear_taskmgmt_in_progress_flag [2022-10-17 10:26:38,339 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_clear_taskmgmt_in_progress_flag [2022-10-17 10:26:38,340 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_timeout_expired [2022-10-17 10:26:38,340 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_timeout_expired [2022-10-17 10:26:38,340 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-10-17 10:26:38,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-10-17 10:26:38,340 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-17 10:26:38,341 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-17 10:26:38,341 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-17 10:26:38,341 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-17 10:26:38,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mpctl_mutex [2022-10-17 10:26:38,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mpctl_mutex [2022-10-17 10:26:38,342 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_fasync [2022-10-17 10:26:38,342 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_fasync [2022-10-17 10:26:38,342 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-10-17 10:26:38,342 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-10-17 10:26:38,342 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2022-10-17 10:26:38,343 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2022-10-17 10:26:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:26:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_set_taskmgmt_in_progress_flag [2022-10-17 10:26:38,343 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_set_taskmgmt_in_progress_flag [2022-10-17 10:26:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-10-17 10:26:38,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-10-17 10:26:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_verify_adapter [2022-10-17 10:26:38,344 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_verify_adapter [2022-10-17 10:26:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 10:26:38,344 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 10:26:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-10-17 10:26:38,345 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-10-17 10:26:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:26:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-10-17 10:26:38,345 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-10-17 10:26:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_deregister [2022-10-17 10:26:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_deregister [2022-10-17 10:26:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_sgl [2022-10-17 10:26:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_sgl [2022-10-17 10:26:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 10:26:38,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 10:26:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-10-17 10:26:38,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-10-17 10:26:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:26:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-10-17 10:26:38,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-10-17 10:26:38,348 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-10-17 10:26:38,348 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-10-17 10:26:38,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:26:38,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-17 10:26:38,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-17 10:26:38,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:26:38,349 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_get_msg_frame [2022-10-17 10:26:38,349 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_get_msg_frame [2022-10-17 10:26:38,349 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-10-17 10:26:38,350 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-10-17 10:26:38,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of__MPT_MGMT [2022-10-17 10:26:38,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of__MPT_MGMT [2022-10-17 10:26:38,350 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_send_handshake_request [2022-10-17 10:26:38,351 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_send_handshake_request [2022-10-17 10:26:38,351 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_register [2022-10-17 10:26:38,351 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_register [2022-10-17 10:26:38,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of__MPT_MGMT [2022-10-17 10:26:38,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of__MPT_MGMT [2022-10-17 10:26:38,352 INFO L130 BoogieDeclarations]: Found specification of procedure shost_priv [2022-10-17 10:26:38,352 INFO L138 BoogieDeclarations]: Found implementation of procedure shost_priv [2022-10-17 10:26:38,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:26:38,352 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-10-17 10:26:38,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:26:38,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:26:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_config [2022-10-17 10:26:38,353 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_config [2022-10-17 10:26:38,354 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_free_msg_frame [2022-10-17 10:26:38,354 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_free_msg_frame [2022-10-17 10:26:38,354 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-17 10:26:38,354 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-17 10:26:39,368 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:26:39,376 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:26:43,382 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 10:26:51,248 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:26:51,269 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:26:51,270 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:26:51,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:26:51 BoogieIcfgContainer [2022-10-17 10:26:51,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:26:51,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:26:51,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:26:51,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:26:51,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:26:33" (1/3) ... [2022-10-17 10:26:51,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7b6784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:26:51, skipping insertion in model container [2022-10-17 10:26:51,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:37" (2/3) ... [2022-10-17 10:26:51,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7b6784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:26:51, skipping insertion in model container [2022-10-17 10:26:51,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:26:51" (3/3) ... [2022-10-17 10:26:51,293 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i [2022-10-17 10:26:51,316 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:26:51,317 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:26:51,467 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:26:51,475 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;@1668cdd2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:26:51,475 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:26:51,487 INFO L276 IsEmpty]: Start isEmpty. Operand has 1383 states, 1052 states have (on average 1.435361216730038) internal successors, (1510), 1072 states have internal predecessors, (1510), 267 states have call successors, (267), 63 states have call predecessors, (267), 62 states have return successors, (263), 262 states have call predecessors, (263), 263 states have call successors, (263) [2022-10-17 10:26:51,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-10-17 10:26:51,503 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:26:51,504 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:26:51,506 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:26:51,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:51,516 INFO L85 PathProgramCache]: Analyzing trace with hash -806038929, now seen corresponding path program 1 times [2022-10-17 10:26:51,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:51,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60160291] [2022-10-17 10:26:51,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:51,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:52,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:26:52,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:52,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:26:52,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:52,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:26:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:52,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-17 10:26:52,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:52,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:26:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:52,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-17 10:26:52,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:52,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:26:52,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:52,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-17 10:26:52,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:52,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:26:52,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:52,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-17 10:26:52,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:52,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:26:52,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:52,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-17 10:26:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:52,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:26:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:52,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-17 10:26:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:52,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:26:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:52,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-17 10:26:52,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:52,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:26:52,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:52,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-17 10:26:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:52,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:26:52,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:52,858 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-10-17 10:26:52,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:26:52,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60160291] [2022-10-17 10:26:52,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60160291] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:26:52,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:26:52,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:26:52,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798615872] [2022-10-17 10:26:52,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:26:52,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:26:52,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:26:52,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:26:52,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:26:52,925 INFO L87 Difference]: Start difference. First operand has 1383 states, 1052 states have (on average 1.435361216730038) internal successors, (1510), 1072 states have internal predecessors, (1510), 267 states have call successors, (267), 63 states have call predecessors, (267), 62 states have return successors, (263), 262 states have call predecessors, (263), 263 states have call successors, (263) Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-17 10:26:55,615 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 [] [2022-10-17 10:26:57,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 10:26:59,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 10:27:03,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 10:27:05,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []