./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--hwmon--applesmc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_ce32e46f-9311-4189-a764-fd3c57b315cf/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce32e46f-9311-4189-a764-fd3c57b315cf/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce32e46f-9311-4189-a764-fd3c57b315cf/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce32e46f-9311-4189-a764-fd3c57b315cf/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--applesmc.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce32e46f-9311-4189-a764-fd3c57b315cf/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce32e46f-9311-4189-a764-fd3c57b315cf/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9fa9a116c65e181b2439dd2b2c2873427a3e35414c05ff14dcd571e0747c2ab8 --- 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-4e7fbc6 [2022-11-23 15:54:38,770 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:54:38,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:54:38,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:54:38,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:54:38,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:54:38,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:54:38,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:54:38,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:54:38,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:54:38,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:54:38,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:54:38,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:54:38,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:54:38,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:54:38,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:54:38,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:54:38,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:54:38,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:54:38,850 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:54:38,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:54:38,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:54:38,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:54:38,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:54:38,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:54:38,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:54:38,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:54:38,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:54:38,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:54:38,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:54:38,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:54:38,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:54:38,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:54:38,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:54:38,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:54:38,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:54:38,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:54:38,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:54:38,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:54:38,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:54:38,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:54:38,880 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce32e46f-9311-4189-a764-fd3c57b315cf/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 15:54:38,924 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:54:38,924 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:54:38,925 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:54:38,925 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:54:38,926 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:54:38,926 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:54:38,926 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:54:38,926 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:54:38,927 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:54:38,927 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:54:38,928 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:54:38,928 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:54:38,928 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:54:38,928 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:54:38,929 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:54:38,929 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:54:38,929 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:54:38,929 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:54:38,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:54:38,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:54:38,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:54:38,931 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:54:38,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:54:38,931 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:54:38,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:54:38,931 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:54:38,932 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:54:38,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:54:38,933 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:54:38,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:54:38,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:54:38,933 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:54:38,934 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:54:38,934 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:54:38,934 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:54:38,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:54:38,935 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:54:38,935 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:54:38,935 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_ce32e46f-9311-4189-a764-fd3c57b315cf/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce32e46f-9311-4189-a764-fd3c57b315cf/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fa9a116c65e181b2439dd2b2c2873427a3e35414c05ff14dcd571e0747c2ab8 [2022-11-23 15:54:39,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:54:39,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:54:39,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:54:39,245 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:54:39,247 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:54:39,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce32e46f-9311-4189-a764-fd3c57b315cf/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--applesmc.ko-entry_point.cil.out.i [2022-11-23 15:54:42,271 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:54:42,825 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:54:42,827 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce32e46f-9311-4189-a764-fd3c57b315cf/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--applesmc.ko-entry_point.cil.out.i [2022-11-23 15:54:42,873 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce32e46f-9311-4189-a764-fd3c57b315cf/bin/utaipan-Q6hlc19bkW/data/330c2843e/a02202189e5846c58e9e05851026c4f0/FLAGa92962fa0 [2022-11-23 15:54:42,891 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce32e46f-9311-4189-a764-fd3c57b315cf/bin/utaipan-Q6hlc19bkW/data/330c2843e/a02202189e5846c58e9e05851026c4f0 [2022-11-23 15:54:42,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:54:42,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:54:42,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:54:42,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:54:42,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:54:42,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:54:42" (1/1) ... [2022-11-23 15:54:42,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6051ff6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:42, skipping insertion in model container [2022-11-23 15:54:42,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:54:42" (1/1) ... [2022-11-23 15:54:42,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:54:43,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:54:44,763 WARN L237 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_ce32e46f-9311-4189-a764-fd3c57b315cf/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--applesmc.ko-entry_point.cil.out.i[194089,194102] [2022-11-23 15:54:44,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:54:44,987 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:54:45,245 WARN L237 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_ce32e46f-9311-4189-a764-fd3c57b315cf/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--applesmc.ko-entry_point.cil.out.i[194089,194102] [2022-11-23 15:54:45,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:54:45,429 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:54:45,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45 WrapperNode [2022-11-23 15:54:45,430 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:54:45,431 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:54:45,431 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:54:45,431 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:54:45,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2022-11-23 15:54:45,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2022-11-23 15:54:45,667 INFO L138 Inliner]: procedures = 255, calls = 1899, calls flagged for inlining = 81, calls inlined = 71, statements flattened = 3094 [2022-11-23 15:54:45,668 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:54:45,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:54:45,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:54:45,669 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:54:45,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2022-11-23 15:54:45,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2022-11-23 15:54:45,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2022-11-23 15:54:45,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2022-11-23 15:54:45,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2022-11-23 15:54:45,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2022-11-23 15:54:45,845 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2022-11-23 15:54:45,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2022-11-23 15:54:45,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:54:45,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:54:45,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:54:45,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:54:45,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2022-11-23 15:54:45,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:54:45,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce32e46f-9311-4189-a764-fd3c57b315cf/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:54:45,911 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce32e46f-9311-4189-a764-fd3c57b315cf/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:54:45,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce32e46f-9311-4189-a764-fd3c57b315cf/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:54:45,958 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-23 15:54:45,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-23 15:54:45,958 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-23 15:54:45,958 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-23 15:54:45,959 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-11-23 15:54:45,959 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-11-23 15:54:45,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 15:54:45,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 15:54:45,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 15:54:45,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 15:54:45,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 15:54:45,960 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 15:54:45,960 INFO L130 BoogieDeclarations]: Found specification of procedure send_argument [2022-11-23 15:54:45,960 INFO L138 BoogieDeclarations]: Found implementation of procedure send_argument [2022-11-23 15:54:45,960 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_pm_resume [2022-11-23 15:54:45,960 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_pm_resume [2022-11-23 15:54:45,960 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_get_lower_bound [2022-11-23 15:54:45,961 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_get_lower_bound [2022-11-23 15:54:45,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 15:54:45,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 15:54:45,961 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_release_accelerometer [2022-11-23 15:54:45,961 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_release_accelerometer [2022-11-23 15:54:45,961 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-11-23 15:54:45,962 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-11-23 15:54:45,962 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 15:54:45,962 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 15:54:45,963 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_release_light_sensor [2022-11-23 15:54:45,963 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_release_light_sensor [2022-11-23 15:54:45,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-23 15:54:45,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-23 15:54:45,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_applesmc_registers [2022-11-23 15:54:45,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_applesmc_registers [2022-11-23 15:54:45,965 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-23 15:54:45,965 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-23 15:54:45,965 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 15:54:45,965 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 15:54:45,965 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_calibrate [2022-11-23 15:54:45,966 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_calibrate [2022-11-23 15:54:45,966 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_release_key_backlight [2022-11-23 15:54:45,966 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_release_key_backlight [2022-11-23 15:54:45,966 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-23 15:54:45,966 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-23 15:54:45,966 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-23 15:54:45,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-23 15:54:45,967 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_read_entry [2022-11-23 15:54:45,967 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_read_entry [2022-11-23 15:54:45,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:54:45,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:54:45,967 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-11-23 15:54:45,968 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-11-23 15:54:45,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 15:54:45,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 15:54:45,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_remove_4 [2022-11-23 15:54:45,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_remove_4 [2022-11-23 15:54:45,969 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2022-11-23 15:54:45,969 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2022-11-23 15:54:45,970 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_write_key [2022-11-23 15:54:45,970 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_write_key [2022-11-23 15:54:45,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:54:45,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:54:45,971 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_backlight_set [2022-11-23 15:54:45,971 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_backlight_set [2022-11-23 15:54:45,971 INFO L130 BoogieDeclarations]: Found specification of procedure send_byte [2022-11-23 15:54:45,971 INFO L138 BoogieDeclarations]: Found implementation of procedure send_byte [2022-11-23 15:54:45,971 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-23 15:54:45,971 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-23 15:54:45,972 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-23 15:54:45,972 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-23 15:54:45,972 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_init_smcreg [2022-11-23 15:54:45,972 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_init_smcreg [2022-11-23 15:54:45,972 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_has_key [2022-11-23 15:54:45,972 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_has_key [2022-11-23 15:54:45,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 15:54:45,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 15:54:45,973 INFO L130 BoogieDeclarations]: Found specification of procedure send_command [2022-11-23 15:54:45,974 INFO L138 BoogieDeclarations]: Found implementation of procedure send_command [2022-11-23 15:54:45,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:54:45,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 15:54:45,975 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 15:54:45,976 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_get_entry_by_key [2022-11-23 15:54:45,976 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_get_entry_by_key [2022-11-23 15:54:45,976 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-23 15:54:45,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-23 15:54:45,976 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 15:54:45,976 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 15:54:45,977 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_device_init [2022-11-23 15:54:45,977 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_device_init [2022-11-23 15:54:45,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:54:45,977 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-23 15:54:45,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-23 15:54:45,977 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_destroy_nodes [2022-11-23 15:54:45,978 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_destroy_nodes [2022-11-23 15:54:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-23 15:54:45,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-23 15:54:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure read_smc [2022-11-23 15:54:45,979 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smc [2022-11-23 15:54:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_get_entry_by_index [2022-11-23 15:54:45,979 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_get_entry_by_index [2022-11-23 15:54:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:54:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_read_key [2022-11-23 15:54:45,980 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_read_key [2022-11-23 15:54:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:54:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_read_s16 [2022-11-23 15:54:45,980 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_read_s16 [2022-11-23 15:54:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 15:54:45,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 15:54:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_probe [2022-11-23 15:54:45,981 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_probe [2022-11-23 15:54:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:54:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2022-11-23 15:54:45,981 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2022-11-23 15:54:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_polled_device [2022-11-23 15:54:45,982 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_polled_device [2022-11-23 15:54:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-23 15:54:45,982 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-23 15:54:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_applesmc_registers [2022-11-23 15:54:45,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_applesmc_registers [2022-11-23 15:54:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-11-23 15:54:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-11-23 15:54:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_pm_restore [2022-11-23 15:54:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_pm_restore [2022-11-23 15:54:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-23 15:54:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-23 15:54:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_create_nodes [2022-11-23 15:54:45,984 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_create_nodes [2022-11-23 15:54:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:54:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_destroy_smcreg [2022-11-23 15:54:45,984 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_destroy_smcreg [2022-11-23 15:54:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:54:45,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:54:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-23 15:54:45,985 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-23 15:54:46,465 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:54:46,468 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:54:46,738 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 16:10:05,542 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 16:10:08,927 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 16:10:08,928 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 16:10:08,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:10:08 BoogieIcfgContainer [2022-11-23 16:10:08,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 16:10:08,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 16:10:08,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 16:10:08,937 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 16:10:08,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:54:42" (1/3) ... [2022-11-23 16:10:08,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29efc590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:10:08, skipping insertion in model container [2022-11-23 16:10:08,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (2/3) ... [2022-11-23 16:10:08,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29efc590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:10:08, skipping insertion in model container [2022-11-23 16:10:08,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:10:08" (3/3) ... [2022-11-23 16:10:08,941 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--applesmc.ko-entry_point.cil.out.i [2022-11-23 16:10:08,963 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 16:10:08,963 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 16:10:09,046 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 16:10:09,054 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=FINITE_AUTOMATA, 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;@7bc8915, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 16:10:09,054 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 16:10:09,064 INFO L276 IsEmpty]: Start isEmpty. Operand has 650 states, 409 states have (on average 1.4034229828850855) internal successors, (574), 441 states have internal predecessors, (574), 182 states have call successors, (182), 58 states have call predecessors, (182), 57 states have return successors, (175), 175 states have call predecessors, (175), 175 states have call successors, (175) [2022-11-23 16:10:09,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-23 16:10:09,088 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:10:09,089 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 16:10:09,089 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:10:09,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:10:09,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1324210083, now seen corresponding path program 1 times [2022-11-23 16:10:09,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:10:09,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820990989] [2022-11-23 16:10:09,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:10:09,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:10:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:10:11,825 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 16:10:11,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:10:11,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820990989] [2022-11-23 16:10:11,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820990989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:10:11,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:10:11,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 16:10:11,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937141976] [2022-11-23 16:10:11,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:10:11,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 16:10:11,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:10:11,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 16:10:11,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:10:11,878 INFO L87 Difference]: Start difference. First operand has 650 states, 409 states have (on average 1.4034229828850855) internal successors, (574), 441 states have internal predecessors, (574), 182 states have call successors, (182), 58 states have call predecessors, (182), 57 states have return successors, (175), 175 states have call predecessors, (175), 175 states have call successors, (175) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)