./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.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_9150dfc4-20d1-41ac-8289-5b9e86b2524d/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9150dfc4-20d1-41ac-8289-5b9e86b2524d/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9150dfc4-20d1-41ac-8289-5b9e86b2524d/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9150dfc4-20d1-41ac-8289-5b9e86b2524d/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9150dfc4-20d1-41ac-8289-5b9e86b2524d/bin/utaipan-G1rejxKTta/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9150dfc4-20d1-41ac-8289-5b9e86b2524d/bin/utaipan-G1rejxKTta --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 f81c0ae249d872dcfa63b19fa0949c00123fc4e906e065a111b2d70e300e79eb --- 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 17:22:55,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:22:55,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:22:55,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:22:55,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:22:55,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:22:55,883 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:22:55,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:22:55,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:22:55,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:22:55,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:22:55,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:22:55,893 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:22:55,894 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:22:55,896 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:22:55,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:22:55,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:22:55,900 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:22:55,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:22:55,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:22:55,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:22:55,918 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:22:55,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:22:55,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:22:55,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:22:55,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:22:55,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:22:55,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:22:55,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:22:55,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:22:55,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:22:55,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:22:55,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:22:55,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:22:55,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:22:55,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:22:55,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:22:55,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:22:55,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:22:55,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:22:55,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:22:55,947 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9150dfc4-20d1-41ac-8289-5b9e86b2524d/bin/utaipan-G1rejxKTta/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-10-17 17:22:55,979 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:22:55,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:22:55,983 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:22:55,983 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:22:55,984 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:22:55,985 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:22:55,985 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:22:55,985 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:22:55,985 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:22:55,986 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:22:55,987 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:22:55,987 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:22:55,987 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:22:55,987 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:22:55,988 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:22:55,988 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:22:55,988 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:22:55,988 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:22:55,989 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:22:55,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:22:55,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:22:55,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:22:55,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:22:55,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:22:55,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:22:55,998 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:22:55,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:22:55,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:22:55,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:22:55,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:22:56,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:22:56,000 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:22:56,000 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:22:56,000 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:22:56,001 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:22:56,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:22:56,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:22:56,001 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:22:56,002 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_9150dfc4-20d1-41ac-8289-5b9e86b2524d/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9150dfc4-20d1-41ac-8289-5b9e86b2524d/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81c0ae249d872dcfa63b19fa0949c00123fc4e906e065a111b2d70e300e79eb [2022-10-17 17:22:56,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:22:56,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:22:56,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:22:56,292 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:22:56,293 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:22:56,295 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9150dfc4-20d1-41ac-8289-5b9e86b2524d/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2022-10-17 17:22:56,369 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9150dfc4-20d1-41ac-8289-5b9e86b2524d/bin/utaipan-G1rejxKTta/data/b3442a7f9/7b6bb12862e445b2a0ec49c34b2de88c/FLAG31b98e508 [2022-10-17 17:22:57,386 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:22:57,388 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9150dfc4-20d1-41ac-8289-5b9e86b2524d/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2022-10-17 17:22:57,441 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9150dfc4-20d1-41ac-8289-5b9e86b2524d/bin/utaipan-G1rejxKTta/data/b3442a7f9/7b6bb12862e445b2a0ec49c34b2de88c/FLAG31b98e508 [2022-10-17 17:22:57,742 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9150dfc4-20d1-41ac-8289-5b9e86b2524d/bin/utaipan-G1rejxKTta/data/b3442a7f9/7b6bb12862e445b2a0ec49c34b2de88c [2022-10-17 17:22:57,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:22:57,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:22:57,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:22:57,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:22:57,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:22:57,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:22:57" (1/1) ... [2022-10-17 17:22:57,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50d6d0f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:57, skipping insertion in model container [2022-10-17 17:22:57,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:22:57" (1/1) ... [2022-10-17 17:22:57,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:22:57,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:23:00,260 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_9150dfc4-20d1-41ac-8289-5b9e86b2524d/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i[265142,265155] [2022-10-17 17:23:00,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:23:00,349 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:23:00,882 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_9150dfc4-20d1-41ac-8289-5b9e86b2524d/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i[265142,265155] [2022-10-17 17:23:00,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:23:01,076 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:23:01,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:01 WrapperNode [2022-10-17 17:23:01,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:23:01,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:23:01,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:23:01,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:23:01,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:01" (1/1) ... [2022-10-17 17:23:01,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:01" (1/1) ... [2022-10-17 17:23:01,405 INFO L138 Inliner]: procedures = 309, calls = 2432, calls flagged for inlining = 139, calls inlined = 90, statements flattened = 3953 [2022-10-17 17:23:01,406 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:23:01,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:23:01,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:23:01,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:23:01,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:01" (1/1) ... [2022-10-17 17:23:01,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:01" (1/1) ... [2022-10-17 17:23:01,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:01" (1/1) ... [2022-10-17 17:23:01,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:01" (1/1) ... [2022-10-17 17:23:01,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:01" (1/1) ... [2022-10-17 17:23:01,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:01" (1/1) ... [2022-10-17 17:23:01,670 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:01" (1/1) ... [2022-10-17 17:23:01,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:01" (1/1) ... [2022-10-17 17:23:01,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:23:01,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:23:01,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:23:01,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:23:01,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:01" (1/1) ... [2022-10-17 17:23:01,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:23:01,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9150dfc4-20d1-41ac-8289-5b9e86b2524d/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:23:01,770 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9150dfc4-20d1-41ac-8289-5b9e86b2524d/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:23:01,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9150dfc4-20d1-41ac-8289-5b9e86b2524d/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:23:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-10-17 17:23:01,836 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-10-17 17:23:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-10-17 17:23:01,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-10-17 17:23:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_ctl_ioctl [2022-10-17 17:23:01,837 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_ctl_ioctl [2022-10-17 17:23:01,837 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_kobj_release [2022-10-17 17:23:01,837 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_kobj_release [2022-10-17 17:23:01,837 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2022-10-17 17:23:01,837 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2022-10-17 17:23:01,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 17:23:01,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 17:23:01,838 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_get_disc_info [2022-10-17 17:23:01,838 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_get_disc_info [2022-10-17 17:23:01,838 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_bio_alloc [2022-10-17 17:23:01,839 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_bio_alloc [2022-10-17 17:23:01,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 17:23:01,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 17:23:01,839 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_setup_dev [2022-10-17 17:23:01,840 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_setup_dev [2022-10-17 17:23:01,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-10-17 17:23:01,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-10-17 17:23:01,840 INFO L130 BoogieDeclarations]: Found specification of procedure bdget [2022-10-17 17:23:01,840 INFO L138 BoogieDeclarations]: Found implementation of procedure bdget [2022-10-17 17:23:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_set_speed [2022-10-17 17:23:01,841 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_set_speed [2022-10-17 17:23:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure bdevname [2022-10-17 17:23:01,841 INFO L138 BoogieDeclarations]: Found implementation of procedure bdevname [2022-10-17 17:23:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-17 17:23:01,841 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-17 17:23:01,842 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_shrink_pktlist [2022-10-17 17:23:01,842 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_shrink_pktlist [2022-10-17 17:23:01,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-10-17 17:23:01,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-10-17 17:23:01,842 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-10-17 17:23:01,842 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-10-17 17:23:01,843 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-10-17 17:23:01,843 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-10-17 17:23:01,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 17:23:01,844 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 17:23:01,844 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_put [2022-10-17 17:23:01,844 INFO L138 BoogieDeclarations]: Found implementation of procedure blkdev_put [2022-10-17 17:23:01,844 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2022-10-17 17:23:01,844 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2022-10-17 17:23:01,844 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-17 17:23:01,845 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-17 17:23:01,845 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_mode_select [2022-10-17 17:23:01,845 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_mode_select [2022-10-17 17:23:01,846 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_kobj_remove [2022-10-17 17:23:01,847 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_kobj_remove [2022-10-17 17:23:01,848 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-10-17 17:23:01,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-10-17 17:23:01,849 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_debugfs_cleanup [2022-10-17 17:23:01,849 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_debugfs_cleanup [2022-10-17 17:23:01,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 17:23:01,849 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-17 17:23:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-17 17:23:01,850 INFO L130 BoogieDeclarations]: Found specification of procedure bio_init [2022-10-17 17:23:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_init [2022-10-17 17:23:01,851 INFO L130 BoogieDeclarations]: Found specification of procedure set_blocksize [2022-10-17 17:23:01,852 INFO L138 BoogieDeclarations]: Found implementation of procedure set_blocksize [2022-10-17 17:23:01,852 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_dump_sense [2022-10-17 17:23:01,852 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_dump_sense [2022-10-17 17:23:01,852 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create_kmalloc_pool [2022-10-17 17:23:01,852 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create_kmalloc_pool [2022-10-17 17:23:01,852 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2022-10-17 17:23:01,853 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2022-10-17 17:23:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 17:23:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-10-17 17:23:01,853 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-10-17 17:23:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_lock_door [2022-10-17 17:23:01,853 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_lock_door [2022-10-17 17:23:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_get [2022-10-17 17:23:01,854 INFO L138 BoogieDeclarations]: Found implementation of procedure blkdev_get [2022-10-17 17:23:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_remove_dev [2022-10-17 17:23:01,854 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_remove_dev [2022-10-17 17:23:01,855 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-10-17 17:23:01,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-10-17 17:23:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-10-17 17:23:01,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-10-17 17:23:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:23:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2022-10-17 17:23:01,857 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2022-10-17 17:23:01,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 17:23:01,857 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-17 17:23:01,858 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-17 17:23:01,858 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-10-17 17:23:01,858 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-10-17 17:23:01,859 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-10-17 17:23:01,859 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-10-17 17:23:01,859 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-10-17 17:23:01,860 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-10-17 17:23:01,861 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-17 17:23:01,861 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-17 17:23:01,861 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-17 17:23:01,861 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-17 17:23:01,861 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-10-17 17:23:01,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-10-17 17:23:01,862 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-17 17:23:01,862 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-17 17:23:01,862 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-17 17:23:01,862 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-17 17:23:01,863 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_sysfs_cleanup [2022-10-17 17:23:01,863 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_sysfs_cleanup [2022-10-17 17:23:01,863 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_init [2022-10-17 17:23:01,863 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_init [2022-10-17 17:23:01,864 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_find_dev_from_minor [2022-10-17 17:23:01,864 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_find_dev_from_minor [2022-10-17 17:23:01,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 17:23:01,865 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-17 17:23:01,865 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-17 17:23:01,868 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-17 17:23:01,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-17 17:23:01,869 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-10-17 17:23:01,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-10-17 17:23:01,870 INFO L130 BoogieDeclarations]: Found specification of procedure init_write_congestion_marks [2022-10-17 17:23:01,871 INFO L138 BoogieDeclarations]: Found implementation of procedure init_write_congestion_marks [2022-10-17 17:23:01,872 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-10-17 17:23:01,872 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-10-17 17:23:01,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 17:23:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_get_track_info [2022-10-17 17:23:01,879 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_get_track_info [2022-10-17 17:23:01,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:23:01,879 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-10-17 17:23:01,879 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-10-17 17:23:01,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 17:23:01,879 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 17:23:01,880 INFO L130 BoogieDeclarations]: Found specification of procedure new_decode_dev [2022-10-17 17:23:01,880 INFO L138 BoogieDeclarations]: Found implementation of procedure new_decode_dev [2022-10-17 17:23:01,880 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-17 17:23:01,880 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-17 17:23:01,880 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_kobj_create [2022-10-17 17:23:01,880 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_kobj_create [2022-10-17 17:23:01,881 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 17:23:01,881 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 17:23:01,881 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-10-17 17:23:01,881 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-10-17 17:23:01,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:23:01,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 17:23:01,881 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-10-17 17:23:01,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-10-17 17:23:01,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:23:01,882 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_put [2022-10-17 17:23:01,882 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_put [2022-10-17 17:23:01,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 17:23:01,882 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2022-10-17 17:23:01,883 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2022-10-17 17:23:01,883 INFO L130 BoogieDeclarations]: Found specification of procedure queue_max_segments [2022-10-17 17:23:01,883 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_max_segments [2022-10-17 17:23:01,883 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_check_events [2022-10-17 17:23:01,883 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_check_events [2022-10-17 17:23:01,883 INFO L130 BoogieDeclarations]: Found specification of procedure init_cdrom_command [2022-10-17 17:23:01,884 INFO L138 BoogieDeclarations]: Found implementation of procedure init_cdrom_command [2022-10-17 17:23:01,884 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-10-17 17:23:01,884 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-10-17 17:23:01,884 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_mode_sense [2022-10-17 17:23:01,884 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_mode_sense [2022-10-17 17:23:01,884 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-10-17 17:23:01,884 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-10-17 17:23:01,885 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_generic_packet [2022-10-17 17:23:01,885 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_generic_packet [2022-10-17 17:23:01,885 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-10-17 17:23:01,885 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-10-17 17:23:01,885 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-17 17:23:01,885 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-17 17:23:01,885 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_hw_sectors [2022-10-17 17:23:01,886 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_hw_sectors [2022-10-17 17:23:01,886 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_flush_cache [2022-10-17 17:23:01,886 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_flush_cache [2022-10-17 17:23:01,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:23:01,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:23:01,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:23:01,886 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-17 17:23:01,887 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-17 17:23:02,595 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:23:02,603 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:23:02,799 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 17:23:03,107 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2022-10-17 17:23:03,108 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2022-10-17 17:23:06,726 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 17:23:06,755 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 17:23:06,757 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 17:23:06,759 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 17:23:06,764 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 17:23:06,766 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 17:23:06,773 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 17:23:11,360 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##416: assume false; [2022-10-17 17:23:11,361 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##417: assume !false; [2022-10-17 17:23:11,361 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##282: assume !false; [2022-10-17 17:23:11,361 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##281: assume false; [2022-10-17 17:23:11,361 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##214: assume !false; [2022-10-17 17:23:11,361 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##213: assume false; [2022-10-17 17:23:11,361 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##324: assume false; [2022-10-17 17:23:11,362 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##177: assume !false; [2022-10-17 17:23:11,362 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##176: assume false; [2022-10-17 17:23:11,362 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume !false; [2022-10-17 17:23:11,362 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume false; [2022-10-17 17:23:11,362 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##153: assume !false; [2022-10-17 17:23:11,362 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##152: assume false; [2022-10-17 17:23:11,362 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##325: assume !false; [2022-10-17 17:23:11,438 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:23:12,380 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:23:12,381 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 17:23:12,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:23:12 BoogieIcfgContainer [2022-10-17 17:23:12,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:23:12,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:23:12,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:23:12,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:23:12,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:22:57" (1/3) ... [2022-10-17 17:23:12,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be2d1ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:23:12, skipping insertion in model container [2022-10-17 17:23:12,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:01" (2/3) ... [2022-10-17 17:23:12,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be2d1ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:23:12, skipping insertion in model container [2022-10-17 17:23:12,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:23:12" (3/3) ... [2022-10-17 17:23:12,398 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2022-10-17 17:23:12,420 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:23:12,420 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 17:23:12,499 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:23:12,507 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;@5dab9429, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:23:12,507 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 17:23:12,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 942 states, 604 states have (on average 1.3609271523178808) internal successors, (822), 624 states have internal predecessors, (822), 257 states have call successors, (257), 79 states have call predecessors, (257), 79 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) [2022-10-17 17:23:12,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-17 17:23:12,530 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:23:12,530 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:23:12,531 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:23:12,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:23:12,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1155916099, now seen corresponding path program 1 times [2022-10-17 17:23:12,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:23:12,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049525742] [2022-10-17 17:23:12,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:23:12,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:23:13,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:23:13,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:23:13,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:23:13,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049525742] [2022-10-17 17:23:13,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049525742] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:23:13,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:23:13,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:23:13,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611036001] [2022-10-17 17:23:13,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:23:13,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:23:13,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:23:13,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:23:13,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:23:13,476 INFO L87 Difference]: Start difference. First operand has 942 states, 604 states have (on average 1.3609271523178808) internal successors, (822), 624 states have internal predecessors, (822), 257 states have call successors, (257), 79 states have call predecessors, (257), 79 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 17:23:17,136 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 17:23:19,375 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 17:23:19,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:23:19,582 INFO L93 Difference]: Finished difference Result 2745 states and 3900 transitions. [2022-10-17 17:23:19,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:23:19,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2022-10-17 17:23:19,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:23:19,620 INFO L225 Difference]: With dead ends: 2745 [2022-10-17 17:23:19,620 INFO L226 Difference]: Without dead ends: 1810 [2022-10-17 17:23:19,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:23:19,637 INFO L413 NwaCegarLoop]: 1402 mSDtfsCounter, 1290 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1290 SdHoareTripleChecker+Valid, 2530 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-10-17 17:23:19,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1290 Valid, 2530 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 326 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-10-17 17:23:19,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2022-10-17 17:23:19,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1807. [2022-10-17 17:23:19,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1807 states, 1163 states have (on average 1.3508168529664661) internal successors, (1571), 1196 states have internal predecessors, (1571), 488 states have call successors, (488), 156 states have call predecessors, (488), 155 states have return successors, (489), 480 states have call predecessors, (489), 486 states have call successors, (489) [2022-10-17 17:23:19,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2548 transitions. [2022-10-17 17:23:19,954 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 2548 transitions. Word has length 18 [2022-10-17 17:23:19,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:23:19,955 INFO L495 AbstractCegarLoop]: Abstraction has 1807 states and 2548 transitions. [2022-10-17 17:23:19,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 17:23:19,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 2548 transitions. [2022-10-17 17:23:19,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-17 17:23:19,983 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:23:19,984 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:23:19,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 17:23:19,984 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:23:19,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:23:19,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1046938944, now seen corresponding path program 1 times [2022-10-17 17:23:19,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:23:19,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176039318] [2022-10-17 17:23:19,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:23:19,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:23:20,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:23:20,765 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 17:23:20,765 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:23:20,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176039318] [2022-10-17 17:23:20,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176039318] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:23:20,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:23:20,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 17:23:20,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476449849] [2022-10-17 17:23:20,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:23:20,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 17:23:20,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:23:20,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 17:23:20,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 17:23:20,770 INFO L87 Difference]: Start difference. First operand 1807 states and 2548 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-17 17:23:24,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-10-17 17:23:26,934 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 17:23:27,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:23:27,256 INFO L93 Difference]: Finished difference Result 3580 states and 5047 transitions. [2022-10-17 17:23:27,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 17:23:27,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 107 [2022-10-17 17:23:27,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:23:27,275 INFO L225 Difference]: With dead ends: 3580 [2022-10-17 17:23:27,275 INFO L226 Difference]: Without dead ends: 1807 [2022-10-17 17:23:27,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 17:23:27,285 INFO L413 NwaCegarLoop]: 1157 mSDtfsCounter, 1 mSDsluCounter, 2630 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3468 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-10-17 17:23:27,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3468 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 488 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-10-17 17:23:27,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2022-10-17 17:23:27,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1807. [2022-10-17 17:23:27,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1807 states, 1163 states have (on average 1.349957007738607) internal successors, (1570), 1196 states have internal predecessors, (1570), 488 states have call successors, (488), 156 states have call predecessors, (488), 155 states have return successors, (489), 480 states have call predecessors, (489), 486 states have call successors, (489) [2022-10-17 17:23:27,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2547 transitions. [2022-10-17 17:23:27,410 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 2547 transitions. Word has length 107 [2022-10-17 17:23:27,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:23:27,410 INFO L495 AbstractCegarLoop]: Abstraction has 1807 states and 2547 transitions. [2022-10-17 17:23:27,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-17 17:23:27,411 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 2547 transitions. [2022-10-17 17:23:27,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-17 17:23:27,416 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:23:27,416 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:23:27,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 17:23:27,417 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:23:27,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:23:27,418 INFO L85 PathProgramCache]: Analyzing trace with hash -968682617, now seen corresponding path program 1 times [2022-10-17 17:23:27,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:23:27,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231412641] [2022-10-17 17:23:27,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:23:27,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:23:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:23:28,258 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 17:23:28,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:23:28,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231412641] [2022-10-17 17:23:28,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231412641] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:23:28,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:23:28,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 17:23:28,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937914457] [2022-10-17 17:23:28,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:23:28,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 17:23:28,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:23:28,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 17:23:28,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 17:23:28,264 INFO L87 Difference]: Start difference. First operand 1807 states and 2547 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16)