./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.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_08138c6c-53a3-45c6-8517-b59f463b975c/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08138c6c-53a3-45c6-8517-b59f463b975c/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_08138c6c-53a3-45c6-8517-b59f463b975c/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08138c6c-53a3-45c6-8517-b59f463b975c/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08138c6c-53a3-45c6-8517-b59f463b975c/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_08138c6c-53a3-45c6-8517-b59f463b975c/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 f25e8d9a29012500b38126aa22b2b7d181aad99a845cece264158253e2ec92e3 --- 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 17:42:48,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:42:48,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:42:48,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:42:48,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:42:48,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:42:48,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:42:48,176 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:42:48,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:42:48,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:42:48,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:42:48,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:42:48,183 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:42:48,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:42:48,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:42:48,187 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:42:48,189 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:42:48,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:42:48,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:42:48,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:42:48,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:42:48,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:42:48,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:42:48,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:42:48,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:42:48,206 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:42:48,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:42:48,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:42:48,208 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:42:48,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:42:48,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:42:48,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:42:48,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:42:48,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:42:48,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:42:48,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:42:48,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:42:48,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:42:48,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:42:48,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:42:48,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:42:48,219 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08138c6c-53a3-45c6-8517-b59f463b975c/bin/utaipan-G1rejxKTta/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-10-17 17:42:48,245 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:42:48,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:42:48,245 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:42:48,246 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:42:48,247 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:42:48,247 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:42:48,247 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:42:48,247 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:42:48,248 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:42:48,248 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:42:48,248 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:42:48,248 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:42:48,248 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:42:48,249 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:42:48,249 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:42:48,249 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:42:48,249 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:42:48,250 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:42:48,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:42:48,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:42:48,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:42:48,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:42:48,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:42:48,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:42:48,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:42:48,252 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:42:48,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:42:48,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:42:48,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:42:48,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:42:48,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:42:48,254 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:42:48,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:42:48,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:42:48,254 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:42:48,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:42:48,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:42:48,255 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:42:48,255 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_08138c6c-53a3-45c6-8517-b59f463b975c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08138c6c-53a3-45c6-8517-b59f463b975c/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f25e8d9a29012500b38126aa22b2b7d181aad99a845cece264158253e2ec92e3 [2022-10-17 17:42:48,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:42:48,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:42:48,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:42:48,546 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:42:48,547 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:42:48,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08138c6c-53a3-45c6-8517-b59f463b975c/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i [2022-10-17 17:42:48,615 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08138c6c-53a3-45c6-8517-b59f463b975c/bin/utaipan-G1rejxKTta/data/1e798909b/ba34a7e601e74a3bbf67a4c499e8f9a0/FLAG4930ed3f1 [2022-10-17 17:42:49,579 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:42:49,582 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08138c6c-53a3-45c6-8517-b59f463b975c/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i [2022-10-17 17:42:49,633 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08138c6c-53a3-45c6-8517-b59f463b975c/bin/utaipan-G1rejxKTta/data/1e798909b/ba34a7e601e74a3bbf67a4c499e8f9a0/FLAG4930ed3f1 [2022-10-17 17:42:50,012 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08138c6c-53a3-45c6-8517-b59f463b975c/bin/utaipan-G1rejxKTta/data/1e798909b/ba34a7e601e74a3bbf67a4c499e8f9a0 [2022-10-17 17:42:50,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:42:50,018 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:42:50,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:42:50,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:42:50,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:42:50,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:42:50" (1/1) ... [2022-10-17 17:42:50,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23d3ac7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:50, skipping insertion in model container [2022-10-17 17:42:50,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:42:50" (1/1) ... [2022-10-17 17:42:50,045 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:42:50,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:42:51,854 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_08138c6c-53a3-45c6-8517-b59f463b975c/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i[192897,192910] [2022-10-17 17:42:51,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:42:51,943 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:42:52,354 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_08138c6c-53a3-45c6-8517-b59f463b975c/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i[192897,192910] [2022-10-17 17:42:52,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:42:52,477 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:42:52,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:52 WrapperNode [2022-10-17 17:42:52,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:42:52,479 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:42:52,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:42:52,479 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:42:52,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:52" (1/1) ... [2022-10-17 17:42:52,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:52" (1/1) ... [2022-10-17 17:42:52,700 INFO L138 Inliner]: procedures = 236, calls = 1201, calls flagged for inlining = 124, calls inlined = 121, statements flattened = 3745 [2022-10-17 17:42:52,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:42:52,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:42:52,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:42:52,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:42:52,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:52" (1/1) ... [2022-10-17 17:42:52,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:52" (1/1) ... [2022-10-17 17:42:52,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:52" (1/1) ... [2022-10-17 17:42:52,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:52" (1/1) ... [2022-10-17 17:42:52,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:52" (1/1) ... [2022-10-17 17:42:52,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:52" (1/1) ... [2022-10-17 17:42:53,004 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:52" (1/1) ... [2022-10-17 17:42:53,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:52" (1/1) ... [2022-10-17 17:42:53,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:42:53,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:42:53,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:42:53,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:42:53,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:52" (1/1) ... [2022-10-17 17:42:53,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:42:53,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08138c6c-53a3-45c6-8517-b59f463b975c/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:42:53,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08138c6c-53a3-45c6-8517-b59f463b975c/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:42:53,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08138c6c-53a3-45c6-8517-b59f463b975c/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:42:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure bio_endio [2022-10-17 17:42:53,162 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_endio [2022-10-17 17:42:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 17:42:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 17:42:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure vfs_fsync [2022-10-17 17:42:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure vfs_fsync [2022-10-17 17:42:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-10-17 17:42:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-10-17 17:42:53,164 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-10-17 17:42:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-10-17 17:42:53,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 17:42:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 17:42:53,164 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2022-10-17 17:42:53,165 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2022-10-17 17:42:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_uevent [2022-10-17 17:42:53,165 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_uevent [2022-10-17 17:42:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-10-17 17:42:53,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-10-17 17:42:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure transfer_xor [2022-10-17 17:42:53,166 INFO L138 BoogieDeclarations]: Found implementation of procedure transfer_xor [2022-10-17 17:42:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure invalidate_bdev [2022-10-17 17:42:53,166 INFO L138 BoogieDeclarations]: Found implementation of procedure invalidate_bdev [2022-10-17 17:42:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-10-17 17:42:53,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-10-17 17:42:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-17 17:42:53,167 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-17 17:42:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure huge_encode_dev [2022-10-17 17:42:53,167 INFO L138 BoogieDeclarations]: Found implementation of procedure huge_encode_dev [2022-10-17 17:42:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure lo_do_transfer [2022-10-17 17:42:53,167 INFO L138 BoogieDeclarations]: Found implementation of procedure lo_do_transfer [2022-10-17 17:42:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure loop_sysfs_exit [2022-10-17 17:42:53,168 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_sysfs_exit [2022-10-17 17:42:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-10-17 17:42:53,168 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-10-17 17:42:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_should_stop [2022-10-17 17:42:53,168 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_should_stop [2022-10-17 17:42:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 17:42:53,169 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 17:42:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure loop_alloc [2022-10-17 17:42:53,169 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_alloc [2022-10-17 17:42:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure loop_make_request [2022-10-17 17:42:53,169 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_make_request [2022-10-17 17:42:53,170 INFO L130 BoogieDeclarations]: Found specification of procedure __do_lo_send_write [2022-10-17 17:42:53,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_lo_send_write [2022-10-17 17:42:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure loop_get_status [2022-10-17 17:42:53,171 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_get_status [2022-10-17 17:42:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure loop_clr_fd [2022-10-17 17:42:53,172 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_clr_fd [2022-10-17 17:42:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 17:42:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure figure_loop_size [2022-10-17 17:42:53,174 INFO L138 BoogieDeclarations]: Found implementation of procedure figure_loop_size [2022-10-17 17:42:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl_by_bdev [2022-10-17 17:42:53,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl_by_bdev [2022-10-17 17:42:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 17:42:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-10-17 17:42:53,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-10-17 17:42:53,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:42:53,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 17:42:53,176 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-17 17:42:53,177 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-17 17:42:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-10-17 17:42:53,177 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-10-17 17:42:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2022-10-17 17:42:53,178 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2022-10-17 17:42:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-17 17:42:53,178 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-17 17:42:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure loop_set_capacity [2022-10-17 17:42:53,178 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_set_capacity [2022-10-17 17:42:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_empty [2022-10-17 17:42:53,179 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_empty [2022-10-17 17:42:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 17:42:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-17 17:42:53,180 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-17 17:42:53,180 INFO L130 BoogieDeclarations]: Found specification of procedure loop_free [2022-10-17 17:42:53,180 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_free [2022-10-17 17:42:53,180 INFO L130 BoogieDeclarations]: Found specification of procedure transfer_none [2022-10-17 17:42:53,181 INFO L138 BoogieDeclarations]: Found implementation of procedure transfer_none [2022-10-17 17:42:53,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 17:42:53,181 INFO L130 BoogieDeclarations]: Found specification of procedure bd_set_size [2022-10-17 17:42:53,181 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_set_size [2022-10-17 17:42:53,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:42:53,181 INFO L130 BoogieDeclarations]: Found specification of procedure fget [2022-10-17 17:42:53,182 INFO L138 BoogieDeclarations]: Found implementation of procedure fget [2022-10-17 17:42:53,183 INFO L130 BoogieDeclarations]: Found specification of procedure mapping_set_gfp_mask [2022-10-17 17:42:53,183 INFO L138 BoogieDeclarations]: Found implementation of procedure mapping_set_gfp_mask [2022-10-17 17:42:53,183 INFO L130 BoogieDeclarations]: Found specification of procedure xor_init [2022-10-17 17:42:53,183 INFO L138 BoogieDeclarations]: Found implementation of procedure xor_init [2022-10-17 17:42:53,183 INFO L130 BoogieDeclarations]: Found specification of procedure kmap [2022-10-17 17:42:53,184 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap [2022-10-17 17:42:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 17:42:53,185 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 17:42:53,185 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 17:42:53,186 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 17:42:53,187 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-10-17 17:42:53,187 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-10-17 17:42:53,187 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-10-17 17:42:53,187 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-10-17 17:42:53,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:42:53,187 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-10-17 17:42:53,188 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-10-17 17:42:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure __kmap_atomic [2022-10-17 17:42:53,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmap_atomic [2022-10-17 17:42:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-10-17 17:42:53,189 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-10-17 17:42:53,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 17:42:53,189 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-10-17 17:42:53,189 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-10-17 17:42:53,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:42:53,189 INFO L130 BoogieDeclarations]: Found specification of procedure get_loop_size [2022-10-17 17:42:53,190 INFO L138 BoogieDeclarations]: Found implementation of procedure get_loop_size [2022-10-17 17:42:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 17:42:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2022-10-17 17:42:53,194 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2022-10-17 17:42:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure loop_set_status [2022-10-17 17:42:53,194 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_set_status [2022-10-17 17:42:53,195 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-17 17:42:53,195 INFO L130 BoogieDeclarations]: Found specification of procedure lo_ioctl [2022-10-17 17:42:53,195 INFO L138 BoogieDeclarations]: Found implementation of procedure lo_ioctl [2022-10-17 17:42:53,195 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-10-17 17:42:53,196 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-10-17 17:42:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-10-17 17:42:53,196 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-10-17 17:42:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure loop_release_xfer [2022-10-17 17:42:53,196 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_release_xfer [2022-10-17 17:42:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2022-10-17 17:42:53,196 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2022-10-17 17:42:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure kunmap [2022-10-17 17:42:53,197 INFO L138 BoogieDeclarations]: Found implementation of procedure kunmap [2022-10-17 17:42:53,197 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-10-17 17:42:53,197 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-10-17 17:42:53,197 INFO L130 BoogieDeclarations]: Found specification of procedure loop_switch [2022-10-17 17:42:53,197 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_switch [2022-10-17 17:42:53,197 INFO L130 BoogieDeclarations]: Found specification of procedure mapping_gfp_mask [2022-10-17 17:42:53,197 INFO L138 BoogieDeclarations]: Found implementation of procedure mapping_gfp_mask [2022-10-17 17:42:53,197 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-17 17:42:53,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-17 17:42:53,197 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-10-17 17:42:53,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-10-17 17:42:53,198 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-10-17 17:42:53,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-10-17 17:42:53,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:42:53,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:42:53,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:42:53,198 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-17 17:42:53,198 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-17 17:42:53,871 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:42:53,877 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:42:54,707 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 17:42:57,100 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2022-10-17 17:42:57,101 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2022-10-17 17:42:57,130 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-10-17 17:42:57,130 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-10-17 17:42:57,709 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-10-17 17:42:57,709 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-10-17 17:42:58,212 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 17:42:58,214 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 17:43:00,473 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##72: assume !false; [2022-10-17 17:43:00,473 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##71: assume false; [2022-10-17 17:43:00,474 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2022-10-17 17:43:00,474 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2022-10-17 17:43:00,560 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:43:01,642 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:43:01,642 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 17:43:01,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:43:01 BoogieIcfgContainer [2022-10-17 17:43:01,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:43:01,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:43:01,649 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:43:01,653 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:43:01,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:42:50" (1/3) ... [2022-10-17 17:43:01,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a757cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:43:01, skipping insertion in model container [2022-10-17 17:43:01,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:52" (2/3) ... [2022-10-17 17:43:01,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a757cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:43:01, skipping insertion in model container [2022-10-17 17:43:01,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:43:01" (3/3) ... [2022-10-17 17:43:01,656 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-loop.ko.cil.out.i [2022-10-17 17:43:01,679 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:43:01,679 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 17:43:01,762 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:43:01,769 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;@7bf93a90, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:43:01,769 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 17:43:01,777 INFO L276 IsEmpty]: Start isEmpty. Operand has 832 states, 544 states have (on average 1.3639705882352942) internal successors, (742), 557 states have internal predecessors, (742), 222 states have call successors, (222), 64 states have call predecessors, (222), 64 states have return successors, (222), 221 states have call predecessors, (222), 222 states have call successors, (222) [2022-10-17 17:43:01,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 17:43:01,786 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:43:01,787 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:43:01,787 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:43:01,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:43:01,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1562410958, now seen corresponding path program 1 times [2022-10-17 17:43:01,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:43:01,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752816665] [2022-10-17 17:43:01,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:43:01,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:43:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:43:02,428 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 17:43:02,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:43:02,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752816665] [2022-10-17 17:43:02,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752816665] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:43:02,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:43:02,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 17:43:02,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439227129] [2022-10-17 17:43:02,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:43:02,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:43:02,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:43:02,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:43:02,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:43:02,482 INFO L87 Difference]: Start difference. First operand has 832 states, 544 states have (on average 1.3639705882352942) internal successors, (742), 557 states have internal predecessors, (742), 222 states have call successors, (222), 64 states have call predecessors, (222), 64 states have return successors, (222), 221 states have call predecessors, (222), 222 states have call successors, (222) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:43:05,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:43:05,006 INFO L93 Difference]: Finished difference Result 2323 states and 3332 transitions. [2022-10-17 17:43:05,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:43:05,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-17 17:43:05,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:43:05,041 INFO L225 Difference]: With dead ends: 2323 [2022-10-17 17:43:05,042 INFO L226 Difference]: Without dead ends: 1519 [2022-10-17 17:43:05,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 17:43:05,056 INFO L413 NwaCegarLoop]: 1218 mSDtfsCounter, 1043 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 2199 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-10-17 17:43:05,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1043 Valid, 2199 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-10-17 17:43:05,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2022-10-17 17:43:05,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1516. [2022-10-17 17:43:05,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1516 states, 991 states have (on average 1.3511604439959637) internal successors, (1339), 1010 states have internal predecessors, (1339), 403 states have call successors, (403), 122 states have call predecessors, (403), 121 states have return successors, (406), 399 states have call predecessors, (406), 401 states have call successors, (406) [2022-10-17 17:43:05,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 2148 transitions. [2022-10-17 17:43:05,236 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 2148 transitions. Word has length 8 [2022-10-17 17:43:05,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:43:05,237 INFO L495 AbstractCegarLoop]: Abstraction has 1516 states and 2148 transitions. [2022-10-17 17:43:05,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:43:05,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2148 transitions. [2022-10-17 17:43:05,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-17 17:43:05,245 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:43:05,246 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:43:05,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 17:43:05,246 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:43:05,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:43:05,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1137227914, now seen corresponding path program 1 times [2022-10-17 17:43:05,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:43:05,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035244352] [2022-10-17 17:43:05,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:43:05,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:43:05,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:43:05,455 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 17:43:05,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:43:05,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035244352] [2022-10-17 17:43:05,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035244352] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:43:05,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:43:05,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 17:43:05,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593106572] [2022-10-17 17:43:05,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:43:05,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 17:43:05,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:43:05,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 17:43:05,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 17:43:05,467 INFO L87 Difference]: Start difference. First operand 1516 states and 2148 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-17 17:43:08,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:43:08,333 INFO L93 Difference]: Finished difference Result 2980 states and 4228 transitions. [2022-10-17 17:43:08,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 17:43:08,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2022-10-17 17:43:08,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:43:08,349 INFO L225 Difference]: With dead ends: 2980 [2022-10-17 17:43:08,349 INFO L226 Difference]: Without dead ends: 1516 [2022-10-17 17:43:08,357 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 17:43:08,359 INFO L413 NwaCegarLoop]: 1020 mSDtfsCounter, 1 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3055 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-10-17 17:43:08,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3055 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-10-17 17:43:08,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2022-10-17 17:43:08,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1516. [2022-10-17 17:43:08,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1516 states, 991 states have (on average 1.3491422805247224) internal successors, (1337), 1010 states have internal predecessors, (1337), 403 states have call successors, (403), 122 states have call predecessors, (403), 121 states have return successors, (406), 399 states have call predecessors, (406), 401 states have call successors, (406) [2022-10-17 17:43:08,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 2146 transitions. [2022-10-17 17:43:08,475 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 2146 transitions. Word has length 42 [2022-10-17 17:43:08,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:43:08,476 INFO L495 AbstractCegarLoop]: Abstraction has 1516 states and 2146 transitions. [2022-10-17 17:43:08,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-17 17:43:08,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2146 transitions. [2022-10-17 17:43:08,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-17 17:43:08,481 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:43:08,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:43:08,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 17:43:08,482 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:43:08,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:43:08,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1671898830, now seen corresponding path program 1 times [2022-10-17 17:43:08,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:43:08,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964780560] [2022-10-17 17:43:08,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:43:08,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:43:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:43:08,680 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 17:43:08,680 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:43:08,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964780560] [2022-10-17 17:43:08,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964780560] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:43:08,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:43:08,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 17:43:08,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250746998] [2022-10-17 17:43:08,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:43:08,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 17:43:08,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:43:08,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 17:43:08,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 17:43:08,684 INFO L87 Difference]: Start difference. First operand 1516 states and 2146 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-17 17:43:11,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:43:11,102 INFO L93 Difference]: Finished difference Result 2980 states and 4226 transitions. [2022-10-17 17:43:11,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 17:43:11,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 44 [2022-10-17 17:43:11,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:43:11,115 INFO L225 Difference]: With dead ends: 2980 [2022-10-17 17:43:11,115 INFO L226 Difference]: Without dead ends: 1503 [2022-10-17 17:43:11,125 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 17:43:11,126 INFO L413 NwaCegarLoop]: 1018 mSDtfsCounter, 1 mSDsluCounter, 2338 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3051 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-10-17 17:43:11,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3051 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-10-17 17:43:11,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2022-10-17 17:43:11,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1503. [2022-10-17 17:43:11,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 984 states have (on average 1.3485772357723578) internal successors, (1327), 1003 states have internal predecessors, (1327), 399 states have call successors, (399), 120 states have call predecessors, (399), 119 states have return successors, (402), 395 states have call predecessors, (402), 397 states have call successors, (402) [2022-10-17 17:43:11,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 2128 transitions. [2022-10-17 17:43:11,230 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 2128 transitions. Word has length 44 [2022-10-17 17:43:11,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:43:11,230 INFO L495 AbstractCegarLoop]: Abstraction has 1503 states and 2128 transitions. [2022-10-17 17:43:11,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-17 17:43:11,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 2128 transitions. [2022-10-17 17:43:11,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-17 17:43:11,236 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:43:11,237 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:43:11,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 17:43:11,237 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:43:11,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:43:11,238 INFO L85 PathProgramCache]: Analyzing trace with hash -853923460, now seen corresponding path program 1 times [2022-10-17 17:43:11,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:43:11,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816427037] [2022-10-17 17:43:11,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:43:11,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:43:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:43:11,641 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 17:43:11,642 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:43:11,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816427037] [2022-10-17 17:43:11,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816427037] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:43:11,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:43:11,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 17:43:11,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779529547] [2022-10-17 17:43:11,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:43:11,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 17:43:11,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:43:11,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 17:43:11,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-17 17:43:11,645 INFO L87 Difference]: Start difference. First operand 1503 states and 2128 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-17 17:43:14,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:43:14,238 INFO L93 Difference]: Finished difference Result 2978 states and 4223 transitions. [2022-10-17 17:43:14,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 17:43:14,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2022-10-17 17:43:14,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:43:14,251 INFO L225 Difference]: With dead ends: 2978 [2022-10-17 17:43:14,251 INFO L226 Difference]: Without dead ends: 1509 [2022-10-17 17:43:14,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-17 17:43:14,261 INFO L413 NwaCegarLoop]: 970 mSDtfsCounter, 1276 mSDsluCounter, 2093 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1276 SdHoareTripleChecker+Valid, 2778 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-10-17 17:43:14,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1276 Valid, 2778 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-10-17 17:43:14,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2022-10-17 17:43:14,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1504. [2022-10-17 17:43:14,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1504 states, 985 states have (on average 1.348223350253807) internal successors, (1328), 1004 states have internal predecessors, (1328), 399 states have call successors, (399), 120 states have call predecessors, (399), 119 states have return successors, (402), 395 states have call predecessors, (402), 397 states have call successors, (402) [2022-10-17 17:43:14,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 2129 transitions. [2022-10-17 17:43:14,361 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 2129 transitions. Word has length 41 [2022-10-17 17:43:14,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:43:14,361 INFO L495 AbstractCegarLoop]: Abstraction has 1504 states and 2129 transitions. [2022-10-17 17:43:14,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-17 17:43:14,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 2129 transitions. [2022-10-17 17:43:14,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-17 17:43:14,364 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:43:14,364 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] [2022-10-17 17:43:14,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 17:43:14,365 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:43:14,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:43:14,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1610150771, now seen corresponding path program 1 times [2022-10-17 17:43:14,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:43:14,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970066381] [2022-10-17 17:43:14,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:43:14,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:43:14,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:43:14,775 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 17:43:14,776 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:43:14,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970066381] [2022-10-17 17:43:14,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970066381] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 17:43:14,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759437964] [2022-10-17 17:43:14,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:43:14,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:43:14,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08138c6c-53a3-45c6-8517-b59f463b975c/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:43:14,779 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08138c6c-53a3-45c6-8517-b59f463b975c/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:43:14,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08138c6c-53a3-45c6-8517-b59f463b975c/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 17:43:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:43:15,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 1275 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 17:43:15,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:43:15,690 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:43:15,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 17:43:15,810 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 17:43:15,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759437964] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 17:43:15,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1512288892] [2022-10-17 17:43:15,839 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-10-17 17:43:15,839 INFO L166 IcfgInterpreter]: Building call graph [2022-10-17 17:43:15,843 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-10-17 17:43:15,849 INFO L176 IcfgInterpreter]: Starting interpretation [2022-10-17 17:43:15,849 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-10-17 17:43:17,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:43:17,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:43:17,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:43:17,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:43:17,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:43:17,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:43:17,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:43:17,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:43:17,584 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 73 select indices, 73 select index equivalence classes, 186 disjoint index pairs (out of 2628 index pairs), introduced 73 new quantified variables, introduced 0 case distinctions, treesize of input 548 treesize of output 752 [2022-10-17 17:43:17,967 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 248 treesize of output 215 [2022-10-17 17:43:18,346 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 219