./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.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_9256cf20-c0a7-4a7d-bfd5-158dd6d7e2ab/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9256cf20-c0a7-4a7d-bfd5-158dd6d7e2ab/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9256cf20-c0a7-4a7d-bfd5-158dd6d7e2ab/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9256cf20-c0a7-4a7d-bfd5-158dd6d7e2ab/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9256cf20-c0a7-4a7d-bfd5-158dd6d7e2ab/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9256cf20-c0a7-4a7d-bfd5-158dd6d7e2ab/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b83c28af83745ba79af1b1ebec4b495db7aa2efb3702685bbdc4b86421ef4c0a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:43:13,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:43:13,292 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:43:13,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:43:13,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:43:13,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:43:13,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:43:13,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:43:13,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:43:13,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:43:13,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:43:13,342 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:43:13,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:43:13,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:43:13,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:43:13,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:43:13,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:43:13,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:43:13,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:43:13,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:43:13,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:43:13,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:43:13,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:43:13,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:43:13,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:43:13,376 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:43:13,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:43:13,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:43:13,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:43:13,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:43:13,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:43:13,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:43:13,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:43:13,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:43:13,386 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:43:13,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:43:13,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:43:13,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:43:13,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:43:13,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:43:13,391 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:43:13,392 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9256cf20-c0a7-4a7d-bfd5-158dd6d7e2ab/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:43:13,420 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:43:13,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:43:13,421 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:43:13,421 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:43:13,422 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:43:13,423 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:43:13,424 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:43:13,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:43:13,425 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:43:13,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:43:13,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:43:13,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:43:13,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:43:13,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:43:13,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:43:13,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:43:13,427 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:43:13,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:43:13,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:43:13,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:43:13,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:43:13,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:43:13,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:43:13,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:43:13,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:43:13,430 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:43:13,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:43:13,430 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:43:13,430 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:43:13,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:43:13,432 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_9256cf20-c0a7-4a7d-bfd5-158dd6d7e2ab/bin/uautomizer-J5u9QxTXDZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9256cf20-c0a7-4a7d-bfd5-158dd6d7e2ab/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b83c28af83745ba79af1b1ebec4b495db7aa2efb3702685bbdc4b86421ef4c0a [2022-10-17 10:43:13,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:43:13,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:43:13,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:43:13,849 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:43:13,850 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:43:13,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9256cf20-c0a7-4a7d-bfd5-158dd6d7e2ab/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-10-17 10:43:13,925 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9256cf20-c0a7-4a7d-bfd5-158dd6d7e2ab/bin/uautomizer-J5u9QxTXDZ/data/215ee106c/773cf337f2544a2c9e072913a00f3612/FLAGb6fd0b9b7 [2022-10-17 10:43:14,959 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:43:14,960 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9256cf20-c0a7-4a7d-bfd5-158dd6d7e2ab/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-10-17 10:43:15,016 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9256cf20-c0a7-4a7d-bfd5-158dd6d7e2ab/bin/uautomizer-J5u9QxTXDZ/data/215ee106c/773cf337f2544a2c9e072913a00f3612/FLAGb6fd0b9b7 [2022-10-17 10:43:15,335 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9256cf20-c0a7-4a7d-bfd5-158dd6d7e2ab/bin/uautomizer-J5u9QxTXDZ/data/215ee106c/773cf337f2544a2c9e072913a00f3612 [2022-10-17 10:43:15,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:43:15,339 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:43:15,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:43:15,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:43:15,345 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:43:15,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:43:15" (1/1) ... [2022-10-17 10:43:15,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d91f54b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:43:15, skipping insertion in model container [2022-10-17 10:43:15,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:43:15" (1/1) ... [2022-10-17 10:43:15,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:43:15,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:43:17,230 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_9256cf20-c0a7-4a7d-bfd5-158dd6d7e2ab/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i[216887,216900] [2022-10-17 10:43:17,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:43:17,272 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:43:17,629 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_9256cf20-c0a7-4a7d-bfd5-158dd6d7e2ab/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i[216887,216900] [2022-10-17 10:43:17,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:43:17,803 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:43:17,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:43:17 WrapperNode [2022-10-17 10:43:17,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:43:17,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:43:17,807 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:43:17,807 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:43:17,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:43:17" (1/1) ... [2022-10-17 10:43:17,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:43:17" (1/1) ... [2022-10-17 10:43:18,097 INFO L138 Inliner]: procedures = 187, calls = 873, calls flagged for inlining = 93, calls inlined = 91, statements flattened = 3223 [2022-10-17 10:43:18,098 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:43:18,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:43:18,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:43:18,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:43:18,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:43:17" (1/1) ... [2022-10-17 10:43:18,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:43:17" (1/1) ... [2022-10-17 10:43:18,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:43:17" (1/1) ... [2022-10-17 10:43:18,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:43:17" (1/1) ... [2022-10-17 10:43:18,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:43:17" (1/1) ... [2022-10-17 10:43:18,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:43:17" (1/1) ... [2022-10-17 10:43:18,338 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:43:17" (1/1) ... [2022-10-17 10:43:18,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:43:17" (1/1) ... [2022-10-17 10:43:18,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:43:18,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:43:18,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:43:18,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:43:18,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:43:17" (1/1) ... [2022-10-17 10:43:18,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:43:18,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9256cf20-c0a7-4a7d-bfd5-158dd6d7e2ab/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:43:18,415 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9256cf20-c0a7-4a7d-bfd5-158dd6d7e2ab/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:43:18,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9256cf20-c0a7-4a7d-bfd5-158dd6d7e2ab/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:43:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2022-10-17 10:43:18,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2022-10-17 10:43:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure sl_tx_timeout [2022-10-17 10:43:18,535 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_tx_timeout [2022-10-17 10:43:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 10:43:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-10-17 10:43:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2022-10-17 10:43:18,535 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2022-10-17 10:43:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 10:43:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 10:43:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 10:43:18,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 10:43:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:43:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-17 10:43:18,536 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-17 10:43:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-10-17 10:43:18,537 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-10-17 10:43:18,537 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-10-17 10:43:18,537 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-10-17 10:43:18,537 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2022-10-17 10:43:18,537 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2022-10-17 10:43:18,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 10:43:18,537 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 10:43:18,537 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-10-17 10:43:18,538 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-10-17 10:43:18,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 10:43:18,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 10:43:18,538 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-17 10:43:18,538 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-17 10:43:18,538 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-10-17 10:43:18,538 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-10-17 10:43:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 10:43:18,539 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 10:43:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_bufs [2022-10-17 10:43:18,539 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_bufs [2022-10-17 10:43:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:43:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 10:43:18,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 10:43:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-10-17 10:43:18,540 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-10-17 10:43:18,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-10-17 10:43:18,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-10-17 10:43:18,540 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 10:43:18,540 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 10:43:18,540 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-10-17 10:43:18,540 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-10-17 10:43:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-10-17 10:43:18,541 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-10-17 10:43:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:43:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2022-10-17 10:43:18,541 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2022-10-17 10:43:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-10-17 10:43:18,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-10-17 10:43:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure sl_bump [2022-10-17 10:43:18,542 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_bump [2022-10-17 10:43:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure slip_ioctl [2022-10-17 10:43:18,542 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_ioctl [2022-10-17 10:43:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:43:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-10-17 10:43:18,542 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-10-17 10:43:18,544 INFO L130 BoogieDeclarations]: Found specification of procedure slip_close [2022-10-17 10:43:18,544 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_close [2022-10-17 10:43:18,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:43:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:43:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-17 10:43:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-10-17 10:43:18,545 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-10-17 10:43:18,546 INFO L130 BoogieDeclarations]: Found specification of procedure slip_compat_ioctl [2022-10-17 10:43:18,546 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_compat_ioctl [2022-10-17 10:43:18,546 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-10-17 10:43:18,546 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-10-17 10:43:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure sl_get_stats64 [2022-10-17 10:43:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_get_stats64 [2022-10-17 10:43:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:43:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-10-17 10:43:18,548 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-10-17 10:43:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-10-17 10:43:18,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-10-17 10:43:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-10-17 10:43:18,548 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-10-17 10:43:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure sl_ioctl [2022-10-17 10:43:18,548 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_ioctl [2022-10-17 10:43:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2022-10-17 10:43:18,549 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2022-10-17 10:43:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:43:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-10-17 10:43:18,549 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-10-17 10:43:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:43:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure tty_devnum [2022-10-17 10:43:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_devnum [2022-10-17 10:43:18,550 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-17 10:43:18,567 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-17 10:43:18,567 INFO L130 BoogieDeclarations]: Found specification of procedure slip_hangup [2022-10-17 10:43:18,567 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_hangup [2022-10-17 10:43:18,567 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-17 10:43:18,568 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-17 10:43:18,568 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-10-17 10:43:18,568 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-10-17 10:43:18,568 INFO L130 BoogieDeclarations]: Found specification of procedure sl_change_mtu [2022-10-17 10:43:18,568 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_change_mtu [2022-10-17 10:43:18,568 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-10-17 10:43:18,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-10-17 10:43:18,569 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-17 10:43:18,569 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-17 10:43:18,569 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-10-17 10:43:18,569 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-10-17 10:43:18,569 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-17 10:43:18,569 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-17 10:43:18,569 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-17 10:43:18,569 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-17 10:43:18,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:43:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-10-17 10:43:18,570 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-10-17 10:43:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-10-17 10:43:18,570 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-10-17 10:43:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-10-17 10:43:18,570 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-10-17 10:43:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 10:43:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:43:18,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:43:18,571 INFO L130 BoogieDeclarations]: Found specification of procedure sl_unlock [2022-10-17 10:43:18,571 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_unlock [2022-10-17 10:43:18,571 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-10-17 10:43:18,571 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-10-17 10:43:19,205 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:43:19,209 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:43:19,458 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 10:43:24,081 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:43:24,100 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:43:24,100 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:43:24,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:43:24 BoogieIcfgContainer [2022-10-17 10:43:24,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:43:24,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:43:24,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:43:24,115 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:43:24,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:43:15" (1/3) ... [2022-10-17 10:43:24,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301896b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:43:24, skipping insertion in model container [2022-10-17 10:43:24,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:43:17" (2/3) ... [2022-10-17 10:43:24,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301896b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:43:24, skipping insertion in model container [2022-10-17 10:43:24,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:43:24" (3/3) ... [2022-10-17 10:43:24,120 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-10-17 10:43:24,143 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:43:24,143 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:43:24,246 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:43:24,254 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@24a39fad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:43:24,255 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:43:24,265 INFO L276 IsEmpty]: Start isEmpty. Operand has 1110 states, 820 states have (on average 1.425609756097561) internal successors, (1169), 852 states have internal predecessors, (1169), 236 states have call successors, (236), 53 states have call predecessors, (236), 52 states have return successors, (231), 229 states have call predecessors, (231), 231 states have call successors, (231) [2022-10-17 10:43:24,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-10-17 10:43:24,294 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:43:24,295 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-10-17 10:43:24,295 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:43:24,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:43:24,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1607484925, now seen corresponding path program 1 times [2022-10-17 10:43:24,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:43:24,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558102964] [2022-10-17 10:43:24,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:24,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:43:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:24,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:43:24,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:25,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:43:25,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:25,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:43:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:25,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:43:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:25,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:43:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:25,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:43:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:25,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-17 10:43:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:25,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:43:25,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:25,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:43:25,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:25,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-17 10:43:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:25,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-17 10:43:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:25,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-17 10:43:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:25,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:43:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:25,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:43:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:25,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-17 10:43:25,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:25,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:43:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:25,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:43:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:25,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-17 10:43:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:25,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-17 10:43:25,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:25,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-17 10:43:25,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:25,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-17 10:43:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:25,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-10-17 10:43:25,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:25,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-17 10:43:25,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:25,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-10-17 10:43:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:25,494 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-10-17 10:43:25,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:43:25,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558102964] [2022-10-17 10:43:25,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558102964] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:43:25,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:43:25,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:43:25,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082283682] [2022-10-17 10:43:25,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:43:25,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:43:25,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:43:25,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:43:25,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:43:25,550 INFO L87 Difference]: Start difference. First operand has 1110 states, 820 states have (on average 1.425609756097561) internal successors, (1169), 852 states have internal predecessors, (1169), 236 states have call successors, (236), 53 states have call predecessors, (236), 52 states have return successors, (231), 229 states have call predecessors, (231), 231 states have call successors, (231) Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-17 10:43:27,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 10:43:31,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:43:31,631 INFO L93 Difference]: Finished difference Result 2346 states and 3526 transitions. [2022-10-17 10:43:31,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:43:31,633 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 161 [2022-10-17 10:43:31,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:43:31,674 INFO L225 Difference]: With dead ends: 2346 [2022-10-17 10:43:31,675 INFO L226 Difference]: Without dead ends: 1198 [2022-10-17 10:43:31,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:43:31,701 INFO L413 NwaCegarLoop]: 1533 mSDtfsCounter, 1208 mSDsluCounter, 1660 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 678 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 3193 SdHoareTripleChecker+Invalid, 1950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 678 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-10-17 10:43:31,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1262 Valid, 3193 Invalid, 1950 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [678 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-10-17 10:43:31,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2022-10-17 10:43:31,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 1068. [2022-10-17 10:43:31,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 791 states have (on average 1.413400758533502) internal successors, (1118), 815 states have internal predecessors, (1118), 224 states have call successors, (224), 52 states have call predecessors, (224), 52 states have return successors, (224), 222 states have call predecessors, (224), 224 states have call successors, (224) [2022-10-17 10:43:31,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1566 transitions. [2022-10-17 10:43:31,947 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1566 transitions. Word has length 161 [2022-10-17 10:43:31,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:43:31,953 INFO L495 AbstractCegarLoop]: Abstraction has 1068 states and 1566 transitions. [2022-10-17 10:43:31,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-17 10:43:31,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1566 transitions. [2022-10-17 10:43:31,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-10-17 10:43:31,968 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:43:31,971 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-10-17 10:43:31,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:43:31,971 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:43:31,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:43:31,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1068684857, now seen corresponding path program 1 times [2022-10-17 10:43:31,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:43:31,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835563754] [2022-10-17 10:43:31,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:31,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:43:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:32,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:43:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:32,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:43:32,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:32,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:43:32,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:32,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:43:32,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:32,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:43:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:32,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:43:32,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:32,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-17 10:43:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:32,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:43:32,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:32,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:43:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:32,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-17 10:43:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:32,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-17 10:43:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:32,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-17 10:43:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:32,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:43:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:32,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:43:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:32,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-17 10:43:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:32,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:43:32,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:32,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:43:32,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:32,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-17 10:43:32,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:32,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-17 10:43:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:32,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-17 10:43:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:32,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-17 10:43:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:32,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-10-17 10:43:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:32,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-17 10:43:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:32,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-10-17 10:43:32,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:32,579 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-10-17 10:43:32,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:43:32,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835563754] [2022-10-17 10:43:32,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835563754] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:43:32,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:43:32,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:43:32,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136869733] [2022-10-17 10:43:32,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:43:32,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:43:32,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:43:32,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:43:32,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:43:32,585 INFO L87 Difference]: Start difference. First operand 1068 states and 1566 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-10-17 10:43:36,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 10:43:41,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:43:41,492 INFO L93 Difference]: Finished difference Result 2892 states and 4264 transitions. [2022-10-17 10:43:41,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-17 10:43:41,493 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 161 [2022-10-17 10:43:41,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:43:41,511 INFO L225 Difference]: With dead ends: 2892 [2022-10-17 10:43:41,511 INFO L226 Difference]: Without dead ends: 1860 [2022-10-17 10:43:41,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-10-17 10:43:41,518 INFO L413 NwaCegarLoop]: 1537 mSDtfsCounter, 2564 mSDsluCounter, 2300 mSDsCounter, 0 mSdLazyCounter, 2461 mSolverCounterSat, 1275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2705 SdHoareTripleChecker+Valid, 3837 SdHoareTripleChecker+Invalid, 3736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1275 IncrementalHoareTripleChecker+Valid, 2461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-10-17 10:43:41,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2705 Valid, 3837 Invalid, 3736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1275 Valid, 2461 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2022-10-17 10:43:41,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2022-10-17 10:43:41,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1628. [2022-10-17 10:43:41,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1195 states have (on average 1.397489539748954) internal successors, (1670), 1228 states have internal predecessors, (1670), 341 states have call successors, (341), 91 states have call predecessors, (341), 91 states have return successors, (341), 338 states have call predecessors, (341), 341 states have call successors, (341) [2022-10-17 10:43:41,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2352 transitions. [2022-10-17 10:43:41,673 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2352 transitions. Word has length 161 [2022-10-17 10:43:41,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:43:41,675 INFO L495 AbstractCegarLoop]: Abstraction has 1628 states and 2352 transitions. [2022-10-17 10:43:41,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-10-17 10:43:41,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2352 transitions. [2022-10-17 10:43:41,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-10-17 10:43:41,688 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:43:41,688 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 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] [2022-10-17 10:43:41,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:43:41,689 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:43:41,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:43:41,689 INFO L85 PathProgramCache]: Analyzing trace with hash -194454501, now seen corresponding path program 1 times [2022-10-17 10:43:41,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:43:41,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909989647] [2022-10-17 10:43:41,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:41,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:43:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:43:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:43:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:43:42,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:43:42,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:43:42,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:43:42,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-17 10:43:42,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:43:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:43:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-17 10:43:42,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-17 10:43:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-17 10:43:42,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:43:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:43:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-17 10:43:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:43:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:43:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-17 10:43:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-17 10:43:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-17 10:43:42,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-17 10:43:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-10-17 10:43:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-17 10:43:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-10-17 10:43:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-10-17 10:43:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:43:42,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-10-17 10:43:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:43:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:43:42,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-10-17 10:43:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:43:42,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:43:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:42,565 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2022-10-17 10:43:42,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:43:42,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909989647] [2022-10-17 10:43:42,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909989647] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:43:42,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:43:42,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:43:42,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029412865] [2022-10-17 10:43:42,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:43:42,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:43:42,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:43:42,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:43:42,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:43:42,568 INFO L87 Difference]: Start difference. First operand 1628 states and 2352 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20)