./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8 --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 d3eedf009c0354e40f9e91d5f02bdbd29fc69486fea85bd401e2764ccaedb5c6 --- 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-e04fb08 [2022-11-16 12:51:59,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:51:59,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:51:59,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:51:59,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:51:59,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:51:59,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:51:59,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:51:59,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:51:59,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:51:59,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:51:59,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:51:59,348 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:51:59,352 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:51:59,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:51:59,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:51:59,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:51:59,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:51:59,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:51:59,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:51:59,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:51:59,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:51:59,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:51:59,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:51:59,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:51:59,386 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:51:59,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:51:59,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:51:59,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:51:59,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:51:59,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:51:59,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:51:59,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:51:59,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:51:59,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:51:59,392 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:51:59,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:51:59,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:51:59,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:51:59,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:51:59,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:51:59,396 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 12:51:59,424 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:51:59,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:51:59,425 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:51:59,425 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:51:59,426 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:51:59,426 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:51:59,427 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:51:59,427 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:51:59,428 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:51:59,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:51:59,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:51:59,428 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:51:59,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:51:59,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:51:59,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:51:59,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:51:59,429 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:51:59,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:51:59,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:51:59,430 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:51:59,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:51:59,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:51:59,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:51:59,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:51:59,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:51:59,431 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:51:59,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:51:59,432 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:51:59,432 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:51:59,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:51:59,432 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_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3eedf009c0354e40f9e91d5f02bdbd29fc69486fea85bd401e2764ccaedb5c6 [2022-11-16 12:51:59,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:51:59,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:51:59,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:51:59,738 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:51:59,740 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:51:59,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i [2022-11-16 12:51:59,839 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/data/cab0e5de4/ccf5cea73bbc425882848b954d3545f7/FLAGfc44fbe6b [2022-11-16 12:52:01,025 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:52:01,026 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i [2022-11-16 12:52:01,107 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/data/cab0e5de4/ccf5cea73bbc425882848b954d3545f7/FLAGfc44fbe6b [2022-11-16 12:52:01,229 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/data/cab0e5de4/ccf5cea73bbc425882848b954d3545f7 [2022-11-16 12:52:01,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:52:01,235 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:52:01,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:52:01,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:52:01,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:52:01,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:52:01" (1/1) ... [2022-11-16 12:52:01,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae67483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:01, skipping insertion in model container [2022-11-16 12:52:01,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:52:01" (1/1) ... [2022-11-16 12:52:01,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:52:01,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:52:02,671 WARN L229 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_191e27aa-951e-444a-8992-33556c2cc7a4/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i[223980,223993] [2022-11-16 12:52:06,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:52:06,459 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:52:06,647 WARN L229 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_191e27aa-951e-444a-8992-33556c2cc7a4/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i[223980,223993] [2022-11-16 12:52:07,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:52:07,713 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:52:07,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:07 WrapperNode [2022-11-16 12:52:07,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:52:07,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:52:07,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:52:07,718 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:52:07,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:07" (1/1) ... [2022-11-16 12:52:07,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:07" (1/1) ... [2022-11-16 12:52:08,682 INFO L138 Inliner]: procedures = 401, calls = 9042, calls flagged for inlining = 179, calls inlined = 176, statements flattened = 16479 [2022-11-16 12:52:08,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:52:08,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:52:08,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:52:08,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:52:08,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:07" (1/1) ... [2022-11-16 12:52:08,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:07" (1/1) ... [2022-11-16 12:52:08,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:07" (1/1) ... [2022-11-16 12:52:08,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:07" (1/1) ... [2022-11-16 12:52:09,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:07" (1/1) ... [2022-11-16 12:52:09,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:07" (1/1) ... [2022-11-16 12:52:09,424 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:07" (1/1) ... [2022-11-16 12:52:09,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:07" (1/1) ... [2022-11-16 12:52:09,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:52:09,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:52:09,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:52:09,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:52:09,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:07" (1/1) ... [2022-11-16 12:52:09,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:52:09,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:52:09,657 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:52:09,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:52:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-16 12:52:09,717 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-16 12:52:09,718 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_phy_iq_calibrate [2022-11-16 12:52:09,718 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_phy_iq_calibrate [2022-11-16 12:52:09,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 12:52:09,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 12:52:09,718 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_deinit_sw_leds [2022-11-16 12:52:09,719 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_deinit_sw_leds [2022-11-16 12:52:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_set_key [2022-11-16 12:52:09,719 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_set_key [2022-11-16 12:52:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_set_media_status [2022-11-16 12:52:09,719 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_set_media_status [2022-11-16 12:52:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-11-16 12:52:09,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-11-16 12:52:09,720 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_word [2022-11-16 12:52:09,720 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_word [2022-11-16 12:52:09,720 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_enable_hw_security_config [2022-11-16 12:52:09,720 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_enable_hw_security_config [2022-11-16 12:52:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_rfreg_delay [2022-11-16 12:52:09,721 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_rfreg_delay [2022-11-16 12:52:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-16 12:52:09,721 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-16 12:52:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_set_network_type [2022-11-16 12:52:09,722 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_set_network_type [2022-11-16 12:52:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92c_query_rxpwrpercentage [2022-11-16 12:52:09,722 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92c_query_rxpwrpercentage [2022-11-16 12:52:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_byte [2022-11-16 12:52:09,722 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_byte [2022-11-16 12:52:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_addr_delay [2022-11-16 12:52:09,723 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_addr_delay [2022-11-16 12:52:09,723 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_init_sw_leds [2022-11-16 12:52:09,723 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_init_sw_leds [2022-11-16 12:52:09,723 INFO L130 BoogieDeclarations]: Found specification of procedure _DisableAnalog [2022-11-16 12:52:09,723 INFO L138 BoogieDeclarations]: Found implementation of procedure _DisableAnalog [2022-11-16 12:52:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-16 12:52:09,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-16 12:52:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 12:52:09,724 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 12:52:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_fill_fake_txdesc [2022-11-16 12:52:09,725 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_fill_fake_txdesc [2022-11-16 12:52:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl_tx_desc_checksum [2022-11-16 12:52:09,725 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl_tx_desc_checksum [2022-11-16 12:52:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_set_qos [2022-11-16 12:52:09,726 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_set_qos [2022-11-16 12:52:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92c_phy_rf_serial_read [2022-11-16 12:52:09,726 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92c_phy_rf_serial_read [2022-11-16 12:52:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_dword [2022-11-16 12:52:09,726 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_dword [2022-11-16 12:52:09,727 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_gpio_radio_on_off_checking [2022-11-16 12:52:09,727 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_gpio_radio_on_off_checking [2022-11-16 12:52:09,727 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_set_check_bssid [2022-11-16 12:52:09,728 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_set_check_bssid [2022-11-16 12:52:09,728 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_mgmt [2022-11-16 12:52:09,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_mgmt [2022-11-16 12:52:09,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-16 12:52:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-16 12:52:09,729 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-16 12:52:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:52:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_update_hal_rate_tbl [2022-11-16 12:52:09,730 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_update_hal_rate_tbl [2022-11-16 12:52:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure get_rf_type [2022-11-16 12:52:09,731 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rf_type [2022-11-16 12:52:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 12:52:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 12:52:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:52:09,732 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_read_chip_version [2022-11-16 12:52:09,732 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_read_chip_version [2022-11-16 12:52:09,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 12:52:09,733 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 12:52:09,733 INFO L130 BoogieDeclarations]: Found specification of procedure dm_writepowerindex [2022-11-16 12:52:09,733 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_writepowerindex [2022-11-16 12:52:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_cmd_send_packet [2022-11-16 12:52:09,734 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_cmd_send_packet [2022-11-16 12:52:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-16 12:52:09,734 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-16 12:52:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_update_channel_access_setting [2022-11-16 12:52:09,735 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_update_channel_access_setting [2022-11-16 12:52:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_init_led [2022-11-16 12:52:09,735 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_init_led [2022-11-16 12:52:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_phy_set_bb_reg [2022-11-16 12:52:09,735 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_phy_set_bb_reg [2022-11-16 12:52:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_translate_rx_signal_stuff [2022-11-16 12:52:09,736 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_translate_rx_signal_stuff [2022-11-16 12:52:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2022-11-16 12:52:09,736 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2022-11-16 12:52:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_stop_tx_beacon [2022-11-16 12:52:09,737 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_stop_tx_beacon [2022-11-16 12:52:09,737 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_beacon [2022-11-16 12:52:09,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_beacon [2022-11-16 12:52:09,737 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2022-11-16 12:52:09,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2022-11-16 12:52:09,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-11-16 12:52:09,738 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_phy_query_bb_reg [2022-11-16 12:52:09,739 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_phy_query_bb_reg [2022-11-16 12:52:09,739 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2022-11-16 12:52:09,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2022-11-16 12:52:09,740 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_set_beacon_related_registers [2022-11-16 12:52:09,740 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_set_beacon_related_registers [2022-11-16 12:52:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:52:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92c_init_chipN_reg_priority [2022-11-16 12:52:09,742 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92c_init_chipN_reg_priority [2022-11-16 12:52:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure _DisableRFAFEAndResetBB [2022-11-16 12:52:09,742 INFO L138 BoogieDeclarations]: Found implementation of procedure _DisableRFAFEAndResetBB [2022-11-16 12:52:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:52:09,743 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-16 12:52:09,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-16 12:52:09,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:52:09,743 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-16 12:52:09,744 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_resume_tx_beacon [2022-11-16 12:52:09,744 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_resume_tx_beacon [2022-11-16 12:52:09,744 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_led_control [2022-11-16 12:52:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_led_control [2022-11-16 12:52:09,745 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_disable_interrupt [2022-11-16 12:52:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_disable_interrupt [2022-11-16 12:52:09,745 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_phy_set_rf_power_state [2022-11-16 12:52:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_phy_set_rf_power_state [2022-11-16 12:52:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_dm_watchdog [2022-11-16 12:52:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_dm_watchdog [2022-11-16 12:52:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-16 12:52:09,750 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-16 12:52:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_phy_sw_chnl [2022-11-16 12:52:09,750 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_phy_sw_chnl [2022-11-16 12:52:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_cam_add_one_entry [2022-11-16 12:52:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_cam_add_one_entry [2022-11-16 12:52:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:52:09,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:52:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_init_sw_vars [2022-11-16 12:52:09,755 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_init_sw_vars [2022-11-16 12:52:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92c_signal_scale_mapping [2022-11-16 12:52:09,761 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92c_signal_scale_mapping [2022-11-16 12:52:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_phy_set_bw_mode [2022-11-16 12:52:09,761 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_phy_set_bw_mode [2022-11-16 12:52:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_tx_fill_cmddesc [2022-11-16 12:52:09,761 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_tx_fill_cmddesc [2022-11-16 12:52:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 12:52:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 12:52:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 12:52:09,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 12:52:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92c_phy_calculate_bit_shift [2022-11-16 12:52:09,762 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92c_phy_calculate_bit_shift [2022-11-16 12:52:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_DA [2022-11-16 12:52:09,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_DA [2022-11-16 12:52:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_rfreg [2022-11-16 12:52:09,763 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_rfreg [2022-11-16 12:52:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure _DisableGPIO [2022-11-16 12:52:09,763 INFO L138 BoogieDeclarations]: Found implementation of procedure _DisableGPIO [2022-11-16 12:52:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-16 12:52:09,763 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-16 12:52:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_enable_interrupt [2022-11-16 12:52:09,764 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_enable_interrupt [2022-11-16 12:52:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_phy_set_bw_mode_callback [2022-11-16 12:52:09,764 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_phy_set_bw_mode_callback [2022-11-16 12:52:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2022-11-16 12:52:09,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2022-11-16 12:52:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_hw_init [2022-11-16 12:52:09,765 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_hw_init [2022-11-16 12:52:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2022-11-16 12:52:09,765 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2022-11-16 12:52:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_deInit_led [2022-11-16 12:52:09,766 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_deInit_led [2022-11-16 12:52:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data_qos [2022-11-16 12:52:09,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data_qos [2022-11-16 12:52:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_byte [2022-11-16 12:52:09,766 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_byte [2022-11-16 12:52:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 12:52:09,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 12:52:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_word [2022-11-16 12:52:09,767 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_word [2022-11-16 12:52:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_rx_query_desc [2022-11-16 12:52:09,767 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_rx_query_desc [2022-11-16 12:52:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 12:52:09,767 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 12:52:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 12:52:09,768 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 12:52:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_phy_config_rf_with_headerfile [2022-11-16 12:52:09,768 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_phy_config_rf_with_headerfile [2022-11-16 12:52:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_dm_dynamic_txpower [2022-11-16 12:52:09,768 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_dm_dynamic_txpower [2022-11-16 12:52:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_phy_query_rf_reg [2022-11-16 12:52:09,769 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_phy_query_rf_reg [2022-11-16 12:52:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_phy_config_bb_with_headerfile [2022-11-16 12:52:09,769 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_phy_config_bb_with_headerfile [2022-11-16 12:52:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:52:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_phy_rf6052_set_cck_txpower [2022-11-16 12:52:09,770 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_phy_rf6052_set_cck_txpower [2022-11-16 12:52:09,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:52:09,770 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_get_hw_reg [2022-11-16 12:52:09,770 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_get_hw_reg [2022-11-16 12:52:09,770 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_deinit_sw_vars [2022-11-16 12:52:09,770 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_deinit_sw_vars [2022-11-16 12:52:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_phy_config_bb_with_pgheaderfile [2022-11-16 12:52:09,771 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_phy_config_bb_with_pgheaderfile [2022-11-16 12:52:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 12:52:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-16 12:52:09,771 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-16 12:52:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_fill_h2c_cmd [2022-11-16 12:52:09,772 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_fill_h2c_cmd [2022-11-16 12:52:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-16 12:52:09,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-16 12:52:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_phy_set_rf_reg [2022-11-16 12:52:09,772 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_phy_set_rf_reg [2022-11-16 12:52:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_rfreg [2022-11-16 12:52:09,773 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_rfreg [2022-11-16 12:52:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure rtlwifi_rate_mapping [2022-11-16 12:52:09,773 INFO L138 BoogieDeclarations]: Found implementation of procedure rtlwifi_rate_mapping [2022-11-16 12:52:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-11-16 12:52:09,773 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-11-16 12:52:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2022-11-16 12:52:09,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2022-11-16 12:52:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_phy_scan_operation_backup [2022-11-16 12:52:09,774 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_phy_scan_operation_backup [2022-11-16 12:52:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_phy_lc_calibrate [2022-11-16 12:52:09,774 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_phy_lc_calibrate [2022-11-16 12:52:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_set_beacon_interval [2022-11-16 12:52:09,774 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_set_beacon_interval [2022-11-16 12:52:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:52:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_phy_rf6052_config [2022-11-16 12:52:09,775 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_phy_rf6052_config [2022-11-16 12:52:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 12:52:09,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 12:52:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_bbreg [2022-11-16 12:52:09,776 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_bbreg [2022-11-16 12:52:09,776 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_tx_fill_desc [2022-11-16 12:52:09,776 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_tx_fill_desc [2022-11-16 12:52:09,776 INFO L130 BoogieDeclarations]: Found specification of procedure _ResetDigitalProcedure1 [2022-11-16 12:52:09,776 INFO L138 BoogieDeclarations]: Found implementation of procedure _ResetDigitalProcedure1 [2022-11-16 12:52:09,776 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_llt_write [2022-11-16 12:52:09,777 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_llt_write [2022-11-16 12:52:09,777 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_bbreg [2022-11-16 12:52:09,777 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_bbreg [2022-11-16 12:52:09,777 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-16 12:52:09,777 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-16 12:52:09,777 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_RXCB [2022-11-16 12:52:09,777 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_RXCB [2022-11-16 12:52:09,778 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-16 12:52:09,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-16 12:52:09,778 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_update_interrupt_mask [2022-11-16 12:52:09,778 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_update_interrupt_mask [2022-11-16 12:52:09,778 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_set_bcn_ctrl_reg [2022-11-16 12:52:09,778 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_set_bcn_ctrl_reg [2022-11-16 12:52:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_set_hw_reg [2022-11-16 12:52:09,779 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_set_hw_reg [2022-11-16 12:52:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_phy_rf6052_set_ofdm_txpower [2022-11-16 12:52:09,779 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_phy_rf6052_set_ofdm_txpower [2022-11-16 12:52:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92c_phy_fw_rf_serial_read [2022-11-16 12:52:09,781 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92c_phy_fw_rf_serial_read [2022-11-16 12:52:09,788 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-16 12:52:09,788 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-16 12:52:09,788 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_dword [2022-11-16 12:52:09,788 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_dword [2022-11-16 12:52:09,788 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92c_get_chnl_group [2022-11-16 12:52:09,789 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92c_get_chnl_group [2022-11-16 12:52:09,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:52:09,789 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_card_disable [2022-11-16 12:52:09,789 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_card_disable [2022-11-16 12:52:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2022-11-16 12:52:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-16 12:52:09,791 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-16 12:52:11,379 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:52:11,383 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:52:12,053 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 12:53:10,983 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:53:11,024 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:53:11,025 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 12:53:11,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:53:11 BoogieIcfgContainer [2022-11-16 12:53:11,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:53:11,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:53:11,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:53:11,042 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:53:11,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:52:01" (1/3) ... [2022-11-16 12:53:11,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2269a28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:53:11, skipping insertion in model container [2022-11-16 12:53:11,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:07" (2/3) ... [2022-11-16 12:53:11,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2269a28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:53:11, skipping insertion in model container [2022-11-16 12:53:11,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:53:11" (3/3) ... [2022-11-16 12:53:11,048 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i [2022-11-16 12:53:11,073 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:53:11,073 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:53:11,236 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:53:11,244 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;@2e2ce186, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:53:11,244 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:53:11,268 INFO L276 IsEmpty]: Start isEmpty. Operand has 4529 states, 3181 states have (on average 1.4309965419679347) internal successors, (4552), 3265 states have internal predecessors, (4552), 1228 states have call successors, (1228), 119 states have call predecessors, (1228), 118 states have return successors, (1223), 1191 states have call predecessors, (1223), 1223 states have call successors, (1223) [2022-11-16 12:53:11,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-11-16 12:53:11,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:53:11,318 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:53:11,318 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:53:11,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:53:11,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1379885586, now seen corresponding path program 1 times [2022-11-16 12:53:11,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:53:11,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136850155] [2022-11-16 12:53:11,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:53:11,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:53:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:13,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:53:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:13,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:53:13,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:13,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:53:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:13,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:53:13,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:13,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:53:13,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:13,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:53:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:13,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:53:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:53:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:53:14,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 12:53:14,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:53:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 12:53:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 12:53:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 12:53:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 12:53:14,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 12:53:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:53:14,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:53:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 12:53:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:53:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-16 12:53:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:53:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 12:53:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:53:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-16 12:53:14,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 12:53:14,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-16 12:53:14,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-16 12:53:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-16 12:53:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-16 12:53:14,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-16 12:53:14,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-16 12:53:14,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-16 12:53:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-16 12:53:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-11-16 12:53:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:14,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1180 trivial. 0 not checked. [2022-11-16 12:53:14,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:53:14,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136850155] [2022-11-16 12:53:14,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136850155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:53:14,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:53:14,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:53:14,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414871814] [2022-11-16 12:53:14,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:53:14,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:53:14,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:53:14,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:53:14,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:53:14,686 INFO L87 Difference]: Start difference. First operand has 4529 states, 3181 states have (on average 1.4309965419679347) internal successors, (4552), 3265 states have internal predecessors, (4552), 1228 states have call successors, (1228), 119 states have call predecessors, (1228), 118 states have return successors, (1223), 1191 states have call predecessors, (1223), 1223 states have call successors, (1223) Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2022-11-16 12:53:18,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:53:20,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:53:22,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:53:28,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:53:34,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:53:42,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:53:43,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:53:56,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:54:22,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:54:28,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:54:28,465 INFO L93 Difference]: Finished difference Result 13809 states and 21551 transitions. [2022-11-16 12:54:28,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:54:28,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 228 [2022-11-16 12:54:28,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:54:28,580 INFO L225 Difference]: With dead ends: 13809 [2022-11-16 12:54:28,580 INFO L226 Difference]: Without dead ends: 9261 [2022-11-16 12:54:28,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:54:28,620 INFO L413 NwaCegarLoop]: 5729 mSDtfsCounter, 11491 mSDsluCounter, 9093 mSDsCounter, 0 mSdLazyCounter, 10206 mSolverCounterSat, 7404 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12225 SdHoareTripleChecker+Valid, 14822 SdHoareTripleChecker+Invalid, 17615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 7404 IncrementalHoareTripleChecker+Valid, 10206 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:54:28,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12225 Valid, 14822 Invalid, 17615 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [7404 Valid, 10206 Invalid, 5 Unknown, 0 Unchecked, 72.2s Time] [2022-11-16 12:54:28,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9261 states. [2022-11-16 12:54:30,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9261 to 8760. [2022-11-16 12:54:30,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8760 states, 6171 states have (on average 1.4300761626964835) internal successors, (8825), 6325 states have internal predecessors, (8825), 2357 states have call successors, (2357), 233 states have call predecessors, (2357), 231 states have return successors, (2356), 2291 states have call predecessors, (2356), 2356 states have call successors, (2356) [2022-11-16 12:54:30,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8760 states to 8760 states and 13538 transitions. [2022-11-16 12:54:30,270 INFO L78 Accepts]: Start accepts. Automaton has 8760 states and 13538 transitions. Word has length 228 [2022-11-16 12:54:30,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:54:30,276 INFO L495 AbstractCegarLoop]: Abstraction has 8760 states and 13538 transitions. [2022-11-16 12:54:30,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2022-11-16 12:54:30,276 INFO L276 IsEmpty]: Start isEmpty. Operand 8760 states and 13538 transitions. [2022-11-16 12:54:30,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-11-16 12:54:30,291 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:54:30,291 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:54:30,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:54:30,292 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:54:30,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:54:30,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1384567781, now seen corresponding path program 1 times [2022-11-16 12:54:30,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:54:30,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438256853] [2022-11-16 12:54:30,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:54:30,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:54:31,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:33,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:54:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:33,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:54:33,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:33,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:54:33,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:33,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:54:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:33,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:54:33,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:33,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:54:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:33,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:54:33,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:33,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:54:33,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:33,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:54:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:33,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 12:54:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:33,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:54:33,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:33,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 12:54:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:33,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 12:54:33,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:33,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 12:54:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:33,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 12:54:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:33,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 12:54:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:33,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:54:33,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:33,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:54:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:33,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 12:54:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:33,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:54:33,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:33,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-16 12:54:33,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:33,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:54:33,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:33,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 12:54:33,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:34,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:54:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:34,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-16 12:54:34,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:34,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 12:54:34,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:34,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-16 12:54:34,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:34,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-16 12:54:34,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:34,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-16 12:54:34,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:34,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-16 12:54:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:34,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-16 12:54:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:34,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-16 12:54:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:34,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-16 12:54:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:34,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-16 12:54:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:34,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-11-16 12:54:34,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:34,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-11-16 12:54:34,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:54:34,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-11-16 12:54:34,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:54:34,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438256853] [2022-11-16 12:54:34,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438256853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:54:34,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:54:34,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:54:34,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617220985] [2022-11-16 12:54:34,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:54:34,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:54:34,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:54:34,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:54:34,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:54:34,347 INFO L87 Difference]: Start difference. First operand 8760 states and 13538 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-16 12:54:38,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:54:40,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:54:42,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:54:51,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:55:12,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:55:15,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:55:58,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:56:03,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:56:03,969 INFO L93 Difference]: Finished difference Result 26922 states and 41783 transitions. [2022-11-16 12:56:03,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:56:03,970 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 238 [2022-11-16 12:56:03,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:56:04,097 INFO L225 Difference]: With dead ends: 26922 [2022-11-16 12:56:04,097 INFO L226 Difference]: Without dead ends: 18230 [2022-11-16 12:56:04,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:56:04,151 INFO L413 NwaCegarLoop]: 5885 mSDtfsCounter, 11320 mSDsluCounter, 18242 mSDsCounter, 0 mSdLazyCounter, 18312 mSolverCounterSat, 7340 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12079 SdHoareTripleChecker+Valid, 24127 SdHoareTripleChecker+Invalid, 25658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 7340 IncrementalHoareTripleChecker+Valid, 18312 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 87.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:56:04,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12079 Valid, 24127 Invalid, 25658 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [7340 Valid, 18312 Invalid, 6 Unknown, 0 Unchecked, 87.8s Time] [2022-11-16 12:56:04,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18230 states. [2022-11-16 12:56:05,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18230 to 17249. [2022-11-16 12:56:05,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17249 states, 12160 states have (on average 1.4318256578947368) internal successors, (17411), 12468 states have internal predecessors, (17411), 4627 states have call successors, (4627), 461 states have call predecessors, (4627), 461 states have return successors, (4638), 4497 states have call predecessors, (4638), 4626 states have call successors, (4638) [2022-11-16 12:56:05,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17249 states to 17249 states and 26676 transitions. [2022-11-16 12:56:05,863 INFO L78 Accepts]: Start accepts. Automaton has 17249 states and 26676 transitions. Word has length 238 [2022-11-16 12:56:05,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:56:05,864 INFO L495 AbstractCegarLoop]: Abstraction has 17249 states and 26676 transitions. [2022-11-16 12:56:05,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-16 12:56:05,865 INFO L276 IsEmpty]: Start isEmpty. Operand 17249 states and 26676 transitions. [2022-11-16 12:56:05,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-11-16 12:56:05,883 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:56:05,884 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 15, 15, 15, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:56:05,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:56:05,884 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:56:05,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:56:05,885 INFO L85 PathProgramCache]: Analyzing trace with hash -304852008, now seen corresponding path program 1 times [2022-11-16 12:56:05,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:56:05,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170675752] [2022-11-16 12:56:05,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:56:05,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:56:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:07,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:56:07,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:07,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:56:07,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:07,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:56:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:07,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:56:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:07,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:56:07,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:07,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:56:07,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:07,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:56:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:07,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:56:07,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:07,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:56:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:07,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 12:56:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:07,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:56:07,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:07,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 12:56:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:07,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 12:56:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:07,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 12:56:07,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:07,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 12:56:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:07,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 12:56:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:07,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:56:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:08,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:56:08,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:08,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 12:56:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:08,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:56:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:08,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-16 12:56:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:08,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:56:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:08,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 12:56:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:08,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:56:08,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:08,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-16 12:56:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:08,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 12:56:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:08,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-16 12:56:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:08,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-16 12:56:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:08,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-16 12:56:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:08,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-16 12:56:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:08,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-16 12:56:08,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:08,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-16 12:56:08,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:08,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-16 12:56:08,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:08,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-16 12:56:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:08,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-11-16 12:56:08,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:08,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-11-16 12:56:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:08,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:56:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:08,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-11-16 12:56:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:08,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1347 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1344 trivial. 0 not checked. [2022-11-16 12:56:08,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:56:08,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170675752] [2022-11-16 12:56:08,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170675752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:56:08,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:56:08,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:56:08,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360887060] [2022-11-16 12:56:08,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:56:08,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:56:08,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:56:08,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:56:08,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:56:08,470 INFO L87 Difference]: Start difference. First operand 17249 states and 26676 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (39), 4 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-16 12:56:12,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:56:20,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:56:22,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:56:24,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:56:51,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:56:53,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:56:55,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:57:00,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:57:12,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:57:15,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:57:34,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:57:40,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:57:40,730 INFO L93 Difference]: Finished difference Result 52123 states and 80887 transitions. [2022-11-16 12:57:40,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:57:40,731 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (39), 4 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 268 [2022-11-16 12:57:40,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:57:40,962 INFO L225 Difference]: With dead ends: 52123 [2022-11-16 12:57:40,963 INFO L226 Difference]: Without dead ends: 34948 [2022-11-16 12:57:41,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:57:41,044 INFO L413 NwaCegarLoop]: 5443 mSDtfsCounter, 8934 mSDsluCounter, 9748 mSDsCounter, 0 mSdLazyCounter, 14602 mSolverCounterSat, 3618 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 84.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10019 SdHoareTripleChecker+Valid, 15191 SdHoareTripleChecker+Invalid, 18230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3618 IncrementalHoareTripleChecker+Valid, 14602 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 90.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:57:41,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10019 Valid, 15191 Invalid, 18230 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3618 Valid, 14602 Invalid, 10 Unknown, 0 Unchecked, 90.1s Time] [2022-11-16 12:57:41,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34948 states. [2022-11-16 12:57:44,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34948 to 33016. [2022-11-16 12:57:44,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33016 states, 23195 states have (on average 1.432938133218366) internal successors, (33237), 23801 states have internal predecessors, (33237), 8924 states have call successors, (8924), 900 states have call predecessors, (8924), 896 states have return successors, (8935), 8662 states have call predecessors, (8935), 8923 states have call successors, (8935) [2022-11-16 12:57:44,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33016 states to 33016 states and 51096 transitions. [2022-11-16 12:57:44,440 INFO L78 Accepts]: Start accepts. Automaton has 33016 states and 51096 transitions. Word has length 268 [2022-11-16 12:57:44,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:57:44,441 INFO L495 AbstractCegarLoop]: Abstraction has 33016 states and 51096 transitions. [2022-11-16 12:57:44,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (39), 4 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-16 12:57:44,441 INFO L276 IsEmpty]: Start isEmpty. Operand 33016 states and 51096 transitions. [2022-11-16 12:57:44,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-11-16 12:57:44,490 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:57:44,491 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 15, 15, 15, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:57:44,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:57:44,491 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:57:44,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:57:44,492 INFO L85 PathProgramCache]: Analyzing trace with hash -812840417, now seen corresponding path program 1 times [2022-11-16 12:57:44,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:57:44,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105643710] [2022-11-16 12:57:44,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:57:44,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:57:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:47,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:57:47,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:47,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:57:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:47,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:57:48,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:57:48,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:57:48,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:57:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:57:48,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:57:48,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:57:48,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 12:57:48,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:57:48,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 12:57:48,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 12:57:48,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 12:57:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 12:57:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 12:57:48,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:57:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:57:48,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 12:57:48,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:57:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-16 12:57:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:57:48,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 12:57:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:57:48,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-16 12:57:48,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 12:57:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-16 12:57:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-16 12:57:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-16 12:57:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-16 12:57:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-16 12:57:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-16 12:57:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-16 12:57:48,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-16 12:57:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-11-16 12:57:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-11-16 12:57:48,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-11-16 12:57:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-11-16 12:57:48,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-11-16 12:57:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-11-16 12:57:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-11-16 12:57:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:48,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-11-16 12:57:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:49,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:57:49,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:49,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1835 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 1775 trivial. 0 not checked. [2022-11-16 12:57:49,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:57:49,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105643710] [2022-11-16 12:57:49,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105643710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:57:49,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:57:49,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:57:49,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639292047] [2022-11-16 12:57:49,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:57:49,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:57:49,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:57:49,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:57:49,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:57:49,260 INFO L87 Difference]: Start difference. First operand 33016 states and 51096 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (44), 4 states have call predecessors, (44), 3 states have return successors, (43), 3 states have call predecessors, (43), 1 states have call successors, (43) [2022-11-16 12:57:52,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:58:04,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:58:14,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:58:38,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:58:40,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:58:46,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:58:57,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:59:01,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:59:01,567 INFO L93 Difference]: Finished difference Result 67853 states and 105262 transitions. [2022-11-16 12:59:01,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:59:01,568 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (44), 4 states have call predecessors, (44), 3 states have return successors, (43), 3 states have call predecessors, (43), 1 states have call successors, (43) Word has length 309 [2022-11-16 12:59:01,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:59:01,809 INFO L225 Difference]: With dead ends: 67853 [2022-11-16 12:59:01,810 INFO L226 Difference]: Without dead ends: 34918 [2022-11-16 12:59:02,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:59:02,028 INFO L413 NwaCegarLoop]: 4785 mSDtfsCounter, 4492 mSDsluCounter, 16871 mSDsCounter, 0 mSdLazyCounter, 14704 mSolverCounterSat, 4334 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4942 SdHoareTripleChecker+Valid, 21656 SdHoareTripleChecker+Invalid, 19043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4334 IncrementalHoareTripleChecker+Valid, 14704 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 70.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:59:02,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4942 Valid, 21656 Invalid, 19043 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4334 Valid, 14704 Invalid, 5 Unknown, 0 Unchecked, 70.1s Time] [2022-11-16 12:59:02,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34918 states. [2022-11-16 12:59:04,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34918 to 33012. [2022-11-16 12:59:04,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33012 states, 23189 states have (on average 1.4327051619302256) internal successors, (33223), 23795 states have internal predecessors, (33223), 8924 states have call successors, (8924), 900 states have call predecessors, (8924), 898 states have return successors, (8943), 8664 states have call predecessors, (8943), 8923 states have call successors, (8943) [2022-11-16 12:59:04,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33012 states to 33012 states and 51090 transitions. [2022-11-16 12:59:04,783 INFO L78 Accepts]: Start accepts. Automaton has 33012 states and 51090 transitions. Word has length 309 [2022-11-16 12:59:04,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:59:04,789 INFO L495 AbstractCegarLoop]: Abstraction has 33012 states and 51090 transitions. [2022-11-16 12:59:04,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (44), 4 states have call predecessors, (44), 3 states have return successors, (43), 3 states have call predecessors, (43), 1 states have call successors, (43) [2022-11-16 12:59:04,789 INFO L276 IsEmpty]: Start isEmpty. Operand 33012 states and 51090 transitions. [2022-11-16 12:59:04,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-11-16 12:59:04,835 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:59:04,835 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 26, 15, 15, 15, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:59:04,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:59:04,836 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:59:04,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:59:04,836 INFO L85 PathProgramCache]: Analyzing trace with hash 747064202, now seen corresponding path program 1 times [2022-11-16 12:59:04,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:59:04,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187777664] [2022-11-16 12:59:04,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:59:04,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:59:05,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:07,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:59:07,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:07,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:59:07,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:07,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:59:07,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:07,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:59:07,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:07,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:59:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:07,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:59:07,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:07,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:59:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:07,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:59:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:07,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:59:07,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:07,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 12:59:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:59:08,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 12:59:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 12:59:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 12:59:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 12:59:08,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 12:59:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:59:08,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:59:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 12:59:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:59:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-16 12:59:08,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:59:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 12:59:08,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:59:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-16 12:59:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 12:59:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-16 12:59:08,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-16 12:59:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-16 12:59:08,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-16 12:59:08,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-16 12:59:08,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-16 12:59:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-16 12:59:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-16 12:59:08,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-11-16 12:59:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-11-16 12:59:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-11-16 12:59:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-11-16 12:59:08,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-11-16 12:59:08,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-11-16 12:59:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-11-16 12:59:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-11-16 12:59:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:59:08,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 12:59:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:08,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1835 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 1793 trivial. 0 not checked. [2022-11-16 12:59:08,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:59:08,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187777664] [2022-11-16 12:59:08,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187777664] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:59:08,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039427382] [2022-11-16 12:59:08,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:59:08,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:59:08,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:59:08,777 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:59:08,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:59:12,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:12,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 14128 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:59:12,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:59:12,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1835 backedges. 667 proven. 0 refuted. 0 times theorem prover too weak. 1168 trivial. 0 not checked. [2022-11-16 12:59:12,957 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:59:12,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1039427382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:59:12,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:59:12,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 8 [2022-11-16 12:59:12,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781437460] [2022-11-16 12:59:12,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:59:12,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:59:12,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:59:12,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:59:12,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:59:12,960 INFO L87 Difference]: Start difference. First operand 33012 states and 51090 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-16 12:59:14,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:59:14,629 INFO L93 Difference]: Finished difference Result 65996 states and 102238 transitions. [2022-11-16 12:59:14,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:59:14,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 316 [2022-11-16 12:59:14,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:59:14,801 INFO L225 Difference]: With dead ends: 65996 [2022-11-16 12:59:14,801 INFO L226 Difference]: Without dead ends: 33020 [2022-11-16 12:59:14,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 399 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:59:14,915 INFO L413 NwaCegarLoop]: 6966 mSDtfsCounter, 2 mSDsluCounter, 13911 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 20877 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:59:14,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 20877 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:59:14,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33020 states. [2022-11-16 12:59:17,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33020 to 33020. [2022-11-16 12:59:17,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33020 states, 23197 states have (on average 1.4325559339569771) internal successors, (33231), 23803 states have internal predecessors, (33231), 8924 states have call successors, (8924), 900 states have call predecessors, (8924), 898 states have return successors, (8943), 8664 states have call predecessors, (8943), 8923 states have call successors, (8943) [2022-11-16 12:59:17,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33020 states to 33020 states and 51098 transitions. [2022-11-16 12:59:17,762 INFO L78 Accepts]: Start accepts. Automaton has 33020 states and 51098 transitions. Word has length 316 [2022-11-16 12:59:17,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:59:17,762 INFO L495 AbstractCegarLoop]: Abstraction has 33020 states and 51098 transitions. [2022-11-16 12:59:17,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-16 12:59:17,763 INFO L276 IsEmpty]: Start isEmpty. Operand 33020 states and 51098 transitions. [2022-11-16 12:59:17,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-11-16 12:59:17,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:59:17,813 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 26, 15, 15, 15, 15, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:59:17,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:59:18,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:59:18,023 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:59:18,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:59:18,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1653447877, now seen corresponding path program 1 times [2022-11-16 12:59:18,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:59:18,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369009351] [2022-11-16 12:59:18,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:59:18,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:59:19,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:22,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:59:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:22,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:59:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:22,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:59:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:22,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:59:22,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:22,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:59:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:22,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:59:22,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:22,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:59:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:22,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:59:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:22,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:59:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:22,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 12:59:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:22,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:59:22,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:22,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 12:59:22,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:22,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 12:59:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:22,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 12:59:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:22,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 12:59:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:22,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 12:59:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:22,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:59:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:22,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:59:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:22,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 12:59:22,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:22,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:59:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:22,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-16 12:59:22,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:23,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-16 12:59:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:23,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-16 12:59:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:23,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-16 12:59:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:23,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-16 12:59:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:23,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-16 12:59:23,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:23,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-16 12:59:23,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:23,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-16 12:59:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:23,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-16 12:59:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:23,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-11-16 12:59:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:23,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-11-16 12:59:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:23,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-11-16 12:59:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:23,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-11-16 12:59:23,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:23,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-16 12:59:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:23,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-11-16 12:59:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:23,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-11-16 12:59:23,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:23,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-11-16 12:59:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:23,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-11-16 12:59:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:23,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-11-16 12:59:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:23,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-11-16 12:59:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:23,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-11-16 12:59:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:23,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-11-16 12:59:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:23,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:59:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:23,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 12:59:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:23,623 INFO L134 CoverageAnalysis]: Checked inductivity of 2165 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 2080 trivial. 0 not checked. [2022-11-16 12:59:23,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:59:23,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369009351] [2022-11-16 12:59:23,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369009351] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:59:23,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803605350] [2022-11-16 12:59:23,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:59:23,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:59:23,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:59:23,626 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:59:23,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:59:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:28,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 14353 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 12:59:28,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:59:28,434 INFO L134 CoverageAnalysis]: Checked inductivity of 2165 backedges. 642 proven. 29 refuted. 0 times theorem prover too weak. 1494 trivial. 0 not checked. [2022-11-16 12:59:28,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:59:29,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2165 backedges. 84 proven. 1 refuted. 0 times theorem prover too weak. 2080 trivial. 0 not checked. [2022-11-16 12:59:29,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803605350] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:59:29,042 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:59:29,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2022-11-16 12:59:29,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700553441] [2022-11-16 12:59:29,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:59:29,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:59:29,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:59:29,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:59:29,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:59:29,046 INFO L87 Difference]: Start difference. First operand 33020 states and 51098 transitions. Second operand has 13 states, 13 states have (on average 11.538461538461538) internal successors, (150), 10 states have internal predecessors, (150), 2 states have call successors, (97), 5 states have call predecessors, (97), 5 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-11-16 12:59:33,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:59:46,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:59:48,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:59:50,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 13:00:20,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 13:00:31,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 13:00:42,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 13:00:46,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 13:00:46,232 INFO L93 Difference]: Finished difference Result 67853 states and 105323 transitions. [2022-11-16 13:00:46,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 13:00:46,233 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.538461538461538) internal successors, (150), 10 states have internal predecessors, (150), 2 states have call successors, (97), 5 states have call predecessors, (97), 5 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) Word has length 331 [2022-11-16 13:00:46,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 13:00:46,432 INFO L225 Difference]: With dead ends: 67853 [2022-11-16 13:00:46,432 INFO L226 Difference]: Without dead ends: 34871 [2022-11-16 13:00:46,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 760 GetRequests, 740 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2022-11-16 13:00:46,554 INFO L413 NwaCegarLoop]: 4761 mSDtfsCounter, 3260 mSDsluCounter, 16803 mSDsCounter, 0 mSdLazyCounter, 15434 mSolverCounterSat, 2777 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3710 SdHoareTripleChecker+Valid, 21564 SdHoareTripleChecker+Invalid, 18216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2777 IncrementalHoareTripleChecker+Valid, 15434 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.8s IncrementalHoareTripleChecker+Time [2022-11-16 13:00:46,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3710 Valid, 21564 Invalid, 18216 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2777 Valid, 15434 Invalid, 5 Unknown, 0 Unchecked, 74.8s Time] [2022-11-16 13:00:46,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34871 states. [2022-11-16 13:00:49,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34871 to 33041. [2022-11-16 13:00:49,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33041 states, 23216 states have (on average 1.4324172984148862) internal successors, (33255), 23822 states have internal predecessors, (33255), 8924 states have call successors, (8924), 902 states have call predecessors, (8924), 900 states have return successors, (8943), 8664 states have call predecessors, (8943), 8923 states have call successors, (8943) [2022-11-16 13:00:49,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33041 states to 33041 states and 51122 transitions. [2022-11-16 13:00:49,294 INFO L78 Accepts]: Start accepts. Automaton has 33041 states and 51122 transitions. Word has length 331 [2022-11-16 13:00:49,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 13:00:49,294 INFO L495 AbstractCegarLoop]: Abstraction has 33041 states and 51122 transitions. [2022-11-16 13:00:49,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.538461538461538) internal successors, (150), 10 states have internal predecessors, (150), 2 states have call successors, (97), 5 states have call predecessors, (97), 5 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-11-16 13:00:49,295 INFO L276 IsEmpty]: Start isEmpty. Operand 33041 states and 51122 transitions. [2022-11-16 13:00:49,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-11-16 13:00:49,331 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 13:00:49,331 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 26, 22, 15, 15, 15, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 13:00:49,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 13:00:49,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 13:00:49,547 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 13:00:49,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 13:00:49,548 INFO L85 PathProgramCache]: Analyzing trace with hash 656158470, now seen corresponding path program 2 times [2022-11-16 13:00:49,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 13:00:49,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34432628] [2022-11-16 13:00:49,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 13:00:49,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 13:00:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:53,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 13:00:53,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:53,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 13:00:53,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:53,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 13:00:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:53,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 13:00:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:53,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 13:00:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:53,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 13:00:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:53,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 13:00:53,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:53,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 13:00:53,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:53,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 13:00:53,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:53,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 13:00:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:53,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 13:00:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:53,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 13:00:53,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:53,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 13:00:53,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:53,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 13:00:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:53,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 13:00:53,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:53,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 13:00:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:53,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 13:00:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:53,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 13:00:53,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:53,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 13:00:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:53,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 13:00:53,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:53,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-16 13:00:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:54,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-16 13:00:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:54,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-16 13:00:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:54,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-16 13:00:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:54,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-16 13:00:54,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:54,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-16 13:00:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:54,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-16 13:00:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:54,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-16 13:00:54,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:54,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-16 13:00:54,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:54,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-16 13:00:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:54,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-11-16 13:00:54,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:54,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-11-16 13:00:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:54,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-16 13:00:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:54,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-16 13:00:54,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:54,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-11-16 13:00:54,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:54,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-11-16 13:00:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:54,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-11-16 13:00:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:54,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-11-16 13:00:54,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:54,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-11-16 13:00:54,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:54,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-11-16 13:00:54,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:54,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-11-16 13:00:54,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:54,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-11-16 13:00:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:54,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 13:00:54,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:54,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 13:00:54,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:54,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2396 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 2263 trivial. 0 not checked. [2022-11-16 13:00:54,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 13:00:54,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34432628] [2022-11-16 13:00:54,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34432628] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 13:00:54,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179840769] [2022-11-16 13:00:54,673 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 13:00:54,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 13:00:54,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 13:00:54,674 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 13:00:54,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 13:01:40,781 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 13:01:40,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 13:01:40,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 14458 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-16 13:01:40,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 13:01:41,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2396 backedges. 704 proven. 3 refuted. 0 times theorem prover too weak. 1689 trivial. 0 not checked. [2022-11-16 13:01:41,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 13:01:42,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2396 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 2263 trivial. 0 not checked. [2022-11-16 13:01:42,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179840769] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 13:01:42,019 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 13:01:42,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 16 [2022-11-16 13:01:42,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138873787] [2022-11-16 13:01:42,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 13:01:42,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 13:01:42,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 13:01:42,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 13:01:42,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2022-11-16 13:01:42,022 INFO L87 Difference]: Start difference. First operand 33041 states and 51122 transitions. Second operand has 16 states, 16 states have (on average 8.875) internal successors, (142), 13 states have internal predecessors, (142), 2 states have call successors, (111), 5 states have call predecessors, (111), 5 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-11-16 13:01:48,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 13:02:08,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 13:02:09,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 13:02:11,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 13:02:13,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 13:02:16,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 13:02:18,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 13:02:20,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 13:02:22,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 13:03:14,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 13:03:31,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 13:03:50,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 13:03:57,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 13:03:57,058 INFO L93 Difference]: Finished difference Result 67892 states and 105364 transitions. [2022-11-16 13:03:57,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-16 13:03:57,059 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.875) internal successors, (142), 13 states have internal predecessors, (142), 2 states have call successors, (111), 5 states have call predecessors, (111), 5 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) Word has length 338 [2022-11-16 13:03:57,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 13:03:57,187 INFO L225 Difference]: With dead ends: 67892 [2022-11-16 13:03:57,188 INFO L226 Difference]: Without dead ends: 34887 [2022-11-16 13:03:57,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 781 GetRequests, 752 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=243, Invalid=627, Unknown=0, NotChecked=0, Total=870 [2022-11-16 13:03:57,277 INFO L413 NwaCegarLoop]: 4770 mSDtfsCounter, 3268 mSDsluCounter, 37024 mSDsCounter, 0 mSdLazyCounter, 29867 mSolverCounterSat, 2766 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 123.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3718 SdHoareTripleChecker+Valid, 41794 SdHoareTripleChecker+Invalid, 32639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 2766 IncrementalHoareTripleChecker+Valid, 29867 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 131.4s IncrementalHoareTripleChecker+Time [2022-11-16 13:03:57,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3718 Valid, 41794 Invalid, 32639 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [2766 Valid, 29867 Invalid, 6 Unknown, 0 Unchecked, 131.4s Time] [2022-11-16 13:03:57,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34887 states. [2022-11-16 13:03:59,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34887 to 33057. [2022-11-16 13:03:59,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33057 states, 23231 states have (on average 1.4321811372734707) internal successors, (33271), 23837 states have internal predecessors, (33271), 8924 states have call successors, (8924), 903 states have call predecessors, (8924), 901 states have return successors, (8943), 8664 states have call predecessors, (8943), 8923 states have call successors, (8943) [2022-11-16 13:03:59,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33057 states to 33057 states and 51138 transitions. [2022-11-16 13:03:59,935 INFO L78 Accepts]: Start accepts. Automaton has 33057 states and 51138 transitions. Word has length 338 [2022-11-16 13:03:59,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 13:03:59,935 INFO L495 AbstractCegarLoop]: Abstraction has 33057 states and 51138 transitions. [2022-11-16 13:03:59,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.875) internal successors, (142), 13 states have internal predecessors, (142), 2 states have call successors, (111), 5 states have call predecessors, (111), 5 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-11-16 13:03:59,936 INFO L276 IsEmpty]: Start isEmpty. Operand 33057 states and 51138 transitions. [2022-11-16 13:03:59,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-11-16 13:03:59,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 13:03:59,965 INFO L195 NwaCegarLoop]: trace histogram [34, 27, 27, 26, 15, 15, 15, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 13:04:00,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 13:04:00,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e27aa-951e-444a-8992-33556c2cc7a4/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 13:04:00,179 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 13:04:00,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 13:04:00,179 INFO L85 PathProgramCache]: Analyzing trace with hash -55327930, now seen corresponding path program 3 times [2022-11-16 13:04:00,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 13:04:00,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098705863] [2022-11-16 13:04:00,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 13:04:00,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 13:04:28,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 13:04:28,805 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.